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1000 results found for “Relaxin”
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Name :
MT IIDescription:
Melanotan-II
Melanotan-II, MT-II, Melanotan.
Product # :
HOR-289Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
The molecular formula of Melanotan-II is C50H69N15O9. It has the amino acid sequence of Ac-Nle-cyclo [Asp-His-D-Phe-Arg-Trp-Lys]-NH2 and a molecular weight of 1024.2 Dalton. The CAS Number is 121062-08-6.
Formulation
The protein (1mg/ml) was lyophilized with no additives.
Purity
Greater than 99% as determined by by RP-HPLC.
More Info
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Introduction
Melanotan and Melanotan-II are both analogs of the peptide hormone alpha melanocyte stimulating hormone (a-MSH) that tend to induce skin tanning. Unlike Melanotan, Melanotan-II has the additional effect of increasing libido. Melanotan II has aphrodisiac properties.
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Synonyms
Melanotan-II, MT-II, Melanotan.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Melanotan-II although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution MT-II should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Melanotan-II in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Leptin qA Rat, PEGDescription:
Leptin Quadruple Antagonist, Pegylated Rat Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-1241Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Leptin Pegylated Quadruple Antagonist Rat Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids. The Rat Leptin antagonist is bound to 20 kDa mono-PEG at N-terminus, resulting in 35.6 kDa. The Rat Leptin Pegylated Quadruple Antagonist was mutated, resulting in D23L/L39A/D40A/F41A that was purified by proprietary chromatographic techniques.
Source
Escherichia coli.
Formulation
The Rat Leptin Pegylated Quadruple Antagonist was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.
Purity
Greater than 98.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.
Biological Activity
Rat Leptin Pegylated Quadruple Antagonist inhibits leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Its in vitro.
More Info
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Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
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Physical Appearance
White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Rat Leptin Pegylated Quadruple Antagonist although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 and up to 2mM of rat pegylated leptin antagonist and filter sterilization rat pegylated leptin antagonist can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Rat Leptin Pegylated Quadruple Antagonist in sterile water or sterile 0.4% NaHCO3adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.
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Background
Leptin is a hormone which mainly produced by adipocytes. Leptin’s main part is to regulate long-term energy balance. Leptin is encoded by the LEP gene. Leptin receptors are expressed by various brain and peripheral cell types. leptin levels influence satiety, appetite and triggers behaviors which lead to energy savings. High leptin levels are interpreted by the brain that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Leptin HumanDescription:
Human Leptin
OB Protein, Obesity Protein, OBS, Obesity factor, Leptin.
Product # :
CYT-683Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Leptin Human produced syntheticaly contains 35 amino acids (22-56 a.a.) having a molecular mass of 3950.6 Dalton.
Formulation
The protein was lyophilized from a concentrated (1mg/ml) solution with no additives.
Purity
Greater than 95.0% as determined by RP-HPLC.
More Info
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Introduction
A 16kDa peptide hormone secreted from white adipocytes and implicated in the regulation of food intake and energy balance. Leptin provides the key afferent signal from fat cells in the feedback system that controls body fat stores.
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Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor, Leptin.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Leptin although stable at room temperature, should be stored desiccated below -20°C. Reconstituted Leptin is best stored refrigerated at 4°C.
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Solubility
The lyophilized Leptin is very soluble in water and most aqueous buffers below and above the isoelectric point.
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Amino Acid Sequence
Val-Pro-Ile-Gln-Lys-Val-Gln-Asp-Asp-Thr-Lys-Thr-Leu-Ile-Lys-Thr-Ile-Val-Thr-Arg-Ile-Asn-Asp-Ile-Ser-His-Thr-Gln-Ser-Val-Ser-Ser-Lys-Gln-Lys.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
Leptin-B TilapiaDescription:
Leptin-B Tilapia Recombinant
Product # :
CYT-1110Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Leptin-B Tilapia Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 152 amino acids and having a molecular mass of 15,243 Dalton. The Leptin-B Tilapia is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Lyophilized from a concentrated (1mg/ml) solution containing NaHCO3 at 1:2 salt: protein ratio.
Purity
Greater than 95.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.Biological Activity
Tilapia leptins were found to be biologically active in promoting proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor, but their activity was lower than that of mammalian leptin. Furthermore, the Tilapia leptins were biologically active in promoting STAT‐LUC activation in COS7 cells transfected with Tilapia leptin receptor but not in cells transfected with human leptin receptor. Tilapia Leptin A was more active than Tilapia Leptin B.
More Info
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Introduction
Leptin is a protein hormone. It is mainly produced in adipose cells that regulate energy homeostasis by restraining hunger. Leptin ties to nuclear receptors in the hypothalamus (arcuate nucleus). Similar to insulin resistance in type II diabetes, in obesity there is a decrease in the sensitivity towards leptin, ending in a failure to identify satiety, even in high levels of energy stores or leptin itself. Full-length cDNA encoding 2 leptin sequences (tLepA and tLepB) and 1 leptin receptor sequence (tLepR) exists in tilapia (Oreochromis niloticus). The full-length cDNA of tLepR is 3423 bp, encoding a protein of 1140 amino acid which contained all functionally important domains conserved among vertebrate leptin receptors. The cDNAs of tLepA and tLepB are 486 bp and 459 bp in length, encoding proteins of 161 aa and 152 aa, respectively. The three-dimensional structures of tLepA and tLepB demonstrates strong conservation of tertiary structure with that of human leptin comprised of 4 helixes.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Leptin-B Tilapia although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Leptin-B Tilapia should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Leptin-B Tilapia in sterile water or 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
The first six N-terminal amino acids of recombinant Tilapia leptin B are Ala-Leu-Leu-Thr-Lys-Gly.
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Protein content
Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.19 for 1 mg/ml Leptin-B Tilapia as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the DNAman computer analysis program of protein sequences.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
TerlipressinDescription:
Terlipressin
Product # :
HOR-287Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Terlipressin contains 12 amino acids Gly-Gly-Gly-c[Cys-Tyr-Phe-Gln-Asn-Cys]-Pro-Lys-Gly-NH2 and having a molecular weight of 1227.37 Dalton.
Formulation
The protein (1 mg/ml) was lyophilized with no additives.
Purity
Greater than 98.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.More Info
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Introduction
Terlipressin is similar to a naturally occurring hormone present in the body, known as antidiuretic hormone (ADH) or vasopressin. ADH has two main effects in the body. Firstly, it causes narrowing of blood vessels (vasoconstriction), thereby limiting blood flow to a particular area of the body. It also acts on receptors in the kidney to retain water in the body, which helps to prevent excessive loss of water in the urine. Terlipressin is commonly used to stop bleeding of varices in the food pipe (oesophagus). Varices are fragile distended veins that can occur in various parts of the body such as the oesophagus. This is caused by an increase in blood pressure in certain diseases such as severe liver disease. These fragile varices can rupture and lead to life threatening bleeding. Terlipressin is therefore given to narrow blood vessels, and so restricting blood flow to the varices and stopping the bleeding.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Terlipressin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Terlipressin should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Terlipressin18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Description:
Vasoactive Intestinal Peptide
Product # :
HOR-043Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Vasoactive Intestinal Peptide Synthetic is a single, non-glycosylated polypeptide chain containing 28 amino acids, having a molecular mass of 3325 Dalton and a Molecular formula of C147H238N44O42S .
Formulation
The protein was lyophilized with no additives.
Purity
Greater than 97.0% as determined by analysis by RP-HPLC.
More Info
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Vasoactive Intestinal Peptide although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Vasoactive Intestinal Peptide should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Vasoactive Intestinal Peptide in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
H-His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-NH2.
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Background
Vasoactive Intestinal Peptide (VIP), a prominent member of the glucagon-secretin peptide superfamily, plays a multifaceted role as a neuropeptide and neurotransmitter. This research paper aims to provide an extensive analysis of VIP, exploring its biochemical properties, diverse physiological functions, and potential therapeutic applications in various disease conditions.
Vasoactive Intestinal Peptide (VIP), originally identified for its potent vasodilatory properties in the gastrointestinal system, has since been recognized for its wide-ranging physiological effects throughout the body. As a neuropeptide and neurotransmitter.
VIP, a 28-amino acid peptide, exhibits a diverse range of biological activities due to its interactions with multiple G protein-coupled receptors (GPCRs) from the VIP/PACAP receptor family (Harmar et al., 2012). These receptors are expressed in various tissues and cells, enabling VIP to exert its pleiotropic effects.
VIP is involved in the regulation of numerous physiological processes. It functions as a potent vasodilator, modulates smooth muscle activity in the gastrointestinal tract, and participates in neurotransmission in the central and peripheral nervous systems (Lelievre et al., 2008). Additionally, VIP has immunomodulatory properties, influencing immune cell functions and inflammatory responses (Delgado et al., 2004).
VIP serves as a neurotransmitter in the central nervous system, where it contributes to various neuronal functions, including learning, memory, and sensory perception (Deng et al., 2015). Moreover, VIP has demonstrated neuroprotective effects in neurodegenerative disorders, making it a potential therapeutic target for neuroprotection and neuroregeneration (Delgado et al., 2002).
VIP's diverse physiological functions offer potential therapeutic applications in various disease contexts. Research has explored its potential in the treatment of inflammatory diseases, neurodegenerative disorders, and gastrointestinal disorders (Delgado et al., 2013). Furthermore, VIP-based therapies are being investigated for their neuroprotective potential in brain injuries and stroke.
As the research on VIP continues to progress, further investigation is warranted to uncover the precise mechanisms of action and potential clinical applications in medicine. VIP stands as a remarkable example of a neuropeptide with extensive physiological roles and therapeutic potential in various disease conditions.
What is the molecular weight/Mw of VASOACTIVE INTESTINAL PEPTIDE Protein?
VASOACTIVE INTESTINAL PEPTIDE Protein has a total Mw of 3.32kDa.
What is the Purity of VASOACTIVE INTESTINAL PEPTIDE Protein?
VASOACTIVE INTESTINAL PEPTIDE Protein is >97% pure as determined by SDS-PAGE.
What is the Biological Activity of VASOACTIVE INTESTINAL PEPTIDE Protein?
The biological functionality of VASOACTIVE INTESTINAL PEPTIDE Protein will be determined in the future.
What is the amino acid sequence of VASOACTIVE INTESTINAL PEPTIDE Protein?
H-His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-NH2.
What applications can VASOACTIVE INTESTINAL PEPTIDE Protein be used in?
VASOACTIVE INTESTINAL PEPTIDE Protein can probably be used in western blot, ELISA and Lateral Flow.
What is the endotoxin level for VASOACTIVE INTESTINAL PEPTIDE Protein?
The endotoxin level is minimal, VASOACTIVE INTESTINAL PEPTIDE Protein was purified using conventional chromatography techniques.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
UCN3 HumanDescription:
Urocortin 3 Human Recombinant
Stresscopin, urocortin-iii.
Product # :
HOR-056Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
The UCN3Human is created as a recombinant protein with a 4kda N-terminal fusion of His Tag. The UCN3His-Tagged Fusion Protein, produced in E. coli, is a 20kDa protein containing 161 amino acid residues of the UCN3Human, 1-161 amino acids.
Source
Escherichia Coli.
Formulation
Each mg was lyophilized with 1xPBS, 0.4% SDS and 4mM DTT.
Purity
Greater than 90% as determined by SDS-PAGE.
More Info
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Synonyms
Stresscopin, urocortin-iii.
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Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
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Stability
Store lyophilized UCN3at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.
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Solubility
It is recommended to add deionized water to prepare a working stock solution of approximately 0.5mg/ml and let the lyophilized pellet dissolve completely. Product is not sterile! Please filter the product by an appropriate sterile filter before using it on cell culture.
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Background
Urocortin 3 also known as UCN3 is a part of the corticotropin-releasing factor (CRF) family of peptides, which are involved in metabolism, stress response and neuroendocrine regulation. UCN3 exerts its biological effects through interactions with CRFR2. UCN3 takes a main part in mediating few important biological processes, specially those associated with energy metabolism, stress response and the regulation of the hypothalamic-pituitary-adrenal (HPA) axis. UCN3 expressed mainly in the brain in areas such as the hypothalamus, as well as in peripheral tissues, including the heart and adipose tissue.
What is the molecular weight/Mw of UCN3 HUMAN Protein?
UCN3 HUMAN Protein has a total Mw of 20kDa.
What is the source or expression system of UCN3 HUMAN Protein?
Escherichia Coli.
What is the Purity of UCN3 HUMAN Protein?
UCN3 HUMAN Protein is >90% pure as determined by SDS-PAGE.
What is the Biological Activity of UCN3 HUMAN Protein?
The biological functionality of UCN3 HUMAN Protein will be determined in the future.
What applications can UCN3 HUMAN Protein be used in?
UCN3 HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.
What is the endotoxin level for UCN3 HUMAN Protein?
The endotoxin level is minimal, UCN3 HUMAN Protein was purified using conventional chromatography techniques.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Super Leptin qA OvineDescription:
Super Leptin Antagonist Ovine Recombinant
Product # :
CYT-1245Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Super Leptin Antagonist Ovine Recombinant is a single polypeptide chain containing 146 amino acids, an additional Ala at N-terminus acids and having a molecular mass of ~ 16 kDa. Super Ovine Leptin Antagonist was mutated, resulting in D23L/L39A/D40A/F41A that was purified by proprietary chromatographic techniques.
Source
Escherichia coli.
Formulation
The protein was lyophilized from a concentrated (1mg/ml) solution with 0.003mM NaHCO3.
Purity
Greater than 98.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.
Biological Activity
ProSpec’s super Ovine leptin antagonist is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Super Ovine leptin antagonist also inhibits various leptin effects in several in vitro bioassays.
More Info
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Physical Appearance
White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Super Leptin Antagonist although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution of super Ovine leptin antagonist at > 0.1 mg/ml and up to 2 mg/ml and filter sterilization super Ovine leptin antagonist can be stored at 4C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Super Leptin Antagonist in sterile water or sterile 0.4% NaHCO3 adjusted to pH 10, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Val-Pro-Ile-Arg.
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Background
Leptin is a hormone which mainly produced by adipocytes. Leptin’s main part is to regulate long-term energy balance. Leptin is encoded by the LEP gene. Leptin receptors are expressed by various brain and peripheral cell types. leptin levels influence satiety, appetite and triggers behaviours which save energy. When leptin levels are high, the brain interprets that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.
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Protein content
Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.2 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Leptin qA Ovine, PEGDescription:
Leptin Quadruple Antagonist Pegylated Ovine Recombinant
Product # :
CYT-1246Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Leptin Antagonist Quadruple Mutant Ovine Recombinant is a single non-glycosilated polypeptide chain containing 146 amino acids and additional Ala at N-terminus. The Ovine Leptin antagonist was mutated, resulting in D23L/L39A/D40A/F41A mutant. The Ovine Leptin antagonist is bound to 20 kDa mono-PEG at N-terminus, resulting in 35.6 kDa. The Ovine Leptin Quadruple anatagonist Pegylated runs as a 48 kDa due to enlarged hydrodymanic volume. Leptin Antagonist Quadruple Mutant Ovine Recombinant was purified by proprietary chromatographic techniques.
Source
Escherichia coli.
Formulation
The Ovine Leptin Quadruple anatagonist was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.
Purity
Greater than 95.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.
Biological Activity
Pegylated Ovine Leptin Quadruple Antagonist inhibits leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Pegylated recombinant Ovine leptin antagonist in vitro activity is 6-8 fold lower than the non-pegylated recombinant super Ovine leptin antagonist but is 15 fold higher as compared to pegylated recombinant super active ovine leptin antagonist.
More Info
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Physical Appearance
White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Leptin Antagonist Quadruple Mutant Ovine Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 mg/ml and up to 2mM and filter sterilization LEP mutant can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Leptin Antagonist Quadruple Mutant Ovine Recombinant in sterile water or sterile 0.4% NaHCO3adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.
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Background
Leptin is mainly produced by adipocytes. Leptin’s main part is to regulate long-term energy balance. Leptin is encoded by the LEP gene. Leptin effects mostly on leptin receptors in the cell mambrane of various cells in the human body. The leptin receptor can be found on a various cell types. The leptin receptor is a single-transmembrane-domain type 1 cytokine receptor. leptin levels influence satiety, appetite and triggers behaviours which save energy. High leptin levels are interpreted by the brain that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.
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Protein content
Protein quantization was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.2 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
MREG HumanDescription:
Melanoregulin Human Recombinant
Melanoregulin, DSU, Dilute Suppressor Protein Homolog, WDT2, Whn-Dependent Transcript 2.
Product # :
PRO-1885Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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- source
- formulation
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Description
MREG Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 237 amino acids (1-214 a.a) and having a molecular mass of 27.3kDa.MREG is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
MREG protein solution (0.5mg/ml) containing 20mM Tris-HCl buffer (pH 8.0), 0.15M NaCl, 10% glycerol and 1mM DTT.
Purity
Greater than 90% as determined by SDS-PAGE.
More Info
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Introduction
Melanoregulin (MREG) takes part in membrane fusion and in regulating the biogenesis of disk membranes of photoreceptor rods. MREG is expressed in photoreceptor cells as two isoforms as a result of alternative splicing. MREG interacts with Peripherin-2, a photoreceptor specific tetraspanin protein which is required to preserve normal cell structure during the renewal process of membrane fusion. Moreover, MREG plays a part in the incorporation of pigments into hair.
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Synonyms
Melanoregulin, DSU, Dilute Suppressor Protein Homolog, WDT2, Whn-Dependent Transcript 2.
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Physical Appearance
Sterile Filtered clear solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please avoid freeze thaw cycles.
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Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSMGLRDWL RTVCCCCGCE CLEERALPEK EPLVSDNNPY SSFGATLVRD DEKNLWSMPH DVSHTEADDD RTLYNLIVIR NQQAKDSEEW QKLNYDIHTL RQVRREVRNR WKCILEDLGF QKEADSLLSV TKLSTISDSK NTRKAREMLL KLAEETNIFP TSWELSERYL FVVDRLIALD AAEEFFKLAR RTYPKKPGVP CLADGQKELH YLPFPSP
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
TAC3 HumanDescription:
Tachykinin-3 Human Recombinant
Tachykinin-3, ZNEUROK1, Neurokinin-B, NKB, Neuromedin-K, TAC3, NKNB, PRO1155.
Product # :
PRO-716Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
TAC3 Human Recombinant fused with 20 amino acid His tag at N-terminus produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 125 amino acids (17-121 a.a.) and having a molecular mass of 13.8kDa.The TAC3 is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The TAC3 solution contains 20mM Tris-HCl buffer (pH 8.0) and 20% glycerol.
Purity
Greater than 95.0% as determined by SDS-PAGE.
More Info
-
Introduction
Tachykinin-3 belongs to the substance P-related tachykinin family. Tachykinins are active peptides that stimulate neurons, induce behavioral responses, are effective vasodilators and secretagogues, and contract (directly or indirectly) many smooth muscles. TAC3 and its receptor are essential switches of regulator of human puberty, regulated by the brain through the release of the GnRH which starts a chain of processes which eventually lead to the production of sex hormones.
During pregnancy, the expression of TAC3 is restricted to the outer syncytiotrophoblast of the placenta, significant concentrations of TAC3 can be identified in plasma as early as week 9, and plasma concentrations of TAC3 are grossly elevated in pregnancy-induced hypertension and pre-eclampsia. Higher Tachykinin-3 concentrations in normotensive pregnant women may be caused by the advanced gestational age and/or the result of a negative interaction of other vasoactive substances. TAC3 has a role in the continuance of high placental blood flow in normal pregnancy. -
Synonyms
Tachykinin-3, ZNEUROK1, Neurokinin-B, NKB, Neuromedin-K, TAC3, NKNB, PRO1155.
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Physical Appearance
Sterile Filtered colorless solution.
-
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
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Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH QSFGAVCKEP QEEVVPGGGR SKRDPDLYQL LQRLFKSHSS LEGLLKALSQ ASTDPKESTS PEKRDMHDFF VGLMGKRSVQ PDSPTDVNQE NVPSFGILKY PPRAE.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Leptin tA Mouse, PEG (D23L)Description:
Leptin Triple Antagonist (D23L) Pegylated Mouse Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-1242Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
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- biological activity
- More Info
Description
Leptin Antagonist Triple Mutant D23L Mouse Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus. The Leptin antagonist was mutated, resulting in L39A/D40A/F41A mutant. The Mouse Leptin antagonist is bound to 20 kDa mono-PEG at N-terminus, resulting in 35.6 kDa. The Mouse Leptin triple anatagonist runs as a 48 kDa. Leptin Antagonist Triple Mutant Mouse Recombinant was purified by proprietary chromatographic techniques.
Source
Escherichia coli.
Formulation
The Mouse Leptin triple anatagonist was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.
Purity
Greater than 99.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.
Biological Activity
Leptin Antagonist Triple Mutant D23L Mouse Recombinant is capable of stimulating proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Its in vitro activity is only slightly lower than the non-pegylated recombinant mouse leptin but in vivo it has profound weight reducing effect (as compared to the non-pegylated recombinant mouse leptin), resulting mainly from reduced food intake.
More Info
-
Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
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Physical Appearance
White lyophilized (freeze-dried) powder.
-
Stability
Lyophilized Leptin Antagonist Triple Mutant Mouse Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1mg/ml and up to 2mM and filter sterilization LEP mutant can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Leptin Antagonist Triple Mutant Mouse Recombinant in sterile water or sterile 0.4% NaHCO3adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.
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Background
Leptin is a hormone which mainly produced by adipocytes . Leptin’s main part is to regulate long-term energy balance. Leptin is encoded by the LEP gene. Leptin effects mainly on leptin receptors in the cell mambrane of various cells in the human body. The leptin receptor is found on a wide range of cell types. The leptin receptor is a single-transmembrane-domain type 1 cytokine receptor. leptin levels influence satiety, appetite and triggers behaviors which lead to energy savings High leptin levels are interpreted by the brain that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
SCRN1 HumanDescription:
Secernin 1 Human Recombinant
Secernin-1, SES1, KIAA0193, Secernin 1.
Product # :
PRO-2212Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- source
- formulation
- purity
- More Info
Description
SCRN1 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 437 amino acids (1-414 a.a) and having a molecular mass of 48.8kDa. SCRN1 is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
SCRN1 protein solution (0.5mg/ml) containing Phosphate buffered saline (pH7.4) , 10% glycerol and 1mM DTT.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
Secernin 1 (SCRN1) which is a member of the peptidase C69 family, regulates exocytosis in mast cells. SCRN1 increases both the level of secretion and the sensitivity of mast cells to stimulation with calcium.
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Synonyms
Secernin-1, SES1, KIAA0193, Secernin 1.
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Physical Appearance
Sterile Filtered colorless solution.
-
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid multiple freeze-thaw cycles.
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Amino Acid Sequence
GSSHHHHHH SSGLVPRGSH MGSMAAAPPS YCFVAFPPRA KDGLVVFGKN SARPRDEVQE VVYFSAADHE PESKVECTYI SIDQVPRTYA IMISRPAWLW GAEMGANEHG VCIANEAINT REPAAEIEAL LGMDLVRLGL ERGETAKEAL DVIVSLLEEH GQGGNYFEDA NSCHSFQSAY LIVDRDEAWV LETIGKYWAA EKVTEGVRCI CSQLSLTTKM DAEHPELRSY AQSQGWWTGE GEFNFSEVFS PVEDHLDCGA GKDSLEKQEE SITVQTMMNT LRDKASGVCI DSEFFLTTAS GVSVLPQNRS SPCIHYFTGT PDPSRSIFKP FIFVDDVKLV PKTQSPCFGD DDPAKKEPRF QEKPDRRHEL YKAHEWARAI IESDQEQGRK LRSTMLELEK QGLEAMEEIL TSSEPLDPAE VGDLFYDCVD TEIKFFK.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Leptin tA Rat, PEGDescription:
Leptin Antagonist Triple Mutant Pegylated Rat Recombinant
Product # :
CYT-567Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- biological activity
- More Info
Description
Leptin Antagonist Triple Mutant Rat Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a molecular mass of ~ 16 kDa.The Rat Leptin antagonist was mutated, resulting in L39A/D40A/F41A mutant.The Rat Leptin antagonist is bound to 20 kDa mono-PEG at N-terminus, resulting in 35.6 kDa. The Rat Leptin triple anatagonist runs as a 48 kDa.Leptin Antagonist Triple Mutant Rat Recombinant was purified by proprietary chromatographic techniques.
Source
Escherichia coli.
Formulation
The Rat Leptin triple anatagonist was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.
Purity
Greater than 99.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.Biological Activity
Leptin Antagonist Triple Mutant Rat Recombinant half-life in circulation after SC injection was over 20 hours.
Leptin Antagonist Triple Mutant Rat Recombinant is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Leptin Antagonist Triple Mutant Rat Recombinant in vitro activity is 5-6 fold lower than the non-pegylated antagonist, though in vivo it has profound weight gain effect (as compared to the non-pegylated antagonist), resulting mainly from increased food intake.More Info
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Physical Appearance
White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Leptin Antagonist Triple Mutant Rat Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 Leptin mutant mg/ml and up to 2 mM and filter sterilization LEP mutant can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested.Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Leptin Antagonist Triple Mutant Rat Recombinant in sterile water or sterile 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.
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Protein content
Protein quantization was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.2 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Leptin tA HumanDescription:
Leptin Antagonist Triple Mutant Human Recombinant
Product # :
CYT-352Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- biological activity
- More Info
Description
Leptin Antagonist Triple Mutant Human Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a molecular weight of 16 kDa, Leptin was mutated, resulting in L39A/D40A/F41A. Leptin Antagonist Triple Mutant Human Recombinant was purified by proprietary chromatographic techniques.
Source
Escherichia coli.
Formulation
The protein was lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3.
Purity
Greater than 98.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.Biological Activity
ProSpec’s Leptin triple antagonist is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. It also inhibits various leptin effects in several in vitro bioassays.More Info
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Physical Appearance
White lyophilized (freeze-dried) powder.
-
Stability
Lyophilized Leptin Antagonist Triple Mutant Human Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 mg/ml and up to 2 mg/ml and filter sterilization Leptin mutant can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Leptin Antagonist Triple Mutant Human Recombinant in sterile 0.4% NaHCO3, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Val-Pro-Ile-Gln.
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Protein content
Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.88 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Leptin N82K Human, PEGDescription:
Leptin N82K Human Recombinant, Pegylated
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-1107Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- biological activity
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Description
Pegylated Leptin N82K Human Recombinant produced in E.Coli is a single non-glycosilated polypeptide chain containing 146 amino acids, an additional Ala at N-terminus and one molecule of PEG 20 kDa at its N-terminus acids and having a molecular weight of 35.6kDa. However due to enlarged hydrodymanic volume it runs on the SDS-PAGE as 48 kDa protein and in gel-filtration on Superdex 200 as over 200 kDa protein. Pegylated Leptin N82K Human Recombinant was purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3 Having 35-40% protein.
Purity
Greater than 99.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.Biological Activity
Pegylated Leptin Human is capable of stimulatng proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Pegylated Leptin in vitro activity is 5-7 fold lower than the non-pegylated recombinant human leptin but in vivo Pegylated Leptin has profound weight reducing effect (as compared to the non-pegylated recombinant human leptin), resulting mainly from reduced food intake.
More Info
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Introduction
Leptin takes an important part in the regulation of energy balance and body weight control.After entering the circulation, Leptin binds LEPRwhich results in the activation of several major signalling pathways. In the hypothalamus Leptin acts as an appetite-regulating factor that induces a decrease in food intake and an increase in energy consumption and also regulates bone mass and secretion of hypothalamo-pituitary-adrenal hormones. In the periphery, increases basal metabolism, regulates pancreatic beta-cell function and insulin secretion and affects innate and adaptive immunity.
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Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Pegylated Leptin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Pegylated Leptin N82K should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Pegylated Leptin in sterile water or 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
CALML5 HumanDescription:
Calmodulin Like 5 Human Recombinant
CLSP, Calmodulin-like skin protein, CALML5, Calmodulin-like protein 5.
Product # :
PRO-2475Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- More Info
Description
CALML5 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain (a.a 2-146) containing 155 amino acids including a 10 a.a N-terminal His tag. The total molecular mass is 17.0kDa (calculated).
Source
Escherichia Coli.
Formulation
CALML5 filtered (0.4 µm) and lyophilized from 0.5mg/ml in 20 mM Tris buffer, 50 mM NaCl and 5% w/v trehalosa, pH 7.5.
Purity
Greater than 95.0% as determined by SDS-PAGE.
More Info
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Introduction
Calmodulin Like 5, also known as CALML5 is a part of the calmodulin family of calcium binding proteins. CALML5 undergoes a conformational change as a result of binding calcium. CALML5 is taking part in terminal differentiation of keratinocytes and encodes a calcium binding protein expressed in the epidermis.
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Synonyms
CLSP, Calmodulin-like skin protein, CALML5, Calmodulin-like protein 5.
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Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
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Stability
Store lyophilized protein at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.
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Solubility
It is recommended to add deionized water to prepare a working stock solution of approximately 0.5mg/ml and let the lyophilized pellet dissolve completely. CALML5 is not sterile! Please filter the product by an appropriate sterile filter before using it in the cell culture.
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Amino Acid Sequence
MKHHHHHHAS AGELTPEEEA QYKKAFSAVD TDGNGTINAQ ELGAALKATG KNLSEAQLRK LISEVDSDGD GEISFQEFLT AAKKARAGLE DLQVAFRAFD QDGDGHITVD ELRRAMAGLG QPLPQEELDA MIREADVDQD GRVNYEEFAR MLAQE.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
Inhibin a HumanDescription:
Inhibin Alpha Human Recombinant
Product # :
HOR-303Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
Inhibin-Alpha Human Recombinant produced in E.Coli is a non-glycosylated, polypeptide chain containing 264 amino acids comprising of both A and B chains, having a molecular mass of 33.5 kDa.The Inhibin-Alpha is fused with an amino-terminal hexahistidine tag. The Inhibin-Alpha is purified by standard chromatographic techniques.
Source
Escherichia Coli.
Formulation
Inhibin-A alpha chain is supplied in 20mM Tris and 50% glycerol.
Purity
Greater than 95.0% as determined by SDS-PAGE analysis.
More Info
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Introduction
Inhibins are dimeric peptide hormones produced by female ovarian granulose cells and male Sertoli cells as well as a variety of other tissues. Inhibins have two isoforms, A and B, with the same alpha subunit but different beta subunits. Inhibin A is a dimer of alpha and beta A subunits, inhibin B is a dimer of alpha and beta B subunits.
Inhibins are thought to inhibit the production of follicle-stimulating hormone (FSH) by the pituitary gland. In addition, Inhibins are also thought to play a role in the control of gametogenesis, and embryonic and fetal development. -
Physical Appearance
Sterile Filtered clear solution.
-
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.Please avoid freeze thaw cycles.
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Amino Acid Sequence
Alpha chain:
STPLMSWPWSPSALRLLQRPPEEPAAHANCHRVALNISFQELGWERWIVYPPSFIFHYCHGGCGLHIP PNLSLPVPGAPPTPAQPYSLLPGAQPCCAALPGTMRPLHVRTTSDGGYSFKYETVPNLLTQHCACI.
Beta Chain:
GLECDGKVNICCKKQFFVSFKDIGWNDWIIAPSGYHANYCEGECPSHIAGTSGSSLSFHSTVINHYRMR
GHSPFANLKSCCVPTKLRPMSMLYYDDGQNIIKKDIQNMIVEECGCS.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Leptin tA Human, PEGDescription:
Leptin Antagonist Triple Mutant Human Recombinant, Pegylated
Product # :
CYT-702Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- biological activity
- More Info
Description
Pegylated Leptin Antagonist Triple Mutant Human Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a molecular weight of 35.6kDa, Leptin was mutated, resulting in L39A/D40A/F41A. However due to enlarged hydrodymanic volume it runs on the SDS-PAGE as 48 kDa protein and in gel-filtration on Superdex 200 as over 200 kDa protein. Leptin Antagonist Triple Mutant Human Recombinant is Mono-Pegylated with 20kDa PEG and was purified by proprietary chromatographic techniques.
Source
Escherichia coli.
Formulation
The protein was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.
Purity
Greater than 98.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.Biological Activity
Capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Its in vitro activity is 6-8 fold lower than the non-pegylated antagonist but in vivo it has profound weight gain effect (as compared to the non-pegylated antagonist), resulting mainly from increased food intake. Its in vivo activity compared to that of PEG-MLA is 9-27 fold higher.More Info
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Physical Appearance
White lyophilized (freeze-dried) powder.
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Stability
Lyophilized PEG-SHLA although stable at room temperature for several weeks, should be stored desiccated below - 20C. Upon reconstitution at > 0.1 mg/ml and up to 2 mg/ml of PEG-SHLA and filter sterilization mLEP mutant can be stored at 4C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Leptin Antagonist Triple Mutant pegylated Human Recombinant in sterile 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Protein content
Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.88 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
GLP 1 HumanDescription:
Human Glucagon Like Peptide-1
GLP1, Glucagon Like Peptide-1, Incretin hormone.
Product # :
HOR-284Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- formulation
- purity
- More Info
Description
Glucagon Like Peptide-1 is a single, non-glycosylated, polypeptide chain containing 30 amino acids and having a molecular mass of 3297.7 Dalton.The GLP-1 is purified by proprietary chromatographic techniques.
Formulation
The GLP-1 peptide was lyophilized with no additives.
Purity
Greater than 96.0% as determined by RP-HPLC.
More Info
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Introduction
Glucagon-like peptide-1 (GLP-1) is derived from the transcription product of the proglucagon gene. The major source of GLP-1 in the body is the intestinal L cell that secretes GLP-1 as a guthormone. The biologically active forms of GLP-1 are: GLP-1-(7-37) and GLP-1-(7-36)NH2.
GLP-1 secretion by L cells is dependent on the presence of nutrients in the lumen of the small intestine. The secretagogues (agents that causes or stimulates secretion) of this hormone include major nutrients like carbohydrate, proteinand lipid. Once in the circulation, GLP-1 has a half life of less than 2 minutes, due to rapid degradation by the enzyme dipeptidyl peptidase-4.
GLP-1 possesses several physiological properties that make it a subject of intensive investigation as a potential treatment of diabetes mellitus. The known physiological functions of GLP-1 include: Increases insulin secretion from the pancreas in a glucose-dependent manner, decreases glucagon secretion from the pancreas, increases beta cells mass and insulin gene expression, inhibits acid secretion and gastric emptying in the stomach, decreases food intake by increasing satiety. -
Synonyms
GLP1, Glucagon Like Peptide-1, Incretin hormone.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
-
Stability
Lyophilized Glucagon Like Peptide-1 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution GLP-1 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
-
Solubility
It is recommended to reconstitute the lyophilized Glucagon Like Peptide-1 in sterile H2O at 0.5mg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
H-His-Ala-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala-Lys-Glu-Phe-Ile-Ala-Trp-Leu-Val-Lys-Gly-Arg-NH2.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Prelamin-ADescription:
Prelamin-A Recombinant
Prelamin-A/C, LMNA, LMN1, FPL, IDC, LFP, CDDC, EMD2, FPLD, HGPS, LDP1, LMNC, PRO1, CDCD1, CMD1A, FPLD2, LMNL1, CMT2B1, LGMD1B.
Product # :
PRO-689Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
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- source
- formulation
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- More Info
Description
Recombinant Prelamin-A is a 74kDa precursor of the nuclear lamin A protein. Prelamin-A is a structural component of the nuclear lamina and it is encoded by lamin A/C gene (LMNA). Due to the presence of a CAAX box sequence at carboxyl terminus, Prelamin-A in vivo goes through a serial of post-translational modifications, resulting in the farnesylation of the cysteine thiol, removal of the AAX tripeptide, carboxyl-methylation of the cysteinyl carboxy group and proteolysis of 18 C-terminal amino acids residues that lead to mature lamin A. Diverse mutations in the lamin A/C gene are associated with different deseases that are collectively called laminophaties, including Emery-Dreifuss muscular dystrophy, familial partial lipodystrophy, limb girdle muscular dystrophy, dilated cardiomyopathy, Charcot-Marie-Tooth disease, and Hutchinson-Gilford progeria syndrome. Recombinant human prelamin A is fused to a 6 Histidine tag at the N-terminus.
Source
Escherichia Coli.
Formulation
The Prelamin-A solution (0.1mg/ml) contains 10% Glycerol.
Purity
Greater than 90% as determined by SDS-PAGE.
More Info
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Synonyms
Prelamin-A/C, LMNA, LMN1, FPL, IDC, LFP, CDDC, EMD2, FPLD, HGPS, LDP1, LMNC, PRO1, CDCD1, CMD1A, FPLD2, LMNL1, CMT2B1, LGMD1B.
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Physical Appearance
Sterile filtered colorless solution.
-
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
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Amino Acid Sequence
HHHHHH-METPSQRRATRSGAQASSTPLSPTRITRLQEKEDLQELNDRLAVYIDRVHSLETENAGLRLRITES
EEVVSREVSGIKAAYEAELGDARKTLDSVAKERARLQLELSKVREEFKELKARNTKKEGDLIAAQA
RLKDLEALLNSKEAALSTALSEKRTLEGELHDLRGQVAKLEAALGEAKKQLQDEMLRRVDAENRL
QTMKEELDFQKNIYSEELRETKRRHETRLVEIDNGKQREFESRLADALQELRAQHEDQVEQYKKE
LEKTYSAKLDNARQSAERNSNLVGAAHEELQQSRIRIDSLSAQLSQLQKQLAAKEAKLRDLEDSLA
RERDTSRRLLAEKEREMAEMRARMQQQLDEYQELLDIKLALDMEIHAYRKLLEGEEERLRLSPSP
TSQRSRGRASSHSSQTQGGGSVTKKRKLESTESRSSFSQHARTSGRVAVEEVDEEGKFVRLRN
KSNEDQSMGNWQIKRQNGDDPLLTYRFPPKFTLKAGQVVTIWAAGAGATHSPPTDLVWKAQNT
WGCGNSLRTALINSTGEEVAMRKLVRSVTVVEDDEDEDGDDLLHHHHGSHCSSSGDPAEYNLRS
RTVLCGTCGQPADKASASGSGAQVGGPISSGSSASSVTVTRSYRSVGGSGGGSFGDNLVTRSYL
LGNSSPRTQSPQNCSIM
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
CAMP HumanDescription:
Cathelicidin Antimicrobial Peptide Human Recombinant
CAP-18, CAP18, CRAMP, FALL-39, FALL39, HSD26, LL37, 18 kDa cationic antimicrobial protein, FALL-39 peptide antibiotic, Cathelicidin antimicrobial peptide.
Product # :
PRO-1405Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- source
- formulation
- purity
- More Info
Description
CAMP Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 163 amino acids (34-173 a.a.) and having a molecular mass of 18.4kDa.CAMP is fused to a 23 amino acid His-tag at N-terminus.
Source
Escherichia Coli.
Formulation
CAMP protein solution (0.5mg/ml) contains 20mM Tris-HCl buffer (pH 8.0), 0.4M UREA and 10% glycerol.
Purity
Greater than 85.0% as determined by SDS-PAGE.
More Info
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Introduction
CAMP belongs to the antimicrobial peptide family, contains highly conserved N-terminal signal peptide, a cathelin domain and a structurally variable cationic antimicrobial peptide that produced by extracellular proteolysis from the C-terminus. CAMP has numerous functions besides the antimicrobial activity such as: cell chemotaxis, immune mediator induction and inflammatory response regulation.
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Synonyms
CAP-18, CAP18, CRAMP, FALL-39, FALL39, HSD26, LL37, 18 kDa cationic antimicrobial protein, FALL-39 peptide antibiotic, Cathelicidin antimicrobial peptide.
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Physical Appearance
Sterile Filtered clear solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
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Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSQVLSYKE AVLRAIDGIN QRSSDANLYR LLDLDPRPTM DGDPDTPKPV SFTVKETVCP RTTQQSPEDC DFKKDGLVKR CMGTVTLNQA RGSFDISCDK DNKRFALLGD FFRKSKEKIG KEFKRIVQRI KDFLRNLVPR TES.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
DSIPDescription:
Delta Sleep Inducing Peptide
Product # :
HOR-030Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
DSIP Synthetic is a single, non-glycosylated polypeptide chain containing 15 amino acids, having a molecular mass of 1419.55 Dalton and a Molecular formula of C62H98N16O22.
Formulation
The protein was lyophilized with no additives.
Purity
Greater than 97.0% as determined by analysis by RP-HPLC.
More Info
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized DSIP although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution DSIP should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized DSIP in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
H-Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val-OH
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Background
Delta Sleep-Inducing Peptide (DSIP), also known as Sleep-Promoting Peptide, is a neuropeptide that has been the subject of extensive research due to its potential role in sleep regulation, stress response, and neuroprotection. This nonapeptide, first isolated from the cerebral venous blood of rabbits during sleep, has been shown to induce slow-wave sleep, modulate pain perception, and exhibit potential antioxidant and immunomodulatory properties.
DSIP's primary function is its interaction with the sleep regulatory system. By modulating the release of certain neurotransmitters, DSIP can influence sleep patterns, particularly promoting slow-wave sleep, the most restorative stage of sleep. Studies by Kovalzon et al. (2011) have demonstrated that DSIP can enhance sleep quality in rats, suggesting potential applications in sleep disorders and the promotion of healthy sleep patterns.
In addition to its sleep-inducing effects, DSIP has been shown to possess neuroprotective properties. Research by Zolotarev et al. (2014) found that DSIP could protect neurons from oxidative stress, suggesting potential applications in the treatment of neurodegenerative diseases such as Alzheimer's and Parkinson's disease.
Given its sleep-inducing and neuroprotective effects, DSIP has been proposed as a potential therapeutic agent for a variety of conditions, including sleep disorders, chronic pain, and neurodegenerative diseases. For instance, a study by Spong et al. (2016) found that DSIP could improve sleep quality in patients with chronic insomnia, indicating its potential as a therapeutic agent in the treatment of sleep disorders.
While research on DSIP is promising, it is important to note that most studies have been conducted in animals or in vitro. More research is needed to fully understand the potential effects and applications of DSIP in humans. However, the existing body of research suggests that DSIP could be a promising tool in the treatment of sleep disorders, chronic pain, and neurodegenerative diseases.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
Leptin BovineDescription:
Leptin Bovine Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-502Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- biological activity
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Description
Leptin Bovine Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 146 amino acids and having a molecular mass of 16 kDa.The Leptin is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The protein was lyophilized from a concentrated (1mg/ml) solution with 0.02% NaHCO3.
Purity
Greater than 98.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.Biological Activity
Biological active as evidenced by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor.More Info
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Introduction
A 16-kDa peptide hormone secreted from white adipocytes and implicated in the regulation of food intake and energy balance. Leptin provides the key afferent signal from fat cells in the feedback system that controls body fat stores.
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Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Leptin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Leptin should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Leptin in sterile 0.4% NaHCO3 not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Val-Pro-Ile-Arg.
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Protein content
Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.2 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.