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Search results

1000 results found for “Follistatin”

Name

Description

Product #

Price

Quantity

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  • View Data Sheet

    Name :

    PCSK1N Human

    Description:

    Proprotein Convertase Subtilisin/Kexin Type 1 Inhibitor Human Recombinant

    ProSAAS precursor, Proprotein convertase subtilisin/kexin type 1 inhibitor, PROSAAS; SAAS, PCSK1N.

    Product # :

    PRO-1819

    Price :

    Quantity :

    Shipping Method :

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    Shipped with Ice Packs

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    • source
    • formulation
    • purity
    • More Info
    • Citations

    Description

    PCSK1N Human Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 251 amino acids (34-260) and having a molecular mass of 26.6 kDa.PCSK1N is fused to a 23 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    The PCSK1N solution (0.25mg/ml) contains 20mM Tris-HCl buffer (pH 8.0), 10% glycerol and 0.4M Urea.

    Purity

    Greater than 85.0% as determined by SDS-PAGE.

    Citations

    More Info

    • Introduction

      Proprotein Convertase Subtilisin/Kexin Type 1 Inhibitor (PCSK1N) takes part in the control of the neuroendocrine secretory pathway. PCSK1N inhibits prohormone convertase 1, which regulates the proteolytic cleavage of neuroendocrine peptide precursors. PCSK1Nslows down convertase-mediated processing of proopiomelanocortin and proenkephalin and also monitors the intracellular timing of PCSK1.

    • Synonyms

      ProSAAS precursor, Proprotein convertase subtilisin/kexin type 1 inhibitor, PROSAAS; SAAS, PCSK1N.

    • 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.

    • Amino Acid Sequence

      MGSSHHHHHH SSGLVPRGSH MGSMARPVKE PRGLSAASPP LAETGAPRRF RRSVPRGEAA GAVQELARAL AHLLEAERQE RARAEAQEAE DQQARVLAQL LRVWGAPRNS DPALGLDDDP DAPAAQLARA LLRARLDPAA LAAQLVPAPV PAAALRPRPP VYDDGPAGPD AEEAGDETPD VDPELLRYLL GRILAGSADS EGVAAPRRLR RAADHDVGSE LPPEGVLGAL LRVKRLETPA PQVPARRLLP P.

    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.

    Pcsk1N Human
  • View Data Sheet

    Name :

    Resistin Human

    Description:

    Resistin Human Recombinant

    Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.

    Product # :

    CYT-456

    Price :

    Quantity :

    Shipping Method :

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    Shipped at Room temp

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    • Citations

    Description

    Resistin Human Recombinant produced in e.coli is a homodimeric, non-glycosylated, polypeptide chain containing 2 x 93 amino acids and having a total molecular weight of 19.7kDa.The Resistin Human Recombinant protein is purified by standard chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Sterile filtered and lyophilized from 0.1% Trifluoroacetic Acis (TFA).

    Purity

    Greater than 95% as determined by SDS-PAGE.

    Citations

    More Info

    • Introduction

      Resistin, a product of the RSTN gene, is a peptide hormone belonging to the class of cysteine-rich secreted proteins which is termed the RELM family, and is also described as ADSF (Adipose Tissue- Specific Secretory Factor) and FIZZ3 (Found in Inflammatory Zone). Human resistin contains 108 amino acids as a prepeptide, and its hydrofobic signal peptide is cleaved before its secretion. Resistin circulates in human blood as a dimeric protein consisting of two 92 amino acid polypeptides, which are disulfide-linked via Cys26.
      Mouse resistin, specifically produced and secreted by adipocyte, acts on skeletal muscle myocytes, hepatocytes and adipocytes themselves so that it reduces their sensitivity. Steppan et al. have suggested that resistin suppresses the ability to stimulate glucose uptake. They have also suggested that resistin is present at elevated levels in blood of obese mice, and is down regulated by fasting and antidiabetic drugs. Way et al., on the other hand, have found that resistin expression is severly suppressed in obesity and is stimulated by several antidiabetic drugs.
      Other studies have shown that mouse resistin increases during the differentiation of adipocytes, but it also seems to inhibit adipogenesis. In contrast, the human adipogenic differentiation is likely to be associated with a down regulation of resistin gene expression.

    • Synonyms

      Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.

    • Physical Appearance

      Filtered White lyophilized (freeze-dried) powder.

    • 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.

    • Solubility

      It is recommended to reconstitute the lyophilized Resistin in sterile 18MΩ-cm H2O at a concentration of 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      MSSKTLCSME EAINERIQEV AGSLIFRAIS SIGLECQSVT SRGDLATCPR GFAVTGCTCG SACGSWDVRA ETTCHCQCAG MDWTGARCCR VQP

    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.

    Resistin Human
  • View Data Sheet

    Name :

    Resistin Human, HEK

    Description:

    Resistin Human Recombinant, HEK

    RETN,ADSF,FIZZ3,RETN1,RSTN,XCP1,resistin precursor, Adipose tissue-specific secretory factor, ADSFMGC126609, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, Cysteine-rich secreted protein FIZZ3, FIZZ3; FIZZ3MGC126603, found in inflammatory zone 3, HXCP1.

    Product # :

    CYT-1183

    Price :

    Quantity :

    Shipping Method :

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    Shipped with Ice Packs

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    More Info

    • description
    • source
    • formulation
    • purity
    • More Info
    • Citations

    Description

    Resistin Human Recombinant produced in HEK293 cells is a single, glycosylated polypeptide chain (19-108 a.a) containing 96 amino acids and having a molecular mass of 10.3 kDa.Resistin is fused to a 6 amino acid His-tag at C-terminus & purified by proprietary chromatographic techniques.

    Source

    HEK293 cells.

    Formulation

    Resistin protein (1mg/ml) contains 20% glycerol and 20mM Sodium citrate (pH3.0).

    Purity

    Greater than 95.0% as determined by SDS-PAGE.

    Citations

    More Info

    • Introduction

      Resistin, also known as adipose tissue-specific secretory factor (ADSF) is a cysteine-rich peptide derived from adipose tissue. Resistin takes part in the inflammatory response, glucose metabolism, and angiogenesis.Resistin blocks insulinstimulated uptake of glucose by adipocytes and promote glucose release by hepatocytes. As such,Resistin considered to participate in diet‑induced insulin-sensitivity. Resistin causes high levels of lowdensity lipoprotein (LDL), increasing the risk of heart disease.

    • Synonyms

      RETN,ADSF,FIZZ3,RETN1,RSTN,XCP1,resistin precursor, Adipose tissue-specific secretory factor, ADSFMGC126609, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, Cysteine-rich secreted protein FIZZ3, FIZZ3; FIZZ3MGC126603, found in inflammatory zone 3, HXCP1.

    • 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.

    • Amino Acid Sequence

      KTLCSMEEAI NERIQEVAGS LIFRAISSIG LECQSVTSRG DLATCPRGFA VTGCTCGSAC GSWDVRAETT CHCQCAGMDW TGARCCRVQP 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.

    Resistin Protein
  • View Data Sheet

    Name :

    Resistin Human, His

    Description:

    Resistin Human Recombinant, His Tag

    Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.

    Product # :

    CYT-256

    Price :

    Quantity :

    Shipping Method :

    Ice Icon

    Shipped with Ice Packs

    Add To Cart

    More Info

    • description
    • source
    • formulation
    • purity
    • More Info
    • Citations

    Description

    Resistin Human Recombinant produced in E.Coli is a single, non-glycosylated, Polypeptide chain containing a 92 amino acids fragment (17-108) of the mature Human Resistin, having a total molecular mass of 14.23kDa and fused with a 4.5kDa amino-terminal hexahistidine tag. The Resistin is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Resistin protein solution is supplied in 20mM Tris-HCl pH 8.0, 5mM EDTA and 50% glycerol.

    Purity

    Greater than 95% as determined by SDS-PAGE.

    Citations

    More Info

    • Introduction

      Resistin, a product of the RSTN gene, is a peptide hormone belonging to the class of cysteine-rich secreted proteins which is termed the RELM family, and is also described as ADSF (Adipose Tissue- Specific Secretory Factor) and FIZZ3 (Found in Inflammatory Zone). Human resistin contains 108 amino acids as a prepeptide, and its hydrofobic signal peptide is cleaved before its secretion. Resistin circulates in human blood as a dimeric protein consisting of two 92 amino acid polypeptides, which are disulfide-linked via Cys26.
      Resistin may be an important link between obesity and insulin resistance. Mouse resistin, specifically produced and secreted by adipocyte, acts on skeletal muscle myocytes, hepatocytes and adipocytes themselves so that it reduces their sensitivity to insulin. Steppan et al. have suggested that resistin suppresses the ability of insulin to stimulate glucose uptake. They have also suggested that resistin is present at elevated levels in blood of obese mice, and is down regulated by fasting and antidiabetic drugs. Way et al., on the other hand, have found that resistin expression is severly suppressed in obesity and is stimulated by several antidiabetic drugs.
      Other studies have shown that mouse resistin increases during the differentiation of adipocytes, but it also seems to inhibit adipogenesis. In contrast, the human adipogenic differentiation is likely to be associated with a down regulation of resistin gene expression.

    • Synonyms

      Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.

    • 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.Please avoid freeze thaw cycles.

    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.

    Resistin Human His
  • View Data Sheet

    Name :

    Resistin Mouse, Flag

    Description:

    Resistin Mouse Recombinant, Flag Tag

    Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.

    Product # :

    CYT-457

    Price :

    Quantity :

    Shipping Method :

    Room Temp Icon

    Shipped at Room temp

    Add To Cart

    More Info

    • description
    • source
    • formulation
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    Description

    Resistin Mouse is manufactured with signal sequence of phage fd (21aa) and C-terminal fusion of flagTag (10aa). Resistin Mouse Recombinant Flag-Tagged Fusion Protein is 13.7 kDa protein containing 93 amino acid residues of the Resistin Mouse and 31 additional amino acid residues - signal sequence of phage fd, flagTag (underlined).

    Source

    Escherichia Coli.

    Formulation

    Filtered (0.4µm) and lyophilized from 0.5 mg/ml in 0.05M Acetate buffer pH-4.

    Purity

    Greater than 95% as determined by SDS-PAGE.

    Citations

    More Info

    • Introduction

      Resistin, a product of the RSTN gene, is a peptide hormone belonging to the class of cysteine-rich secreted proteins which is termed the RELM family, and is also described as ADSF (Adipose Tissue- Specific Secretory Factor) and FIZZ3 (Found in Inflammatory Zone). Human resistin contains 108 amino acids as a prepeptide, and its hydrofobic signal peptide is cleaved before its secretion. Resistin circulates in human blood as a dimeric protein consisting of two 92 amino acid polypeptides, which are disulfide-linked via Cys26.
      Resistin may be an important link between obesity resistance. Mouse resistin, specifically produced and secreted by adipocyte, acts on skeletal muscle myocytes, hepatocytes and adipocytes themselves so that it reduces their sensitivity. They have also suggested that resistin is present at elevated levels in blood of obese mice, and is down regulated by fasting and antidiabetic drugs. Way et al., on the other hand, have found that resistin expression is severly suppressed in obesity and is stimulated by several antidiabetic drugs.
      Other studies have shown that mouse resistin increases during the differentiation of adipocytes, but it also seems to inhibit adipogenesis. In contrast, the human adipogenic differentiation is likely to be associated with a down regulation of resistin gene expression.

    • Synonyms

      Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.

    • Physical Appearance

      Filtered White lyophilized (freeze-dried) powder.

    • 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.

    • Solubility

      It is recommended to add 0.1M Acetate buffer pH4 to prepare a working stock solution of approximately 0.5 mg/mL and let the lyophilized pellet dissolve completely. For conversion into higher pH value, we recommend intensive dilution by relevant buffer to a concentration of 10μg/ml. In higher concentrations the solubility of this antigen is limited. Product is not sterile! Please filter the product by an appropriate sterile filter before using it in the cell culture.

    • Amino Acid Sequence

      MKKLLFAIPL VVPFYSHSTM ASMPLCPIDE AIDKKIKQDF NSLFPNAIKN IGLNCWTVSS RGKLASCPEG TAVLSCSCGS ACGSWDIREE KVCHCQCARI DWTAARCCKL QVASLEDYKD DDDK.

    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.

    Resistin Mouse
  • View Data Sheet

    Name :

    Leptin Super Antagonist Rat

    Description:

    Leptin Super Antagonist Rat Recombinant

    Product # :

    CYT-1240

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    Description

    Super Leptin Antagonist Rat Recombinant is a single polypeptide chain containing 146 amino acids. Super Rat Leptin Antagonist was mutated, resulting in D23L/L39A/D40A/F41A super Rat leptin antagonist 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 Rat leptin antagonist is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Super Rat leptin antagonist also inhibits various leptin effects in several in vitro bioassays.

    Citations

    More Info

    • Physical Appearance

      White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Super Leptin Antagonist although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution of super Rat leptin antagonist at > 0.1 mg/ml and up to 2 mg/ml and filter sterilization super Rat 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.

    • Solubility

      It is recommended to reconstitute the lyophilized Super Leptin Antagonist 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.

    • Amino Acid Sequence

      The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Val-Pro-Ile-His.

    • Background

      Leptin is a hormone which takes part in regulating body weight, metabolism and reproductive function and is encoded by the obese 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 expressed mainly in areas of the hypothalamus which regulates body weight, as well as in T lymphocytes and vascular endothelial cells.

    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.

    Leptin Antagonist Super Rat
  • View Data Sheet

    Name :

    Myostatin Antibody

    Description:

    Myostatin Polyclonal Rabbit Anti Human Antibody

    GDF-8, MSTN, Growth Differentiation Factor 8, MSTN Muscle Hypertrophy.

    Product # :

    ANT-041

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    Formulation

    Lyophilized from 1mg/ml solution in 0.2µm sterile filtered solution in phosphate buffered saline.

    Purity

    Greater than 98.0% as determined by Analysis by SDS-PAGE.

    Citations

    More Info

    • Introduction

      GDF8 is a member of the bone morphogenetic protein (BMP) family and the TGF-beta superfamily. This group of proteins is characterized by a polybasic proteolytic processing site which is cleaved to produce a mature protein containing seven conserved cysteine residues. The members of this family are regulators of cell growth and differentiation in both embryonic and adult tissues. This gene is thought to encode a secreted protein which negatively regulates skeletal muscle growth.

    • Synonyms

      GDF-8, MSTN, Growth Differentiation Factor 8, MSTN Muscle Hypertrophy.

    • Stability

      Store at 4°C. For long term storage freezes in working aliquots at -20°C. Repeated freezing and thawing is not recommended.

    • Solubility

      Reconstitute with H20. Mix gently, wash the sides of the vial and wait 30-60 seconds before use.

    • Immunogen

      r.Human Myostatin

    • Ig Subclass

      Rabbit IgG

    • Applications

      To detect Human Myostatin by WB analysis this IgG can be used in a dilution of 1/500.
      To optimal usage we suggest overnight incubation.

    • Antigen Amino Acid Sequence

      HHHHHHDFGL DCDEHSTESR CCRYPLTVDF EAFGWDWIIA PKRYKANYCS GECEFVFLQKYPHTHLVHQA NPRGSAGPCC TPTKMSPINM LYFNGKEQII YGKIPAMVVD RCGCS

    • Type

      Polyclonal Rabbit Antibody.

    • Purification Method

      Purified IgG prepared by affinity chromatography on protein G.

    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.

    Myostatin Antibody
  • View Data Sheet

    Name :

    Leptin qA Rat, PEG

    Description:

    Leptin Quadruple Antagonist, Pegylated Rat Recombinant

    OB Protein, Obesity Protein, OBS, Obesity factor.

    Product # :

    CYT-1241

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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.

    Citations

    More Info

    • Synonyms

      OB Protein, Obesity Protein, OBS, Obesity factor.

    • Physical Appearance

      White lyophilized (freeze-dried) powder.

    • 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.

    • 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.

    • 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.

    Leptin Rat Peg Qa
  • View Data Sheet

    Name :

    Resistin Rat, His

    Description:

    Resistin Rat Recombinant, His Tag

    Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.

    Product # :

    CYT-458

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    Description

    Resistin Rat Recombinant is manufactured with N-terminal fusion of His tag. Resistin Rat Recombinant His-Tagged Fusion Protein is an 11.9 kDa protein containing 94 amino acid residues of the Resistin Rat and 16 additional amino acid residues – His Tag (underlined).

    Source

    Escherichia Coli.

    Formulation

    Filtered (0.4µm) and lyophilized from 0.5mg/ml in 20mM Tris pH 8.0.

    Purity

    Greater than 95% as determined by SDS-PAGE.

    Citations

    More Info

    • Introduction

      Resistin, a product of the RSTN gene, is a peptide hormone belonging to the class of cysteine-rich secreted proteins (monomeric peptide contains 11 cysteine residues) referred to as the RELM family, and is also described as ADSF (Adipose Tissue-Specific Secretory Factor) or FIZZ3 (Found in Inflammatory Zone 3). Mouse resistin is expressed as a 114 amino acid prepeptide; its hydrofobic Nterminal 20 amino acid signal peptide is cleaved before its secretion. Mouse resistin circulates in blood as a homodimeric protein consisting of two 94 amino acid polypeptides, which are disulfide-linked via Cys26.
      Resistin may be an important link between obesity. Mouse resistin, specifically produced and secreted by adipocyte, acts on skeletal muscle myocytes, hepatocytes and adipocytes themselves so that it reduces their sensitivity. Steppan et al. have suggested that resistin suppressed the ability to stimulate glucose uptake. They have also suggested that resistin was present at elevated levels in blood of obese mice, and was down regulated by fasting and by antidiabetic drugs. Way et al., on the other hand, have found that resistin expression is severely suppressed in obesity.
      Other studies have shown that mouse resistin increases during the differentiation of adipocytes, but it also seems to inhibit adipogenesis. In contrast, the human adipogenic differentiation is likely to be associated with a down regulation of resistin gene expression.

    • Synonyms

      Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.

    • Physical Appearance

      Filtered White lyophilized (freeze-dried) powder.

    • 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.

    • 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.

    • Amino Acid Sequence

      MRGSHHHHHH GMASHMPSMS LCPMDEAISK KINQDFSSLL PAAMKNTVLH CWSVSSRGRL ASCPEGTTVT SCSCGSGCGS WDVREDTMCH CQCGSIDWTA ARCCTLRVGS.

    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.

    Resistin Rat
  • View Data Sheet

    Name :

    Aprotinin Protein

    Description:

    Aprotinin

    Pancreatic trypsin inhibitor, Basic protease inhibitor, BPI, BPTI, Aprotinin, AP.

    Product # :

    PRO-285

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    Description

    Aprotinin is a natural proteinase inhibitor polypeptide consisting of fifty-eight amino acids {C284H432N84O79S7} arranged in a single polypeptide chain, cross-linked by three disulfide bridges and having a molecular mass of 6512.

    Source

    Bovine Lung.

    Formulation

    The protein (1mg/ml) was lyophilized with no additives.

    Citations

    More Info

    • Introduction

      Aprotinin inhibits the activity of several proteolytic enzymes such as chymotrypsin, kallikrein, plasmin and trypsin. Aprotinin is present in blood and in most tissues, with a high concentration in lung. Aprotinin inhibits pro-inflammatory cytokine release and maintains glycoprotein homeostasis. In platelets, aprotinin reduces glycoprotein loss (e.g., GpIb, GpIIb/IIIa), while in granulocytes it prevents the expression of pro-inflammatory adhesive glycoproteins (e.g., CD11b).

    • Synonyms

      Pancreatic trypsin inhibitor, Basic protease inhibitor, BPI, BPTI, Aprotinin, AP.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Aprotinin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Aprotinin 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 Aprotinin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Specific Activity

      5,940 KIU (Kallikrein Inactivator Units) per mg, 3.3 pH.Eur.U/mg.

    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.

    Bpti
  • View Data Sheet

    Name :

    MAX Human

    Description:

    MYC Associated Factor X Human Recombinant

    bHLHd4, bHLHd5, bHLHd6, bHLHd7, bHLHd8, MYC Associated Factor X, Class D basic helix-loop-helix protein 4, orf1, MGC10775, MGC11225, MGC18164, MGC34679, MGC36767, MAX Protein.

    Product # :

    PRO-811

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    Description

    MAX Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 168 amino acids (1-160 a.a.) and having a molecular mass of 19.3kDa. MAX protein is fused to an 8 amino acid His-Tag at C-terminus and purified by standard chromatography.

    Source

    Escherichia Coli.

    Formulation

    MAX Human solution containing 20mM Tris-HCl pH-8, 1mM DTT and 10% glycerol.

    Purity

    Greater than 90% as determined by SDS-PAGE.

    Citations

    More Info

    • Introduction

      MAX protein is part of the basic helix-loop-helix leucine zipper (bHLHZ) family of transcription factors. MAX forms homodimers and heterodimers with Mad, Mxi1 and Myc. Myc is an oncoprotein implicated in cell proliferation, differentiation and apoptosis. The homodimers and heterodimers compete for a common DNA target site (the E box) and rearrangement among these dimer forms offers a complex system of transcriptional regulation. In contrast to Myc, which is exceedingly regulated throughout progression during the cell cycle, Max is very stable and is much more abundant than Myc.

    • Synonyms

      bHLHd4, bHLHd5, bHLHd6, bHLHd7, bHLHd8, MYC Associated Factor X, Class D basic helix-loop-helix protein 4, orf1, MGC10775, MGC11225, MGC18164, MGC34679, MGC36767, MAX Protein.

    • 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.

    • Amino Acid Sequence

      MSDNDDIEVE SDEEQPRFQS AADKRAHHNA LERKRRDHIK DSFHSLRDSV PSLQGEKASR AQILDKATEY IQYMRRKNHT HQQDIDDLKR QNALLEQQVR ALEKARSSAQ LQTNYPSSDN SLYTNAKGST ISAFDGGSDS SSESEPEEPQ SRKKLRMEAS LEHHHHHH.

    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.

    Max Human
  • View Data Sheet

    Name :

    Leptin Ovine, MTS

    Description:

    Leptin Ovine Recombinant, MTS tag

    OB Protein, Obesity Protein, OBS, Obesity factor.

    Product # :

    CYT-531

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    Description

    Leptin Ovine MTS tagged Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 157 amino acids and having a molecular mass of 17.5 kDa.The Leptin is purified by proprietary chromatographic techniques. The membrane translocating sequence Tag is composed of 10 amino acids Val-Leu-Leu-Pro-Val-Leu-Leu-Ala-Ala-Pro located at the N-terminus.

    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.

    Citations

    More Info

    • 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.

    • Synonyms

      OB Protein, Obesity Protein, OBS, Obesity factor.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Leptin Ovine MTS tagged 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.

    • Solubility

      It is recommended to reconstitute the lyophilized Leptin in sterile 0.02% NaHCO3 not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Val-Leu-Leu-Pro.

    • Protein content

      Protein quantization was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.18 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.

    Leptin Ovine Mts
  • View Data Sheet

    Name :

    CTSD Human

    Description:

    Cathepsin-D Human Recombinant

    Cathepsin D, EC 3.4.23.5, CTSD, CPSD, CLN10, MGC2311.

    Product # :

    ENZ-378

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    Description

    CTSD produced in HEK293 cells is a single, glycosylated polypeptide chain containing 398 amino acids (21-412 a.a.) and having a molecular mass of 43.4kDa. CTSD is expressed with a 6 amino acid His tag at C-Terminus and purified by proprietary chromatographic techniques.

    Source

    HEK293 Cells

    Formulation

    CTSD at 1mg/ml in 50mM MES, pH5.5, 100mM NaCl and 20% Glycerol.

    Purity

    Greater than 95% as determined by SDS-PAGE

    Citations

    More Info

    • Introduction

      Cathepsin D is synthesized as a 54kDa precursor, which is proteolytically processed to an intermediate 48kDa single chain, which matures into more stable 34kDa and 14kDa two chain form. It is an estrogen-regulated lysosomal protease that has been suggested to facilitate cancer cell migration and invasion by digesting the basement membrane, extracellular matrix, and xonnective tissue. Because of its mitogenic and proteolytic activities, it has been implicated as a prognostic marker in many tumor types. Cathepsin D is expressed in epithelial cells as well as in macrophages.

    • Synonyms

      Cathepsin D, EC 3.4.23.5, CTSD, CPSD, CLN10, MGC2311.

    • Physical Appearance

      Sterile Filtered clear solution.

    • Stability

      Store vial at -20°C to -80°C. When stored at the recommended temperature, this protein is stable for 12 months.Please prevent freeze-thaw cycles.

    • Amino Acid Sequence

      LVRIPLHKFT SIRRTMSEVG GSVEDLIAKG PVSKYSQAVP AVTEGPIPEV LKNYMDAQYY GEIGIGTPPQ CFTVVFDTGS SNLWVPSIHC KLLDIACWIH HKYNSDKSST YVKNGTSFDI HYGSGSLSGY LSQDTVSVPC QSASSASALG GVKVERQVFG EATKQPGITF IAAKFDGILG MAYPRISVNN VLPVFDNLMQ QKLVDQNIFS FYLSRDPDAQ PGGELMLGGT DSKYYKGSLS YLNVTRKAYW QVHLDQVEVA SGLTLCKEGC EAIVDTGTSL MVGPVDEVRE LQKAIGAVPL IQGEYMIPCE KVSTLPAITL KLGGKGYKLS PEDYTLKVSQ AGKTLCLSGF MGMDIPPPSG PLWILGDVFI GRYYTVFDRD NNRVGFAEAA RLHHHHHH

    • Enzymatic Activity

      > 20 pmol/min/ug, defined as the amount of enzyme which cleaves 1pmol of Mca-PLGLDpa-AR-NH2/min at pH-3.5 at 25C.

    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.

    Ctsd Human
  • View Data Sheet

    Name :

    Resistin Mutant Human

    Description:

    Resistin Mutant Human Recombinant

    Resistin, Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.

    Product # :

    CYT-585

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    Description

    9.9 kDa protein containing 93 amino acid residues, produced in E.coli. Mutant-Resistin has had a Cysteine residue mutated to prevent dimerization and possibly acts as an antagonist.

    Source

    Escherichia Coli.

    Formulation

    Recombinant Human Resistin was lyophilized from a concentrated (1mg/ml) solution containing 0.1% TFA.

    Purity

    Greater than 95% as determined by SDS-PAGE.

    Citations

    More Info

    • Introduction

      Resistin, a product of the RSTN gene, is a peptide hormone belonging to the class of cysteine-rich secreted proteins which is termed the RELM family, and is also described as ADSF (Adipose Tissue- Specific Secretory Factor) and FIZZ3 (Found in Inflammatory Zone). Human resistin contains 108 amino acids as a prepeptide, and its hydrophobic signal peptide is cleaved before its secretion. Resistin circulates in human blood as a dimeric protein consisting of two 92 amino acid polypeptides, which are disulfide-linked via Cys26.
      Resistin may be an important link between obesity and insulin resistance. Mouse resistin, specifically produced and secreted by adipocyte, acts on skeletal muscle myocytes, hepatocytes and adipocytes themselves so that it reduces their sensitivity to insulin. Steppan et al. have suggested that resistin suppresses the ability of insulin to stimulate glucose uptake. They have also suggested that resistin is present at elevated levels in blood of obese mice, and is down regulated by fasting and antidiabetic drugs. Way et al., on the other hand, have found that resistin expression is severely suppressed in obesity and is stimulated by several antidiabetic drugs.
      Other studies have shown that mouse resistin increases during the differentiation of adipocytes, but it also seems to inhibit adipogenesis. In contrast, the human adipogenic differentiation is likely to be associated with a down regulation of resistin gene expression.

    • Synonyms

      Resistin, Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.

    • 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.

    • Solubility

      Add 0.2 ml of deionized water and let the lyophilized pellet dissolve completely.

    • Amino Acid Sequence

      MSSKTLCSME EAINERIQEV AGSLIFRAIS SIGLECQSVT SRGDLATCPR GFAVTGCTCG SACGSWDVRA ETTCHCQCAG MDWTGARCCR VQP.

    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.

    Resistin Mutant Human
  • View Data Sheet

    Name :

    Cardiac Actin Bovine

    Description:

    Cardiac Actin Bovine

    Actin alpha cardiac muscle 1, Alpha-cardiac actin, ACTC1, ACTC.

    Product # :

    PRO-519

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    Description

    Ultra pure Cardiac Actin having a Molecular mass of 43,000 dalton.

    Source

    Bovine Heart.

    Formulation

    The protein was lyophilized from a 1mg/ml solution containing 10mM Tris-acetate buffer pH 8.0, 0.2mM CaCl2, 0.2mM ATP, 1mM DTT and 0.5% SDS.

    Purity

    Greater than 98.0% as determined by:
    (a) Analysis by RP-HPLC.
    (b) Analysis by SDS-PAGE.

    Citations

    More Info

    • Introduction

      Alpha-cardiac actin belongs to the actin family which is comprised of three main groups of actin isoforms, alpha, beta, and gamma. The alpha actins are found in muscle tissues and are a major constituent of the contractile apparatus. Defects in the cardiac actin have been associated with idiopathic dilated cardiomyopathy (IDC) and familial hypertrophic cardiomyopathy (FHC).

    • Synonyms

      Actin alpha cardiac muscle 1, Alpha-cardiac actin, ACTC1, ACTC.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Cardiac-Actin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Cardiac Actin 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 Cardiac Actin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Applications

      Protein standard in 1D and 2D SDS gelelectrophoresis
      Immunoassays
      Immunization.

    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.

    Cardiac Actin
  • View Data Sheet

    Name :

    Humanin

    Description:

    Humanin

    Product # :

    HOR-042

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    Description

    Humanin Synthetic is a single, non-glycosylated polypeptide chain containing 24 amino acids, having a molecular mass of 2687 Dalton and a Molecular formula of C119H204N34O32S2 .

    Formulation

    The protein was lyophilized with no additives.

    Purity

    Greater than 97.0% as determined by analysis by RP-HPLC.

    Citations

    More Info

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Humanin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Humanin 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 Humanin in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      H-Met-Ala-Pro-Arg-Gly-Phe-Ser-Cys-Leu-Leu-Leu-Leu-Thr-Ser-Glu-Ile-Asp-Leu-Pro-Val-Lys-Arg-Arg-Ala-OH.

    • Background

      Humanin, a small peptide derived from the mitochondrial genome, has emerged as a remarkable molecule with diverse cellular protective functions. This research paper aims to provide a comprehensive analysis of Humanin, exploring its biochemical properties, mechanisms of action, and potential therapeutic applications in various disease contexts.

      Humanin, initially discovered for its role in neuroprotection, has since garnered interest for its broad spectrum of cytoprotective effects. Derived from the mitochondrial 16S ribosomal RNA, this small peptide plays a critical role in safeguarding cells from various stressors (Harvey, 2008). This paper delves into the complexities of Humanin, uncovering its multifaceted nature and potential clinical applications.

      Humanin is a 24-amino acid peptide with a unique secondary structure that contributes to its cellular protective functions. It localizes to both the cytoplasm and mitochondria, where it interacts with various proteins involved in apoptotic and oxidative stress pathways (Hoang et al., 2019). Additionally, Humanin can undergo post-translational modifications, further diversifying its actions.

      Humanin exerts its protective effects through multiple mechanisms. It interacts with the pro-apoptotic protein Bax, inhibiting its translocation to the mitochondria and preventing the release of cytochrome c (Hashimoto et al., 2001). Humanin also modulates the activities of caspases, key mediators of cell death pathways, thereby promoting cell survival in stressful conditions (Nakagawa et al., 2002).

      Beyond its initial recognition as a neuroprotective agent, Humanin has demonstrated cytoprotective effects in various cell types, including cardiomyocytes, neurons, and endothelial cells (Chai et al., 2019). It attenuates oxidative stress, reduces mitochondrial dysfunction, and promotes cell viability, thereby safeguarding cells from a multitude of insults.

      The multifaceted protective functions of Humanin offer promising therapeutic potential in various disease contexts. Research has shown its efficacy in mitigating neurodegenerative disorders, cardiovascular diseases, and age-related pathologies (Muzumdar et al., 2009). Furthermore, Humanin's ability to attenuate inflammation and promote tissue repair opens new avenues for therapeutic interventions.

    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.

    Humanin
  • View Data Sheet

    Name :

    FLT1 D7 Human

    Description:

    Vascular Endothelial Growth Factor Receptor-1 D1-7 Human Recombinant

    FLT-1, FLT1, Tyrosine-protein kinase receptor FLT, Flt-1, Tyrosine-protein kinase FRT, Fms-like tyrosine kinase 1, VEGFR-1.

    Product # :

    PKA-241

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    Description

    Soluble FLT1 Human Recombinant fused with the Fc part of human IgG1 produced in baculovirus is disulfide-linked homodimeric, glycosylated, polypeptide containing 751 amino acids and having a molecular mass of 130 kDa. The soluble receptor protein contains only the first 7 extracellular domains (Met1-Thr751), which contain all the information necessary for high affinity ligand binding. The FLT1 fc/Chimera is purified by proprietary chromatographic techniques.

    Source

    Insect Cells.

    Formulation

    FLT1 D1-7 was lyophilized from a concentrated (1 mg/ml) sterile solution containing PBS Buffer, pH 7.4.

    Purity

    Greater than 95.0% as determined by SDS-PAGE.

    Biological Activity

    The activity of FLT1/Fc was determined by its ability to inhibit the VEGF-dependent proliferation of human umbilical vein endothelial cells. The ED50 for this effect is typically 10-30 ng/ml, corresponding to a specific activity of 33,333.33-100,000 units/mg.

    Citations

    More Info

    • Introduction

      Endothelial cells express three different vascular endothelial growth factor (VEGF) receptors, belonging to the family of receptor tyrosine kinases (RTKs). They are named VEGFR-1 (Flt-1), VEGFR-2 (KDR/Flk-1), and VEGFR-3 (Flt-4). Their expression is almost exclusively restricted to endothelial cells, but VEGFR-1 can also be found on monocytes. All VEGF-receptors have seven immunoglobulin-like extracellular domains, a single transmembrane region and an intracellular split tyrosine kinase domain. VEGFR-2 has a lower affinity for VEGF than the Flt-1 receptor, but a higher signalling activity. Mitogenic activity in endothelial cells is mainly mediated by VEGFR-2 leading to their proliferation. Differential splicing of the flt-1 gene leads to the formation of a secreted, soluble variant of VEGFR-1 (sVEGFR-1). No naturally occurring, secreted forms of VEGFR-2 have so far been reported. The binding of VEGF165 to VEGFR-2 is dependent on heparin.

    • Synonyms

      FLT-1, FLT1, Tyrosine-protein kinase receptor FLT, Flt-1, Tyrosine-protein kinase FRT, Fms-like tyrosine kinase 1, VEGFR-1.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized FLT-1 although stable at room temperature for 3 weeks, should be stored desiccated below -18C. Upon reconstitution FLT1 should be stored at 4C between 2-7 days and for future use below -18C. 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 FLT1 Fc/Chimera in PBS not less than 50µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      MVSYWDTGVL LCALLSCLLL TGSSSGSKLK DPELSLKGTQ HIMQAGQTLH LQCRGEAAHK WSLPEMVSKE SERLSITKSA CGRNGKQFCS TLTLNTAQAN HTGFYSCKYL AVPTSKKKET ESAIYIFISD TGRPFVEMYS EIPEIIHMTE GRELVIPCRV TSPNITVTLK KFPLDTLIPD GKRIIWDSRK GFIISNATYK EIGLLTCEAT VNGHLYKTNY LTHRQTNTII DVQISTPRPV KLLRGHTLVL NCTATTPLNT RVQMTWSYPD EKNKRASVRR RIDQSNSHAN IFYSVLTIDK MQNKDKGLYT CRVRSGPSFK SVNTSVHIYD KAFITVKHRK QQVLETVAGK RSYRLSMKVK AFPSPEVVWL KDGLPATEKS ARYLTRGYSL IIKDVTEEDA GNYTILLSIK QSNVFKNLTA TLIVNVKPQI YEKAVSSFPD PALYPLGSRQ ILTCTAYGIP QPTIKWFWHP CNHNHSEARC DFCSNNEESF ILDADSNMGN RIESITQRMA IIEGKNKMAS TLVVADSRIS GIYICIASNK VGTVGRNISF YITDVPNGFH VNLEKMPTEG EDLKLSCTVN KFLYRDVTWI LLRTVNNRTM HYSISKQKMA ITKEHSITLN LTIMNVSLQD SGTYACRARN VYTGEEILQK KEITIRDQEA PYLLRNLSDH TVAISSSTTL DCHANGVPEP QITWFKNNHK IQQEPGIILG PGSSTLFIER VTEEDEGVYH CKATNQKGSV ESSAYLTVQG TAASDKTHTC PPCPAPELLG GPSVFLFPPK PKDTLMISRT PEVTCVVVDV SHEDPEVKFN WYVDGVEVHN AKTKPREEQY NSTYRVVSVL TVLHQDWLNG KEYKCKVSNK ALPAPIEKTI S.

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    Flt1 D7 Human
  • View Data Sheet

    Name :

    Leptin Receptor Chicken

    Description:

    Leptin Receptor Chicken Recombinant

    OB Protein, Obesity Protein, OBS, Obesity factor, Leptin Receptor.

    Product # :

    CYT-509

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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.

    Citations

    More Info

    • 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.

    • Synonyms

      OB Protein, Obesity Protein, OBS, Obesity factor, Leptin Receptor.

    • Physical Appearance

      Sterile Filtered colorless solution at a concentration of 0.4 mg/ml.

    • Stability

      Sterile solutions at 0.5mg/ml or less are stable at 4°C for several months.

    • 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.

    • 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.

    Leptin Receptor Chicken
  • View Data Sheet

    Name :

    TOR1A Human

    Description:

    Torsin Family 1 Member A Human Recombinant

    DQ2, DYT1, Torsin-1A, Dystonia 1 protein, Torsin family 1 member A, TOR1A.

    Product # :

    PRO-1430

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    Description

    TOR1A Human Recombinant produced in E. coli is a single polypeptide chain containing 333 amino acids (21-332) and having a molecular mass of 38kDa. TOR1A is fused to a 21 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

    Source

    E.coli.

    Formulation

    The TOR1A solution (1mg/ml) contains 20mM Tris-HCl buffer (pH 8.0), 0.4M Urea and 10% glycerol.

    Purity

    Greater than 90% as determined by SDS-PAGE.

    Citations

    More Info

    • Introduction

      TOR1A which is a member of the AAA family of adenosine triphosphatases (ATPases) is associated to the Clp protease/heat shock family and is expressed highly in the substantia nigra pars compacta.TOR1A functions as a molecular chaperone assisting in the suitable folding of secreted and/or membrane proteins. Mutations in TOR1A result in the autosomal dominant disorder, torsion dystonia one.

    • Synonyms

      DQ2, DYT1, Torsin-1A, Dystonia 1 protein, Torsin family 1 member A, TOR1A.

    • 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.

    • Amino Acid Sequence

      MGSSHHHHHH SSGLVPRGSH MVEPISLGLA LAGVLTGYIY PRLYCLFAEC CGQKRSLSRE ALQKDLDDNL FGQHLAKKII LNAVFGFINN PKPKKPLTLS LHGWTGTGKN FVSKIIAENI YEGGLNSDYV HLFVATLHFP HASNITLYKD QLQLWIRGNV SACARSIFIF DEMDKMHAGL IDAIKPFLDY YDLVDGVSYQ KAMFIFLSNA GAERITDVAL DFWRSGKQRE DIKLKDIEHA LSVSVFNNKN SGFWHSSLIH RNLIDYFVPF LPLEYKHLKM CIRVEMQSRG YEIDEDIVSR VAEEMTFFPK EERVFSDKGC KTVFTKLDYY YDD.

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    Tor1A Human
  • View Data Sheet

    Name :

    Ipamorelin

    Description:

    Ipamorelin

    Ipamorelin

    Product # :

    HOR-024

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    Description

    Ipamorelin Synthetic is a single, non-glycosylated polypeptide chain containing 4 amino acids, having a molecular mass of 711.85 Dalton and a Molecular formula of C38H49N9O5.

    Formulation

    The protein was lyophilized with no additives.

    Purity

    Greater than 97.0% as determined by analysis by RP-HPLC.

    Citations

    More Info

    • Introduction

      Ipamorelin is a peptide selective agonist of the ghrelin/growth hormone secretagogue receptor and a growth hormone secretagogue. Ipamorelin is a pentapeptide that was derived from GHRP1. Ipamorelin significantly increases plasma growth hormone levels in both animals and humans. Like pralmorelin and GHRP-6, ipamorelin does not affect prolactin, FSH, LH or TSH levels. However, unlike GHRP2 and GHRP6, but as growth hormone-releasing hormone (GHRH), ipamorelin does not stimulate the secretion of adrenocorticotropic hormone (ACTH) or cortisol, and is highly selective for inducing the secretion only of GH.

    • Synonyms

      Ipamorelin

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Ipamorelin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Ipamorelin 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 Ipamorelin in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      Aib-His-D-2-Nal-D-Phe-Lys-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.

    Ipamorelin
  • View Data Sheet

    Name :

    Leptin Chicken

    Description:

    Leptin Chicken Recombinant

    OB Protein, Obesity Protein, OBS, Obesity factor.

    Product # :

    CYT-505

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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.

    Citations

    More Info

    • 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.

    • Synonyms

      OB Protein, Obesity Protein, OBS, Obesity factor.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • 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.

    • 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.

    • 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.

    • 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.

    Leptin Chicken
  • View Data Sheet

    Name :

    SERPINA1 Human, Active

    Description:

    Alpha-1 Antitrypsin, Active Human Recombinant

    Alpha-1-antitrypsin, Alpha-1 protease inhibitor, Alpha-1-antiproteinase, SERPINA1, A1AT, PI, A1A, AAT, PI1, MGC9222, PRO2275, MGC23330.

    Product # :

    PRO-907

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    Description

    SERPINA1 Human Recombinant produced in rice is a single, non-glycosylated polypeptide chain containing 384 amino acids and having a molecular mass of 43.1 kDa.The SERPINA1 protein is purified by proprietary chromatographic techniques.

    Source

    Rice Grain (Oryza Sativa).

    Formulation

    SERPINA1 was lyophilized from a concentrated solution containing recombinant Albumin.

    Purity

    Greater than 95% as determined by SDS-PAGE.

    Biological Activity

    3~5 mg SERPINA1 will inhibit 1 mg PPE with an activity of 10.8 units per mg protein

    Citations

    More Info

    • Introduction

      SERPINA1 is secreted and is a serine protease inhibitor which its targets include elastase, plasmin, collagenase, leucocytic proteases, trypsin, chymotrypsin, and plasminogen activator. Defects in SERPINA1 gene can cause emphysema or liver disease. SERPINA1 is an endogenous inhibitor of serine proteases and inhibits the catalytic domain of human recombinant matriptase in vitro. Rise in SERPINA1 occurs as an acute phase response to tissue necrosis and inflammation. mutations in SERPINA1 and SLC11A1 genes change the balance between elastase produced by leukocytes during phagocytosis.

    • Synonyms

      Alpha-1-antitrypsin, Alpha-1 protease inhibitor, Alpha-1-antiproteinase, SERPINA1, A1AT, PI, A1A, AAT, PI1, MGC9222, PRO2275, MGC23330.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized SERPINA1 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution SERPINA1 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 SERPINA1 in sterile 18M-cm H2O 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.

    Serpina1 Human Active
  • View Data Sheet

    Name :

    Activin-A Antibody

    Description:

    Activin-A, Polyclonal Rabbit Anti-Human Antibody

    Inhba, Inhibin beta A, FSH releasing protein.

    Product # :

    ANT-029

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    Formulation

    Lyophilized from a sterile filtered (0.2µm) solution containing phosphate buffered saline.

    Citations

    More Info

    • Introduction

      Activins are homodimers or heterodimers of the different β subunit isoforms, part of the TGFβ family. Mature Activin A has two 116 amino acids residues βA subunits (βA-βA). Activin displays an extensive variety of biological activities, including mesoderm induction, neural cell differentiation, bone remodelling, haematopoiesis, and reproductive physiology. Activins takes part in the production and regulation of hormones such as FSH, LH, GnRH and ACTH. Cells that are identified to express Activin A include fibroblasts, endothelial cells, hepatocytes, vascular smooth muscle cells, macrophages, keratinocytes, osteoclasts, bone marrow monocytes, prostatic epithelium, neurons, chondrocytes, osteoblasts, Leydig cells, Sertoli cells, and ovarian granulosa cells.

    • Synonyms

      Inhba, Inhibin beta A, FSH releasing protein.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Store at -20ºC. For long term storage freezes in working aliquots at -20ºC. Repeated freezing and thawing is not recommended.

    • Solubility

      Add 0.1 ml of distilled water and let the lyophilized pellet dissolve completely.

    • Immunogen

      Recombinant human Activin-A produced in plants.

    • Applications

      Activin-A antibody has been tested by ELISA and Western blot analysis to assure specificity and reactivity. Since application varies, however, each investigation should be titrated by the reagent to obtain optimal results. In order to detect Human Activin A by indirect ELISA a dilution of at least 1:1,000 of the Activin A antibody is required. Activin A antibody, in conjunction with compatible secondary reagents (anti rabbit AP conjugated), allows the detection of 0.2-1 ng /well of Human Activin A. In order to detect human Activin A by WB analysis this IgG can be used in a dilution of 1:1,000.

    • Neutralization

      To yield one-half maximal inhibition (ND50) of the biological activity of Activin A (7.5ng/ml), a concentration of 60-200ng/ml of the Activin-A antibody is required.

    • Type

      Polyclonal Rabbit Antibody.

    • Purification Method

      Purified IgG prepared by affinity chromatography on protein G.

    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.

    Activin A Antibody
  • View Data Sheet

    Name :

    Leptin Ovine

    Description:

    Leptin Ovine Recombinant

    OB Protein, Obesity Protein, OBS, Obesity factor.

    Product # :

    CYT-239

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    Description

    Leptin Ovine 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 0.0045mM 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.

    Citations

    More Info

    • 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.

    • Synonyms

      OB Protein, Obesity Protein, OBS, Obesity factor.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • 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.

    • 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.

    • 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.

    • Protein content

      Protein quantitation was carried out by two independent methods1. 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). 2. Analysis by RP-HPLC,using calibrated solution of Leptin Ovine 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.

    Leptin Ovine
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