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398 results found for “relaxin”
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Name :
Leptin RabbitDescription:
Leptin Rabbit Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-507Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
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Description
Leptin Rabbit 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) Analysis by SEC-HPLC.
(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 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 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 0.505 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.
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Name :
Leptin tA Rat, PEGDescription:
Leptin Antagonist Triple Mutant Pegylated Rat Recombinant
Product # :
CYT-567Price :
Quantity :
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Shipped at Room temp
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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.
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Name :
CRHBP (22-322), HumanDescription:
Corticotropin Releasing Hormone Binding Protein (22-322 a.a.) Human Recombinant
Corticotropin releasing hormone binding protein, CRF-BP, CRH-BP, CRF-binding protein.
Product # :
HOR-025Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
CRHBP Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 324 amino acids (22-322 a.a) and having a molecular mass of 36.1kDa.CRHBP is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
CRHBP protein (1mg/ml) contains 10% glycerol, 0.4M urea and 20mM Tris-HCl buffer (pH 8.0).
Purity
Greater than 85.0% as determined by SDS-PAGE.
More Info
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Introduction
Corticotropin Releasing Hormone Binding Protein or CRHBP is a hormone that stimulates the preopiomelanocortin-derived peptides secretion & synthesis. In general, the levels of CRHBP in the human plasma are relatively low. There are times when we can find high levels of the hormone, mainly in pregnancy, after parturition the levels drop back, the high levels are thought to be derived from the placenta. CRH-binding protein can be found in the plasma, this protein inactivates CRH, in order to avoid inappropriate pituitary-adrenal stimulation during gestation.
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Synonyms
Corticotropin releasing hormone binding protein, CRF-BP, CRH-BP, CRF-binding protein.
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Physical Appearance
Sterile Filtered colorless 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 MGSESRYLEL REAADYDPFL LFSANLKREL AGEQPYRRAL RCLDMLSLQG QFTFTADRPQ LHCAAFFISE PEEFITIHYD QVSIDCQGGD FLKVFDGWIL KGEKFPSSQD HPLPSAERYI DFCESGLSRR SIRSSQNVAM IFFRVHEPGN GFTLTIKTDP NLFPCNVISQ TPNGKFTLVV PHQHRNCSFS IIYPVVIKIS DLTLGHVNGL QLKKSSAGCE GIGDFVELLG GTGLDPSKMT PLADLCYPFH GPAQMKVGCD NTVVRMVSSG KHVNRVTFEY RQLEPYELEN PNGNSIGEFC LSGL
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 Rat, PEGDescription:
Pegylated Rat Leptin Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-592Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Mono-Pegylated Leptin Rat Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 146 amino acids and an additional Ala at N-terminus having a molecular mass of 35.6 kDa (with 20 kDa PEG) as determined by mass spectometry. 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 100 kDa protein. Its half-life in circulation after SC injection was over 20 hours. Rat Leptin was purified by proprietary chromatographic techniques according to Salomon et al (2006) Protein Expression and Purification 47, 128–136 and then pegylated.
Source
Escherichia Coli.
Formulation
The protein was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.
Purity
Greater than 99.0% as determined by:
(a) Analysis by Gel-Filtration.
(b) Analysis by SDS-PAGE.Biological Activity
Pegylated Rat Leptin is capable of stimulatng 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 antagonist but in vivo it has profound weight reducing effect (as compared to the non-pegylated leptin), resulting mainly from reduced food intake.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 pegylated Rat Leptin Antagonist although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution of pegylated Rat Leptin at > 0.1 mg/ml and up to 2 mg/ml and filter sterilization Rat leptin 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 pegylated Rat Leptin in sterile water or in sterile 0.4% NaHCO3 adjusted to pH-8.5, 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 :
Leptin tA Human, PEGDescription:
Leptin Antagonist Triple Mutant Human Recombinant, Pegylated
Product # :
CYT-702Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
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- source
- formulation
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- biological activity
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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.
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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 :
LypressinDescription:
Lypressin
Product # :
HOR-278Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Lypressin is a hormone used to prevent or control the frequent urination, increased thirst, and loss of water associated with diabetes insipidus (water diabetes). Its molecular weight is 1056.2 Dalton having an amino acid sequence of Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Lys-Gly-NH2. The Molecular Formula is: C46H65N13O12S2. The CAS Number is: 50-57-7.
Formulation
The protein (1mg/ml) was lyophilized with no additives.
Purity
Greater than 99.0% as determined by RP-HPLC.
More Info
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Store the lyophilized Lypressin between 2-8°C, do not freeze. Upon reconstitution Lypressin should be stored at 4°C between 2-7 days and for future use below -18°C. Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Lypressin in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Lypressin is also soluble in 1% Acetic Acid.
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 :
PramlintideDescription:
Pramlintide
Product # :
HOR-300Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Pramlintide Synthetic is a single, non-glycosylated polypeptide chain containing 37 amino acids, having a molecular mass of 3949.4 Dalton and a Molecular formula of C171H267N51O53S2.
Formulation
The protein 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
Pramlintide acetate is a hormone that is released into the bloodstream, in a similar pattern as insulin. Pramlintide aids in the absorption of glucose by slowing gastric emptying, promoting satiety, and inhibiting inappropriate secretion of glucagon, a catabolic hormone that opposes the effects of insulin.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Pramlintide although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Pramlintide 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 Pramlintide in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions. The Pramlintide is also soluble in 1% Acetic Acid.
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Amino Acid Sequence
KCNTATCATNRLANFLVHSSNNFGPILPPTNVGSNTY-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 :
Leptin qA HumanDescription:
Leptin Antagonist Quadruple Mutant Human Recombinant
Product # :
CYT-353Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Leptin Quadruple Mutant Human Recombinant is a single polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a Mw of 16 kDa, Human Leptin was mutated, resulting in L39A/D40A/F41A/I42A.Leptin Antagonist Quadruple Mutant 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 Quadruple Antagonist Mutant is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transected 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.
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Stability
Lyophilized Leptin Antagonist Quadruple Mutant 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 Quadruple Mutant 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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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 0.89 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 Receptor ChickenDescription:
Leptin Receptor Chicken Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor, Leptin Receptor.
Product # :
CYT-509Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
Leptin Binding Domain Chicken Recombinant also called Leptin Receptor produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 208 amino acids and having a molecular mass of 24.5 kDa. Chicken Leptin Receptor consists of the cytokine binding domain of leptin receptor amino acids 420-626 of chicken leptin receptor.The Leptin Binding Domain is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The protein was filter sterilized and stored at 4°C (0.2 to 0.5 mg/ml) solution of Tris-HCl buffer, pH 9.0 with 150mM NaCl.
Purity
Greater than 99.0% as determined by:
(a) Analysis by SEC-HPLC.
(b) Analysis by SDS-PAGE.More Info
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Introduction
Leptin Receptor is a part of the gp130 family of cytokine receptors that stimulate gene transcription by activating cytosolic STAT proteins. Leptin Receptor plays a role in the regulation of fat metabolism and in novel hematopoietic pathway that is obligatory for normal lymphopoiesis. Leptin Receptorparticipates in the regulation of counter-regulatory response to hypoglycemia by inhibiting neurons of the parabrachial nucleus.Leptin Receptoraffectsspecifically on T lymphocyte responses.
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Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor, Leptin Receptor.
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Physical Appearance
Sterile Filtered colorless solution at a concentration of 0.4 mg/ml.
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Stability
Sterile solutions at 0.5mg/ml or less are stable at 4°C for several months.
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Amino Acid Sequence
The sequence of the first six N-terminal amino acids was determined and was found to be Ala-Ile-Asp-Val-Asn-Ile Biological ActivityBiological Activity is evidenced by high affinity binding of mammalian leptins at 1:1 molar ratio.
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Protein content
Protein quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbency value of 2.45 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). 2. Analysis by RP-HPLC, using a calibrated solution of Leptin Binding Domain as a Reference Standard.
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 :
CIAPIN1 HumanDescription:
Cytokine Induced Apoptosis Inhibitor 1 Human Recombinant
DRE2, PRO0915, Anamorsin, Cytokine-induced apoptosis inhibitor 1, Fe-S cluster assembly protein DRE2 homolog, CIAPIN1.
Product # :
PRO-024Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
CIAPIN1 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 335 amino acids (1-312 a.a.) and having a molecular mass of 36kDa.CIAPIN1 is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
CIAPIN1 protein solution (1mg/ml) contains 20mM Tris-HCl buffer (pH 8.0), 0.4M Urea and 10% glycerol.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
Anamorsin, ( CIAPIN) is a member of anamorsin family. CIAPIN mainly expressed in the cytoplasm of liver, pancreas and heart tissue cells and does not show any homology to known apoptosis regulatory molecules of the Bcl-2 or CASP families, or to signal transduction molecules. CIAPIN1 Expression is reliant on growth factor stimulation. It is a ubiquitously expressed protein, and when it is overexpressed, it grants apoptotic resistance.
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Synonyms
DRE2, PRO0915, Anamorsin, Cytokine-induced apoptosis inhibitor 1, Fe-S cluster assembly protein DRE2 homolog, CIAPIN1.
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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 MGSMADFGIS AGQFVAVVWD KSSPVEALKG LVDKLQALTG NEGRVSVENI KQLLQSAHKE SSFDIILSGL VPGSTTLHSA EILAEIARIL RPGGCLFLKE PVETAVDNNS KVKTASKLCS ALTLSGLVEV KELQREPLTP EEVQSVREHL GHESDNLLFV QITGKKPNFE VGSSRQLKLS ITKKSSPSVK PAVDPAAAKL WTLSANDMED DSMDLIDSDE LLDPEDLKKP DPASLRAASC GEGKKRKACK NCTCGLAEEL EKEKSREQMS SQPKSACGNC YLGDAFRCAS CPYLGMPAFK PGEKVLLSDS NLHDA.
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 :
LGMN MouseDescription:
Legumain Mouse Recombinant
Legumain, Asparaginyl endopeptidase, Protease, cysteine 1.
Product # :
ENZ-933Price :
Quantity :
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Shipped with Ice Packs
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- sds-page
Description
LGMN produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 426 amino acids (18-435a.a.) and having a molecular mass of 48.6kDa. LGMN is expressed with an 8 amino acid His tag at C-Terminus and purified by proprietary chromatographic techniques.
Source
Sf9, Baculovirus cells.
Formulation
LGMN protein solution (0.5mg/ml) contains Phosphate Buffered Saline (pH 7.4) and 10% glycerol.
Purity
Greater than 90.0% as determined by SDS-PAGE.
sds-page
More Info
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Introduction
Legumain, also known as LGMN is a lysosomal cysteine protease which is found in all mouse tissues, however it was mainly abundant in the kidney as well as placenta. LGMN plays an essential role in the endosomal/lysosomal degradation system as the Legumain deficiency causes the accumulation of pro cathepsins B, H & L, another group of lysosomal cysteine proteases. Furthermore, over expression of LGMN in tumors is important for invasion/metastasis.
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Synonyms
Legumain, Asparaginyl endopeptidase, Protease, cysteine 1.
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Physical Appearance
Sterile filtered colorless 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
VPVGVDDPED GGKHWVVIVA GSNGWYNYRH QADACHAYQI IHRNGIPDEQ IIVMMYDDIA NSEENPTPGV VINRPNGTDV YKGVLKDYTG EDVTPENFLA VLRGDAEAVK GKGSGKVLKS GPRDHVFIYF TDHGATGILV FPNDDLHVKD LNKTIRYMYE HKMYQKMVFY IEACESGSMM NHLPDDINVY ATTAANPKES SYACYYDEER GTYLGDWYSV NWMEDSDVED LTKETLHKQY HLVKSHTNTS HVMQYGNKSI STMKVMQFQG MKHRASSPIS LPPVTHLDLT PSPDVPLTIL KRKLLRTNDV KESQNLIGQI QQFLDARHVI EKSVHKIVSL LAGFGETAER HLSERTMLTA HDCYQEAVTH FRTHCFNWHS VTYEHALRYL YVLANLCEAP YPIDRIEMAM DKVCLSHYLE HHHHHH.
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 Human, HisDescription:
Leptin Human Recombinant, His Tag
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-287Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Leptin Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing amino acids 48-167 and having a total molecular mass of 19 kDa including the 4 kDa His tag.The Leptin is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The protein was lyophilized from a concentrated (1mg/ml) solution with 1X PBS, 0.1% SDS and 1mM DTT.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
Leptin is a protein hormone with important effects in regulating body weight, metabolism and reproductive function. The protein is approximately~16 kDa in mass and encoded by the obese (ob)gene. leptin is expressed predominantly by adipocytes, which fits with the idea that body weight is sensed as the total mass of fat in the body. Smaller amounts of leptin are also secreted by cellsin the epithelium of the stomach and in the placenta. Leptin receptors are highly expressed in areas of the hypothalamus known to be important in regulating body weight, as well as in T lymphocytes and vascular endothelial cells.
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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, should be stored desiccated below 0°C. Reconstituted Leptin is best stored refrigerated at 4°C.Please avoid freeze-thaw cycles.
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Solubility
The lyophilized Leptin is very soluble in water and most aqueous buffers below and above the isoelectric point.
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 :
ElcatoninDescription:
Elcatonin
Product # :
HOR-302Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Elcatonin Synthetic is a single, non-glycosylated polypeptide chain containing 31 amino acids, having a molecular mass of 3363.2 Dalton and a Molecular formula of C148H244N42O47.
Formulation
The protein was lyophilized with no additives.
Purity
Greater than 93.3% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.Biological Activity
Biological Activity (based on net peptide) was found to be 6695.2 IU/mg.More Info
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Introduction
Elcatonin is a Calcitonin derivative which is transformed from eel´s calcitonin by changing the S-S bond into the stable C-N bond. It inhibits the absorption and autolysis of bones, thus leads to blood calcium descending. In addition, it inhibits the bone salts dissolving and transferring and promotes the excretion of calcium and phosphorus in urine. Meanwhile, it inhibits renal tubules reabsorbing calcium, phosphorus and sodium and keeps blood calcium at normal level. It is mainly used for remitting or eliminating the pain caused by Osteoporosis.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Elcatonin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Elcatonin 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 Elcatonin 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
Ser-Asn-Leu-Ser-Thr-Asu-Val-Leu-Gly-Lys-Leu-Ser-Gln-Glu-Leu-His-Lys-Leu-Gln-Thr-Tyr-Pro-Arg-Thr-Asn-Val-Gly-Ala-Gly-Thr-Pro-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.
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Name :
DSIPDescription:
Delta Sleep Inducing Peptide
Product # :
HOR-030Price :
Quantity :
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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 :
HexarelinDescription:
Hexarelin
Product # :
HOR-288Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Hexarelin has 7 amino acids H-His-D-2-Methyl-Trp-Ala-Trp-D-Phe-Lys-NH2 and having a molecular weight of 887 Dalton. The Molecular Formula is C47H58N12O6.
Formulation
The Hexarelin peptide 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
Hexarelin stimulates GH secretion. Hexarelin is more resistant to proteolytic degradation than GHRP-6.
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Physical Appearance
Sterile Filtered lyophilized (freeze-dried) powder.
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Stability
Lyophilized Hexarelin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Hexarelin 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 Hexarelin 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.
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Name :
TesamorelinDescription:
Tesamorelin
Product # :
HOR-062Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Tesamorelin is a synthetic single, non-glycosylated polypeptide chain containing 44 amino acids, having a molecular mass of 5135.78 Dalton and a Molecular formula of C221H366N72O67S.
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 Tesamorelin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Tesamorelin 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 Tesamorelin 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
trans-3-hexenoyl-Tyr-Ala-Asp-Ala-IlePhe-Thr-Asn-Ser-Tyr-Arg-Lys-Val-Leu-Gly-Gln-Leu-Ser-Ala-Arg-LysLeu-Leu-Gln-Asp-Ile-Met-Ser-Arg-Gln-Gln-Gly-Glu-Ser-Asn-Gln-GluArg-Gly-Ala-Arg-Ala-Arg-Leu-NH2.
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Background
Tesamorelin is a growth hormone-releasing hormone (GHRH) analogue. Tesamorelin stimulates the pituitary gland to produce endogenous growth hormone, which targets visceral adipose tissue. Tesamorelin has evolved from a HIV treatment into an effective metabolic and regenerative therapy.
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 :
ANXA1 HumanDescription:
Annexin A1 Human Recombinant
ANX1, LPC1, ANXA1, Lipocortin I, Calpactin II, Chrombindin-9, p35, Annexin-1, Phospholipase A2 inhibitory protein, Annexin I, Annexin A1.
Product # :
PRO-679Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
ANXA1 produced in E.Coli is a single, non-glycosylated polypeptide chain containing 346 amino acids (1-346 a.a.) and having a molecular mass of 38.7 kDa.ANXA1 is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The ANXA1 protein solution contains 20mM Tris-HCl, pH-8, 100mM NaCl, 1mM DTT and 10% glycerol.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
ANXA1 is part of the family of Ca(2+)-dependent phospholipid binding proteins which have a Mw between 35kDa-40kDa and are situated on the cytosolic face of the plasma membrane. ANXA1 protein has a Mw of 40kDa, with phospholipase A2 inhibitory activity to bind from two to four calcium ions with high affinity. Since phospholipase A2 is necessary for the biosynthesis of the potent mediators of inflammation, prostaglandins and leukotrienes, ANXA1 might have potential anti-inflammatory activity. ANXA1 promotes membrane fusion and iplays a role in exocytosis. The recognition of ANXA1 protein by immunocytochemical leads a simple, highly sensitive and specific assay for diagnosis of hairy cell leukemia.
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Synonyms
ANX1, LPC1, ANXA1, Lipocortin I, Calpactin II, Chrombindin-9, p35, Annexin-1, Phospholipase A2 inhibitory protein, Annexin I, Annexin A1.
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Physical Appearance
Sterile filtered colorless 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
MAMVSEFLKQ AWFIENEEQE YVQTVKSSKG GPGSAVSPYP TFNPSSDVAA LHKAIMVKGV DEATIIDILT KRNNAQRQQI KAAYLQETGK
PLDETLKKAL TGHLEEVVLA LLKTPAQFDA DELRAAMKGL GTDEDTLIEI LASRTNKEIR DINRVYREEL KRDLAKDITS DTSGDFRNAL
LSLAKGDRSE DFGVNEDLAD SDARALYEAG ERRKGTDVNV FNTILTTRSY PQLRRVFQKY TKYSKHDMNK VLDLELKGDI EKCLTAIVKCATSKPAFFAE KLHQAMKGVG TRHKALIRIM VSRSEIDMND IKAFYQKMYG ISLCQAILDE TKGDYEKILV ALCGGN.
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 :
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
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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.
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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.
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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.
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Name :
Leptin qA Mouse, AntagonistDescription:
Leptin Quadruple Antagonist Mouse Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-1257Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Leptin Quadruple Antagonist Mouse Recombinant is a single non-glycosilated polypeptide chain containing 146 amino, an additional Ala at N-terminus and having a molecular mass of ~ 16 kDa. The Leptin antagonist was mutated, resulting in D23L/L39A/D40A/F41A mutant. Leptin Quadruple Antagonist Mouse Recombinant was purified by proprietary chromatographic techniques.
Source
Escherichia coli.
Formulation
The Mouse Leptin Quadruple anatagonist 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
Leptin Quadruple Antagonist Mouse Recombinant is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Mouse Leptin Quadruple Antagonist also inhibits various leptin effects in several in vitro bioassays. The inhibitory activity of Mouse Leptin Quadruple Antagonist was increased 14 to 60 fold as measured by various criteria such as binding properties to human leptin binding domain and in vitro and in vivo bioassays as compared to mouse leptin antagonist.
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 Leptin Antagonist Quadruple 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 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 Leptin Antagonist Quadruple Mouse 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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Amino Acid Sequence
The sequence of the first five N-terminal amino acids of mouse super-active leptin antagonist was determined and was found to be Ala-Val-Pro-Ile-Gln.
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Background
Leptin is produced by adipocytes and its main part is to regulate long-term energy balance. Leptin is encoded by the LEP gene and 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 behaviours 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.
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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.
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Name :
Leptin ChickenDescription:
Leptin Chicken Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-505Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Leptin Chicken Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 145 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 0.0045mM NaHCO3.
Purity
Greater than 95.0% as determined by:
(a) Analysis by SEC-HPLC.
(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. Its activity is however 5-10 fold lower as compared to mammalian leptins.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 18MΩ-cm H2O 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-Cys-Gln.
Recombinant Chicken leptin was produced according to the a.a. sequence published by the groups of Taouis & McMutry, see Raver et al. Protein Expr Purif. 1998 Dec; 14(3):403-8.
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Protein content
Protein quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbency value of 0.19 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). 2. Analysis by RP-HPLC,using calibrated solution of Leptin Chicken as a Reference Standard.
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 :
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.
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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
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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.
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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.
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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
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.
- View Data Sheet
Name :
TerlipressinDescription:
Terlipressin
Product # :
HOR-287Price :
Quantity :
Shipping Method :
Shipped at Room temp
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- description
- formulation
- purity
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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.