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1000 results found for “TNF receptor-Associated Factor”
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Name :
PDGF BB Human, YeastDescription:
Platelet Derived Growth Factor-BB Human Recombinant, Yeast
Glioma-derived growth factor, GDGF, Osteosarcoma-derived Growth Factor, ODGF, SIS, SSV, PDGF2, c-sis, FLJ12858, PDGF-BB, PDGF B-chain, Platelet-derived growth factor beta polypeptide, Becaplermin.
Product # :
CYT-242Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Platelet-Derived Growth Factor BB Human Recombinant is a glycosylated homodimer produced in Saccharomyces cerevisiae, containing 2x109 amino acids and having a molecular mass of 32kDa. PDGF-BB is purified by proprietary chromatographic techniques.
Source
Saccharomyces cerevisiae.
Formulation
The PDGF-BB was lyophilized from 0.2 µm filtered solution in 20mM sodium phosphate in absence of any carrier protein.
Purity
Greater than 98.0% as determined by SDS-PAGE.
Biological Activity
The ED50, as measured by its ability to stimulate proliferation of mouse 3T3 fibroblasts is typically 1 ng/ml, corresponding to a Specific Activity of 1,000,000IU/mg.More Info
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Introduction
PDGF-BB is a member of the platelet-derived growth factor family. The four members of this family are mitogenic factors for cells of mesenchymal origin and are characterized by a motif of eight cysteines. This gene product can exist either as a homodimer (PDGF-BB) or as a heterodimer with the platelet-derived growth factor alpha polypeptide (PDGF-AB), where the dimers are connected by disulfide bonds. Mutations in this gene are associated with meningioma. Reciprocal translocations between chromosomes 22 and 7, at sites where this gene and that for COL1A1 are located, are associated with a particular type of skin tumor called dermatofibrosarcoma protuberans resulting from unregulated expression of growth factor. Two splice variants have been identified for this gene.
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Synonyms
Glioma-derived growth factor, GDGF, Osteosarcoma-derived Growth Factor, ODGF, SIS, SSV, PDGF2, c-sis, FLJ12858, PDGF-BB, PDGF B-chain, Platelet-derived growth factor beta polypeptide, Becaplermin.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Platelet-derived Growth Factor BB although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution PDGF BB 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 Platelet-derived Growth Factor-BB in sterile 18M-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 Ser-Leu-Gly-Ser-Leu.
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 :
RBP5 HumanDescription:
Retinol Binding Protein-5 Human Recombinant
Retinol-binding protein 5, Cellular retinol-binding protein III, CRBP-III, HRBPiso, RBP5, CRBP3, CRBPIII.
Product # :
CYT-650Price :
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Shipped with Ice Packs
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Description
RBP5 Human Recombinant fused with a 20 amino acid His tag at N-terminus produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 155 amino acids (1-135 a.a.) and having a molecular mass of 18.1kDa. The RBP5 is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The RBP5 solution (0.5 mg/ml) contains 20mM Tris-HCl buffer (pH8.0), 10% glycerol, 2mM DTT and 100mM NaCl.
Purity
Greater than 95.0% as determined by SDS-PAGE.
More Info
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Introduction
RBP5 is a member of the Retinol-binding proteins family. Estimation of retinol-binding protein is used to determine visceral protein mass in nutritional studies related to health. RBP5 has a higher expression in the adult kidney and liver and to a lesser extent in the adult and fetal spleen, adult lymph nodes and appendix, and fetal liver and kidney. RBP5 expression is strongly decreased in hepatocellular carcinoma tissues.
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Synonyms
Retinol-binding protein 5, Cellular retinol-binding protein III, CRBP-III, HRBPiso, RBP5, CRBP3, CRBPIII.
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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 MPPNLTGYYR FVSQKNMEDY LQALNISLAV RKIALLLKPD KEIEHQGNHM TVRTLSTFRN YTVQFDVGVE FEEDLRSVDG RKCQTIVTWE EEHLVCVQKG EVPNRGWRHW LEGEMLYLEL TARDAVCEQV FRKVR.
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 :
PLGF3 HumanDescription:
Placental Growth Factor-3 Human Recombinant
Placental Growth Factor, Placental Growth Factor Vascular Endothelial Growth Factor-Related Protein, PGFL, PLGF, Placental Growth Factor-Like, Placenta Growth Factor, SHGC-10760, D12S1900, PlGF-2, PGF.
Product # :
CYT-969Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
PLGF3 Human Recombinant produced in E.Coli is a non-glycosylated homodimer containing 2x204 amino acids and having a total molecular mass of 45.8kDa.
Source
Escherichia Coli.
Formulation
Lyophilized from a sterile (0.2µm) filtered aqueous solution containing 0.1% Trifluoroacetic Acid (TFA).
Purity
Greater than 95.0% as determined by SDS-PAGE.
More Info
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Introduction
PLGF is a growth factor active in angiogenesis, and endothelial cell growth, stimulating their proliferation and migration. It binds to receptor vegfr-1/flt1.
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Synonyms
Placental Growth Factor, Placental Growth Factor Vascular Endothelial Growth Factor-Related Protein, PGFL, PLGF, Placental Growth Factor-Like, Placenta Growth Factor, SHGC-10760, D12S1900, PlGF-2, PGF.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized PLGF3 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution PLGF-3 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 PLGF-3 in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
MLPAVPPQQW ALSAGNGSSE VEVVPFQEVW GRSYCRALER LVDVVSEYPS EVEHMFSPSC VSLLRCTGCC GDENLHCVPV ETANVTMQLL KIRSGDRPSY VELTFSQHVR CECRHSPGRQ SPDMPGDFRA DAPSFLPPRR SLPMLFRMEW GCALTGSQSA VWPSSPVPEE IPRMHPGRNG KKQQRKPLRE KMKPERCGDA VPRR.
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 Rat, PEGDescription:
Pegylated Rat Leptin Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-592Price :
Quantity :
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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.
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Name :
Leptin DogDescription:
Leptin Dog Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-506Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Leptin Dog 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 0.20 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 :
Epoetin HumanDescription:
Erythropoietin-Alpha Human Recombinant
Erythropoietin-Alpha, EPO-a, EPO-alpha, EP, MGC138142.
Product # :
CYT-201Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Erythropoietin-alpha Human Recombinant is produced in Chinese hamster ovary (CHO) cells by recombinant DNA technology is a single, polypeptide chain containing 166 amino acids and having a predicted molecular mass of 21,000 Dalton and apparent glycosylated molecular mass of 36-40kDa. EPO-a is purified by proprietary chromatographic techniques.
Source
Chinese Hamster Ovary Cells(CHO).
Formulation
Each mg of lyophilized powder contains 0.59 mg sodium citrate, 0.58 mg sodium chloride and 0.006 mg citric acid.
Purity
Greater than 98.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.Biological Activity
The Specific Activity was measured by Normocyth -aemic mice and was found to be 150,000 IU/mg.More Info
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Introduction
This gene is a member of the EPO/TPO family and encodes a secreted, glycosylated cytokine composed of four alpha helical bundles. The protein is found in the plasma and regulates red cell production by promoting erythroid differentiation and initiating hemoglobin synthesis. This protein also has neuroprotective activity against a variety of potential brain injuries and antiapoptotic functions in several tissue types.
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Synonyms
Erythropoietin-Alpha, EPO-a, EPO-alpha, EP, MGC138142.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Erythropoietin-a although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution EPO-alpha 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 EPO-alpha 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
APPRLICDSR VLERYLLEAK EAENITTGCA EHCSLNENIT VPDTKVNFYA WKRMEVGQQA VEVWQGLALL SEAVLRGQAL LVNSSQPWEP LQLHVDKAVS GLRSLTTLLR ALGAQKEAIS PPDAASAAPL RTITADTFRK LFRVYSNFLR GKLKLYTGEA CRTGDR.
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Background
What is the molecular weight/Mw of EPOETIN Protein?
EPOETIN Protein has a total Mw of 38kDa.
What is the source or expression system of EPOETIN Protein?
Chinese Hamster Ovary Cells(CHO).
What is the Purity of EPOETIN Protein?
EPOETIN Protein is >98% pure as determined by SDS-PAGE.
What is the Biological Activity of EPOETIN Protein?
The Specific Activity was measured by Normocyth -aemic mice and was found to be 150,000 IU/mg.
What is the amino acid sequence of EPOETIN Protein?
APPRLICDSR VLERYLLEAK EAENITTGCA EHCSLNENIT VPDTKVNFYA WKRMEVGQQA VEVWQGLALL SEAVLRGQAL LVNSSQPWEP LQLHVDKAVS GLRSLTTLLR ALGAQKEAIS PPDAASAAPL RTITADTFRK LFRVYSNFLR GKLKLYTGEA CRTGDR.
What applications can EPOETIN Protein be used in?
EPOETIN Protein can probably be used in western blot, ELISA and Lateral Flow.
What is the endotoxin level for EPOETIN Protein?
The endotoxin level is minimal, EPOETIN 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 :
Leptin qA Rat, PEGDescription:
Leptin Quadruple Antagonist, Pegylated Rat Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-1241Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Leptin Pegylated Quadruple Antagonist Rat Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids. The Rat Leptin antagonist is bound to 20 kDa mono-PEG at N-terminus, resulting in 35.6 kDa. The Rat Leptin Pegylated Quadruple Antagonist was mutated, resulting in D23L/L39A/D40A/F41A that was purified by proprietary chromatographic techniques.
Source
Escherichia coli.
Formulation
The Rat Leptin Pegylated Quadruple Antagonist was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.
Purity
Greater than 98.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.
Biological Activity
Rat Leptin Pegylated Quadruple Antagonist inhibits leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Its in vitro.
More Info
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Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
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Physical Appearance
White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Rat Leptin Pegylated Quadruple Antagonist although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 and up to 2mM of rat pegylated leptin antagonist and filter sterilization rat pegylated leptin antagonist can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Rat Leptin Pegylated Quadruple Antagonist in sterile water or sterile 0.4% NaHCO3adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.
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Background
Leptin is a hormone which mainly produced by adipocytes. Leptin’s main part is to regulate long-term energy balance. Leptin is encoded by the LEP gene. Leptin receptors are expressed by various brain and peripheral cell types. leptin levels influence satiety, appetite and triggers behaviors which lead to energy savings. High leptin levels are interpreted by the brain that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
CD23 Human, Sf9Description:
CD23 Human Recombinant, Sf9
FCER2, FCER-2, CD23, CD23A, CLEC4J, FCE2, IGEBF, C-type lectin domain family 4 member J, Immunoglobulin E-binding factor, Lymphocyte IgE receptor.
Product # :
PRO-2499Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
CD23 produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 283 amino acids (48-321a.a.) and having a molecular mass of 32.0kDa. CD23 is expressed with a 6 amino acid His tag at C-Terminus and purified by proprietary chromatographic techniques.
Source
Sf9, Baculovirus cells.
Formulation
CD23 protein solution (0.25mg/ml) contains phosphate buffered saline (pH7.4) and 10% glycerol.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
FCER2, or Fc epsilon RII, is a receptor for IgE with low affinity, which is critical to regulation of IgE levels. IgE is an antibody isotype that attached to allergy and resistance to parasites. FCER2 is a C-type lectin, contrary to many of the receptors for antibodies. FCER2 is located on activated macrophages, mature B cells, follicular dendritic cells, platelets and eosinophils.
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Synonyms
FCER2, FCER-2, CD23, CD23A, CLEC4J, FCE2, IGEBF, C-type lectin domain family 4 member J, Immunoglobulin E-binding factor, Lymphocyte IgE receptor.
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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
ADPDTTQSLK QLEERAARNV SQVSKNLESH HGDQMAQKSQ STQISQELEE LRAEQQRLKS QDLELSWNLN GLQADLSSFK SQELNERNEA SDLLERLREE VTKLRMELQV SSGFVCNTCP EKWINFQRKC YYFGKGTKQW VHARYACDDM EGQLVSIHSP EEQDFLTKHA SHTGSWIGLR
NLDLKGEFIW VDGSHVDYSN WAPGEPTSRS QGEDCVMMRG SGRWNDAFCD RKLGAWVCDR LATCTPPASE GSAESMGPDS RPDPDGRLPT
PSAPLHSHHH HHH.
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 :
GHBP HumanDescription:
GHBP Human Recombinant
Product # :
CYT-238Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
GHBP Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 248 amino acids and having a molecular mass of 28107.01 Dalton. GHR is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
GHBP was lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3.
Purity
Greater than 98.0% as determined by:
(a) Analysis by SEC-HPLC.
(b) Analysis by SDS-PAGE.Biological Activity
GHBP is fully biologically active as evidenced by its ability of forming 2:1 complex with G.H.
More Info
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Introduction
GHBP is a transmembrane receptor for GH. Binding of GH to the receptor leads to receptor dimerization and the activation of an intra- and intercellular signal transduction pathway leading to growth. A common alternate allele of this gene, called GHRd3, lacks exon three and has been well-characterized. Mutations in this gene have been associated with Laron syndrome, also known as the GH insensitivity syndrome (GHIS), a disorder characterized by short stature. Other splice variants, including one encoding a soluble form of the protein (GHRtr), have been observed but have not been thoroughly characterized.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized GHBP although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution GHBP 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 GHBP 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
AFSGSEATAAILSRAPWSLQSVNPGLKTNS SKEPKFTKCRSPERETFSCHWTDEVHHGTK
NLGPIQLFYTRRNTQEWTQEWKECPDYVSA GENSCYFNSSFTSIWIPYCIKLTSNGGTVD
EKCFSVDEIVQPDPPIALNWTLLNVSLTGI HADIQVRWEAPRNADIQKGWMVLEYELQYK
EVNETKWKMMDPILTTSVPVYSLKVDKEYE VRVRSKQRNSGNYGEFSEVLYVTLPQMSQF
TCEEDFYF. -
Protein content
Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 2.6 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 GHBP 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 :
Prolactin Mouse, HisDescription:
Prolactin Mouse Recombinant, His Tag
AV290867, Gha1, Prl1a1, Growth hormone a1, Mammotropin, Luterotropic hormone, Lutetropin, PRL.
Product # :
CYT-1060Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
Prolactin Mouse produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 222 amino acids (30-228a.a.) and having a molecular mass of 25 kDa. Prolactin Mouse protein is fused to a 23 amino acid His tag at N-terminus and is purified by standard chromatography.
Source
Escherichia Coli.
Formulation
The Prolactin Mouse solution (0.25mg/ml) contains Phosphate Buffered Saline (pH 7.4) and 20% glycerol.
Purity
Greater than 90% as determined by SDS-PAGE.
More Info
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Introduction
Prolactin is a neuroendocrine hormone synthesized primarily by the pituitary gland but also a variety of other cell types including the placenta, brain and uterus. Its primary function is to promote and maintain lactation but has also been shown to have a role in breast cancer development, regulation of reproductive function and immunoregulation.
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Synonyms
AV290867, Gha1, Prl1a1, Growth hormone a1, Mammotropin, Luterotropic hormone, Lutetropin, PRL.
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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 MGSQPLPICS AGDCQTSLRE LFDRVVILSH YIHTLYTDMF IEFDKQYVQD REFMVKVIND CPTSSLATPE DKEQALKVPP EVLLNLILSL VQSSSDPLFQ LITGVGGIQE APEYILSRAK EIEEQNKQLL EGVEKIISQA YPEAKGNGIY VWSQLPSLQ GVDEESKILS LRNTIRCLRR DSHKVDNFLK VLRCQIAHQN NC.
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 :
GHBP RabbitDescription:
Growth Hormone Binding Protein Rabbit Recombinant
GHR, GHBP, GH receptor, Somatotropin receptor.
Product # :
CYT-593Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Growth Hormone Binding Protein Rabbit Extracellular Domain Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 249 amino acids and having a molecular mass of 28 kDa. GHBP Rabbit is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The Growth Hormone Binding Protein Rabbit was lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3.
Purity
Greater than 98.0% as determined bySDS-PAGE.
Biological Activity
Evidenced by its ability of forming 2:1 complex with non-primate Growth Hormones.More Info
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Introduction
GHBP is a transmembrane receptor for growth hormone. Binding of growth hormone to the receptor leads to receptor dimerization and the activation of an intra- and intercellular signal transduction pathway leading to growth. A common alternate allele of this gene, called GHRd3, lacks exon three and has been well-characterized. Mutations in this gene have been associated with Laron syndrome, also known as the growth hormone insensitivity syndrome (GHIS), a disorder characterized by short stature. Other splice variants, including one encoding a soluble form of the protein (GHRtr), have been observed but have not been thoroughly characterized.
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Synonyms
GHR, GHBP, GH receptor, Somatotropin receptor.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Growth Hormone Binding Protein Rabbit although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution GHBP Rabbit 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 GHBP Rabbit in sterile 0.4% NaHCO3 pH 10, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
AFSGSEATPATLGRASESVQRVHPGLGTNSSGKPKFTKCRSPELETFSCHWTDGVHHGLK
SPGSVQLFYIRRNTQEWTQEWKECPDYVSAGENSCYFNSSYTSIWIPYCIKLTNNGGMVD
QKCFSVEEIVQPDPPIGLNWTLLNVSLTGIHADIQVRWEPPPNADVQKGWIVLEYELQYK
EVNETQWKMMDPVLSTSVPVYSLRLDKEYEVRVRSRQRSSEKYGEFSEVLYVTLPQMSPFTCEEDFRFP.
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 :
SPP1 HumanDescription:
Osteopontin Human Recombinant
Secreted Phosphoprotein-1, OPN, BNSP, BSPI, ETA-1, MGC110940, SPP-1, Osteopontin, Bone sialoprotein 1, Urinary stone protein, Nephropontin, Uropontin, SPP1.
Product # :
CYT-635Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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- formulation
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Description
Secreted Phosphoprotein-1 Human Recombinant produced in E.Coli is single, a non-glycosylated, Polypeptide chain containing 321 amino acids fragment (17-314) and having a total molecular mass of 36.2 kDa(molecular weight on SDS-PAGE will shift up). The SPP1 protein is fused to a 20 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Osteopontin is supplied in 20mM Tris-HCl buffer pH-7.5, 1mM DTT, 2mM EDTA and 10% glycerol.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
Osteopontin is a glycoprotein that was first identified in osteoblasts and is involved in bone remodeling, immune functions in fibroblasts, macrophages, and lymphocytes during inflammation and wound healing. SPP1 binds tightly to hydroxyapatite. SPP1 forms an integral part of the mineralized matrix. SPP1 is vital to cell-matrix interaction.
Secreted Phosphoprotein-1 protects against cardiac ischemia-reperfusion injury via late preconditioning. Expression of both Ostepontin and CD44 in hepatocellular carcinoma is linked with advanced tumor stage and contributes to prognosis information. SPP1 is the most over-expressed gene in intrahepatic cholangiocarcinoma. Secreted Phosphoprotein-1 overexpression is related with interstitial lung diseases. -
Synonyms
Secreted Phosphoprotein-1, OPN, BNSP, BSPI, ETA-1, MGC110940, SPP-1, Osteopontin, Bone sialoprotein 1, Urinary stone protein, Nephropontin, Uropontin, SPP1.
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Physical Appearance
Sterile Filtered clear 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 RSMIPVKQAD SGSSEEKQLY NKYPDAVATW LNPDPSQKQN LLAPQNAVSS EETNDFKQET LPSKSNESHD HMDDMDDEDD DDHVDSQDSI DSNDSDDVDD TDDSHQSDES HHSDESDELV TDFPTDLPAT EVFTPVVPTV DTYDGRGDSV VYGLRSKSKK FRRPDIQYPD ATDEDITSHM ESEELNGAYK AIPVAQDLNA PSDWDSRGKD SYETSQLDDQ SAETHSHKQS RLYKRKANDE SNEHSDVIDS QELSKVSREF HSHEFHSHED MLVVDPKSKE EDKHLKFRIS HELDSASSEV N.
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 :
PCCDescription:
Prothrombin Complex
PCC, Prothrombin Complex.
Product # :
PRO-439Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- formulation
- More Info
Description
Prothrombin complex is a double virus–inactivated concentrate, containing equal concentrations of Factors II, VIII, IX, X and Heparin.
Formulation
Lyophilized Powder from 0.1M sodium chloride and 10mM sodium citrate buffer.
More Info
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Introduction
Prothrombin Complex Concentrate (PCC) is a combination of several blood clotting factors II, VII, IX and X. PCC is used in the treatment of the congenital bleeding disorders associated with Factors II, VII, IX, and X deficiencies. PCC reverses the effect of warfarin (a coumarin anti-coagulant) and is used in cases of significant bleeding in patients with a coagulopathy, for example, gastrointestinal haemorrhage or intracranial haemorrhage. The PCC is also extensively used in treating acquired coagulation abnormalities secondary to vitamin K deficiency, warfarin ingestion, and various types of liver disease.
Hepatitis, anaphylaxis and thrombosis have been reported as complications of prothrombin complex concentrates administration. -
Synonyms
PCC, Prothrombin Complex.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Prothrombin-Complex although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Prothrombin-Complex 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 Prothrombin Complex in sterile 18MΩ-cm H2O.
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 ProteinDescription:
Leptin Human Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-228Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- biological activity
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Description
Leptin Human 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 Gel filtration.
(b) Analysis by SDS-PAGE.Biological Activity
Biological Activity is 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 water or 0.4% NaHCO3 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 0.87 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Leptin OvineDescription:
Leptin Ovine Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-239Price :
Quantity :
Shipping Method :
Shipped at Room temp
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- description
- source
- formulation
- purity
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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.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-Ile-Arg.
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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 0.2 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.
- View Data Sheet
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
- description
- source
- formulation
- purity
- biological activity
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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
-
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.
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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.
- View Data Sheet
Name :
Myostatin HumanDescription:
Myostatin Human Recombinant
GDF-8, MSTN, Growth Differentiation Factor 8, MSTN Muscle Hypertrophy.
Product # :
CYT-418Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
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- source
- formulation
- purity
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Description
Myostatin Human Recombinant produced in E.Coli is a homodimer, non-glycosylated polypeptide chain containing 2 x 109 amino acids and having a total molecular mass of 24814 Dalton. The GDF-8 is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Lyophilized from a concentrated (1mg/ml) solution containing no additives.
Purity
Greater than 95.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.Biological Activity
The ED50 as determined by the inhibition of the proliferation of MPC-11 cells is < 20ng/ml, corresponding to a Specific Activity of 50,000units/mg.More Info
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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.
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Synonyms
GDF-8, MSTN, Growth Differentiation Factor 8, MSTN Muscle Hypertrophy.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Myostatin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Myostatin 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 Myostatin in sterile 20mM HCl at 0.1 mg/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 Asp-Phe-Gly-Leu-Asp.
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Protein content
Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 1.55 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 standard solution of Myostatin 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.
- View Data Sheet
Name :
Leptin HorseDescription:
Leptin Horse Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-504Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- biological activity
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Description
Leptin Horse 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.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.
-
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-Gln.
-
Protein content
Protein quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbency value of 0.1 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 Horse 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.
- View Data Sheet
Name :
Leptin ChickenDescription:
Leptin Chicken Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-505Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- biological activity
- More Info
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.
-
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.
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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.
- View Data Sheet
Name :
Leptin PufferfishDescription:
Leptin Pufferfish Recombinant
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-530Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
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- source
- formulation
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Description
Leptin Pufferfish (Takifugu rubripes) Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain having a molecular mass of 16 kDa. Bioactive Leptin Pufferfish (Takifugu rubripes) Recombinant was prepared according to the sequence published by Kurokawa et al. (2005)Peptides 26, 745-750 in two forms: monomer and covalent dimer. MS analysis revealed molecular masses of 15,291 and 30,585 Da, close to the theoretical values of 15,270 and 30,540 Da. CD spectra revealed high similarity to mammalian leptins. Other details of its preparation will be soon published by Yacobovitz et al (in press), General and Comparative Endocrinology.The Pufferfish Leptin is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The Pufferfish Leptin was lyophilized from a concentrated (0.85mg/ml) solution with 0.003mM NaHCO3.
Purity
Greater than 99.0% 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. The affinity of human leptin receptors is considerably lower campared 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.
-
Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
-
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
-
Stability
Lyophilized Pufferfish 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 Pufferfish Leptin in sterile 0.4% NaHCO3 pH-9 not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
ALPGALDAMDVEKMKSKVTWKAQGLVARIDKHFPDRGLRFDTDKVE
GSTSVVASLESYNNLISDRFGGVSQIKTEISSLAGYLNHWREGNCQE
QQPKVWPRRNIFNHTVSLEALMRVREFLKLLQKNVDLLERC
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Protein content
Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 1.28 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
GH ChickenDescription:
GH Chicken Recombinant
GH1, GH, GHN, GH-N, hGH-N,Pituitary GH, GH 1,
Product # :
CYT-430Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- biological activity
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Description
GH Chicken Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 191 amino acids with an additional Ala at its N-terminus and having a molecular mass of 22255 Dalton. GH Chicken recombinant is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The protein was lyophilized from a concentrated (1mg/ml) solution with 0.3% NaHCO3 adjusted to pH 8.
Purity
Greater than 99.0% as determined by:
(a) Analysis by SDS-PAGE gel.
(b) Analysis by SEC-HPLC.Biological Activity
GH Chicken Recombinantis fully biologically active in homologous assays and in PDF-P1 3B9 cells stably transfected with rabbit GH receptors.More Info
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Introduction
GH is a member of the prolactin family of hormones which play an important role in growth control. The gene, along with four other related genes, is located at the GH locus on chromosome 17 where they are interspersed in the same transcriptional orientation; an arrangement which is thought to have evolved by a series of gene duplications. The five genes share a remarkably high degree of sequence identity. Alternative splicing generates additional isoforms of each of the five GHs, leading to further diversity and potential for specialization. This particular family member is expressed in the pituitary but not in placental tissue as is the case for the other four genes in the GH locus. Mutations in or deletions of the gene lead to GH deficiency and short stature.
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Synonyms
GH1, GH, GHN, GH-N, hGH-N,Pituitary GH, GH 1,
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized GH Chicken although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 mg/ml and filter sterilization GH can be stored at 4°C for several weeks. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is recommended.Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized GH Chicken Recombinant in sterile water or 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml and not more than 3 mg/ml, which can then be further diluted to other aqueous solutions, preferably in presence of carrier protein.
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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-Thr-Phe-Pro-Ala.
-
Protein content
Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 0.75 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). 2. Analysis by RP-HPLC, using a calibrated solution of GH 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.