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1000 results found for “Lactoferrin”
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Name :
IFN Beta 1b HumanDescription:
IFN-Beta 1b Human Recombinant
Leukocyte IFN, B cell IFN, Type I IFN, IFNB1, IFB, IFF, IFNB, IFN-b 1b, MGC96956.
Product # :
CYT-234Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
IFN beta 1b Human Recombinant produced in E.Coli is a single, non-glycosylated mutein (variant form) of human IFN beta-1b polypeptide chain containing 165 amino acids and having a molecular mass of 18510.86 Dalton.The IFN-beta gene was cloned from human fibroblasts and altered to substitute Serine for the Cysteine residue found at position 17. IFN beta-1b is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Lyophilized from 1mg/ml solution containing 50mg Human Albumin & 50mg dextrose.
Purity
Greater than 98.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.Biological Activity
The specific activity as determined in a viral resistance assay (human "Wish" cell line and VSV virus or the monkey VERO cell line with EMCV virus) was found to be 32 x 106 IU/mg.More Info
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Introduction
IFN-beta 1b has antiviral, antibacterial and anticancer activities.
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Synonyms
Leukocyte IFN, B cell IFN, Type I IFN, IFNB1, IFB, IFF, IFNB, IFN-b 1b, MGC96956.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized IFN-beta 1b although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IFNB 1b 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 IFN beta-1b in sterile 18M-cm H2O at a concentration of 0.25mg/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-Tyr-Asn-Leu-Leu.
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Background
What is the molecular weight/Mw of IFN BETA 1B HUMAN Protein?
IFN BETA 1B HUMAN Protein has a total Mw of 18.5kDa.
What is the source or expression system of IFN BETA 1B HUMAN Protein?
Escherichia Coli.
What is the Purity of IFN BETA 1B HUMAN Protein?
IFN BETA 1B HUMAN Protein is >98% pure as determined by SDS-PAGE.
What is the Biological Activity of IFN BETA 1B HUMAN Protein?
The specific activity as determined in a viral resistance assay (human "Wish" cell line and VSV virus or the monkey VERO cell line with EMCV virus) was found to be 32 x 106 IU/mg.
What is the amino acid sequence of IFN BETA 1B HUMAN Protein?
The sequence of the first five N-terminal amino acids was determined and was found to be Ser-Tyr-Asn-Leu-Leu.
What applications can IFN BETA 1B HUMAN Protein be used in?
IFN BETA 1B HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.
What is the endotoxin level for IFN BETA 1B HUMAN Protein?
The endotoxin level is minimal, IFN BETA 1B HUMAN Protein was purified using conventional chromatography techniques.
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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 1.493 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 IFN-beta 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 :
PFN1 HumanDescription:
Profilin-1 Human Recombinant
Profilin-1, Profilin I, PFN1.
Product # :
PRO-528Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
PFN1 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 140 amino acids (1-140 a.a.) and having a molecular mass of 15kDa.The PFN1 is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The PFN1 protein solution contains 20mM Tris-HCl buffer (pH8.0) and 10% glycerol.
Purity
Greater than 95.0% as determined by SDS-PAGE.
More Info
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Introduction
Profilin1 (PFN1) is a ubiquitous actin monomer-binding protein which is a member of the profilin family. PFN1 significantly boosts skin wound healing in-vitro and in-vivo which may be mediated by purinergic receptors. PFN1 is also active in endothelial cell migration and vessel sprouting. PFN1 is thought to control actin polymerization in response to extracellular signals. PFN1 binds to actin and affects the formation of the cytoskeleton. In addition, PFN1 has an important role in the regulation of epithelial cell-cell adhesion. At high concentrations, profilin averts the polymerization of actin, while at low concentrations it enhances the polymerization. PFN1 gene deletion is linked to Miller-Dieker syndrome.
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Synonyms
Profilin-1, Profilin I, PFN1.
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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
MAGWNAYIDN LMADGTCQDA AIVGYKDSPS VWAAVPGKTF VNITPAEVGV LVGKDRSSFY VNGLTLGGQK CSVIRDSLLQ DGEFSMDLRT KSTGGAPTFN VTVTKTDKTL VLLMGKEGVH GGLINKKCYE MASHLRRSQY.
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 :
GLC8 YeastDescription:
GLC8 Yeast Recombinant
Protein GLC8, GLC8, YMR311C, YM9924.03C.
Product # :
PRO-540Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
GLC8 Yeast (Saccharomyces cerevisiae) Recombinant produced in E.coli is a single, glycosylated polypeptide chain containing 265 amino acids (1-229) and having a molecular mass of 30.7 kDa (molecular size on SDS-PAGE will appear higher). The GLC8 is fused to a 35 amino acid His Tag at N-Terminus and purified by standard chromatography techniques.
Source
Escherichia Coli.
Formulation
The protein solution (1mg/ml) contains 20mM Tris-HCl pH-8, 1mM DTT, and 10% glycerol.
Purity
Greater than 95% as determined by SDS-PAGE.
More Info
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Introduction
GLC8 is a regulatory subunit of protein phosphatase 1 (Glc7p). GLC8 plays a role in glycogen metabolism and chromosome segregation, and regulates Glc7p activity through conformational alteration; ortholog of the mammalian protein phosphatase inhibitor 2. Under regular conditions, GLC8 triggers GLC7, but when GLC8 is over epxressed, it inhibits Glc7p function. GLC8 is activated upon phosphoylation by Pho85p complexed with four cyclins (Pcl6p, Pcl7p, Pcl8p, or Pcl10p).
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Synonyms
Protein GLC8, GLC8, YMR311C, YM9924.03C.
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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
MRGSHHHHHH GMASMTGGQQ MGRDLYDDDD KDRWGSMGGI LKNPLALSPE QLAQQDPETL EEFRRQVYEN TQKNAKLTSH KRNIPGLDNT KEEGEIIGTS STFLPKDTLS LKHEQDMLAK MTPEERVQWN QRNLAENEIT KKQFQDIHID EPKTPYQGAV DPHGEYYRVD DDEDEDNSDK KPCQVANDDI DDLSLGEPEF EIKENKQPDF ETNDENDEDS PEARHKKFEE MRKKHYDVRA IFNKKSREAL KDEDEDEDDS TTKEP.
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 :
LGALS7 Human, HisDescription:
Galectin-7 Human Recombinant, His Tag
Galectin-7, Gal-7, HKL-14, PI7, p53-induced gene 1 protein, LGALS7, PIG1, LGALS7B, GAL7, LGALS7A.
Product # :
CYT-617Price :
Quantity :
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Shipped with Ice Packs
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Description
Galectin-7 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 156 amino acids (1-136 a.a.) and having a molecular mass of 17.2kDa. The Galectin-7 is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The Galectin-7 solution (1 mg/ml) 20mM Tris-HCl buffer (pH 8.0), 10% glycerol and 1mM DTT.
Purity
Greater than 95.0% as determined by SDS-PAGE.
SDS-PAGE
More Info
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Introduction
Galectins are a family of animal lectins with an affinity for beta-galactosides. This family has at least 14 identified members. Galectins share similarities in the CRD (the carbohydrate recognition domain). Galectins are synthesized as cytosolic proteins. Though localized principally in the cytoplasm and lacking a classical signal peptide, galectins can also be stimulated to secretion by non-classical pathways or alternatively targeted to the nucleus. Galectins are involved in modulating cell-cell and cell-matrix interactions. Human Galectin-7 belongs to the prototypical Galectins containing a single CRD, which is initially identified in human epidermis as a monomer. The Galectin-7 expression is induced by tumor suppressor protein p53 and associated with apoptosis. Galectin-7 is a pro-apoptotic protein which functions intracellularlly upstream of JNK activation and mitochondrial cytochrome c release. The correlation of Galectin-7 with the UV-induced apoptosis of keratinocytes presents a critical mechanism in the maintenance of epidermal homeostasis. Human Galectin-7 is localized in both nucleus and cytoplasm.
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Synonyms
Galectin-7, Gal-7, HKL-14, PI7, p53-induced gene 1 protein, LGALS7, PIG1, LGALS7B, GAL7, LGALS7A.
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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 MSNVPHKSSL PEGIRPGTVL RIRGLVPPNA SRFHVNLLCG EEQGSDAALH FNPRLDTSEV VFNSKEQGSW GREERGPGVP FQRGQPFEVL IIASDDGFKA VVGDAQYHHF RHRLPLARVR LVEVGGDVQL DSVRIF.
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Background
What is the molecular weight/Mw of LGALS7 HUMAN, HIS Protein?
LGALS7 HUMAN, HIS Protein has a total Mw of 17.2kDa.
What is the source or expression system of LGALS7 HUMAN, HIS Protein?
Escherichia Coli.
What is the Purity of LGALS7 HUMAN, HIS Protein?
LGALS7 HUMAN, HIS Protein is >95% pure as determined by SDS-PAGE.
What is the Biological Activity of LGALS7 HUMAN, HIS Protein?
The biological functionality of LGALS7 HUMAN, HIS Protein will be determined in the future.
What is the amino acid sequence of LGALS7 HUMAN, HIS Protein?
MGSSHHHHHH SSGLVPRGSH MSNVPHKSSL PEGIRPGTVL RIRGLVPPNA SRFHVNLLCG EEQGSDAALH FNPRLDTSEV VFNSKEQGSW GREERGPGVP FQRGQPFEVL IIASDDGFKA VVGDAQYHHF RHRLPLARVR LVEVGGDVQL DSVRIF.
What applications can LGALS7 HUMAN, HIS Protein be used in?
LGALS7 HUMAN, HIS Protein can probably be used in western blot, ELISA and Lateral Flow.
What is the endotoxin level for LGALS7 HUMAN, HIS Protein?
The endotoxin level is minimal, LGALS7 HUMAN, HIS 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 :
WIF1 HumanDescription:
WNT Inhibitory Factor 1 Human Recombinant
WIF1, WIF-1, Wnt inhibitory factor 1.
Product # :
PRO-684Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
WIF1 Human is a single, glycosylated polypeptide chain containing 360 amino acids (29-379 a.a.) and having a molecular mass of 39.5 kDaWIF1 is fused to 6 amino acid His Tag at C-Terminus and purified by proprietary chromatographic techniques.
Source
Sf9, Baculovirus cells.
Formulation
The WIF1 protein solution contains 1X PBS pH 7.4, 20% glycerol, 1mM DTT and 0.1mM PMSF.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
WIF1 binds to wnt proteins and inhibits their activities. WIF1 plays a role in mesoderm segmentation. WNT proteins are extracellular signaling molecules that take part in the control of embryonic development & cancer. WIF1 protein contains a WNT inhibitory factor (WIF) domain and 5 epidermal growth factor (EGF)-like domains. WIF1 takes part in mesoderm segmentation. WIF1 protein is found to be present in fish, amphibia and mammals. WIF1 is a recurrent target in human salivary gland oncogenesis. Downregulation of WIF1 takes part in the development and progression of pleomorphic adenomas. WIF1 is a tumor suppressor, specifically in nonfunctioning pituitary tumors.
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Synonyms
WIF1, WIF-1, Wnt inhibitory factor 1.
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Physical Appearance
Sterile filtered colorless solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
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Amino Acid Sequence
ADLGPPQEES LYLWIDAHQA RVLIGFEEDI LIVSEGKMAP FTHDFRKAQQ RMPAIPVNIH SMNFTWQAAG QAEYFYEFLS LRSLDKGIMA DPTVNVPLLG TVPHKASVVQ VGFPCLGKQD GVAAFEVDVI VMNSEGNTIL QTPQNAIFFK TCQQAECPGG CRNGGFCNER RICECPDGFH GPHCEKALCT PRCMNGGLCV TPGFCICPPG FYGVNCDKAN CSTTCFNGGT CFYPGKCICP PGLEGEQCEI SKCPQPCRNG GKCIGKSKCK CSKGYQGDLC SKPVCEPGCG AHGTCHEPNK CQCQEGWHGR HCNKRYEASL IHALRPAGAQ LRQHTPSLKK AEERRDPPES NYIWHHHHHH
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 :
SLPI HumanDescription:
Secretory Leukocyte Peptidase Inhibitor Human Recombinant
Antileukoproteinase, ALK1, ALP, BLPI, HUSI, HUSI-I, MPI, WAP4, WFDC4, WAP four-disulfide core domain protein 4, Protease inhibitor WAP4, Seminal proteinase inhibitor, Mucus proteinase inhibitor.
Product # :
PRO-849Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
SLPI Recombinant E.coli produced in E.Coli is a single, non-glycosylated polypeptide chain containing 128 amino acids (26-132 a.a.) and having a molecular mass of 14 kDa. The SLPI is fused to a 21 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
SLPI Human solution containing 20mM Tris-HCl pH-8.0, 2mM DTT, 0.1M NaCl & 20% glycerol.
Purity
Greater than 80.0% as determined by SDS-PAGE.
More Info
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Introduction
SLPI is a secreted inhibitor which guards epithelial tissues from serine proteases. SLPI is localized in various secretions including seminal plasma, cervical mucus, and bronchial secretions, and has affinity for trypsin, leukocyte elastase, and cathepsin G. SLPI inhibitory effect contributes to the immune response by protecting epithelial surfaces from attack by endogenous proteolytic enzymes. SLPI protein has broad-spectrum anti-biotic activity. SLPI is an acid-stable proteinase inhibitor with strong affinities for trypsin, chymotrypsin, elastase, and cathepsin G. SLPI prevents elastase-mediated damage to oral and mucosal tissues.
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Synonyms
Antileukoproteinase, ALK1, ALP, BLPI, HUSI, HUSI-I, MPI, WAP4, WFDC4, WAP four-disulfide core domain protein 4, Protease inhibitor WAP4, Seminal proteinase inhibitor, Mucus proteinase inhibitor.
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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 MSGKSFKAGV CPPKKSAQCL RYKKPECQSD WQCPGKKRCC PDTCGIKCLD PVDTPNPTRR KPGKCPVTYG QCLMLNPPNF CEMDGQCKRD LKCCMGMCGK SCVSPVKA.
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 :
POMC HumanDescription:
Proopiomelanocortin Human Recombinant
Pro-opiomelanocortin, POMC, LPH, MSH, NPP, POC, ACTH, CLIP.
Product # :
PRO-236Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
POMC produced in E.Coli is a single, non-glycosylated polypeptide chain containing 262 amino acids (27-267 a.a) and having a molecular mass of 28.9kDa (molecular weight on SDS-PAGE will appear higher).POMC is fused to a 21 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
POMC protein solution (0.25mg/ml) containing 20mM Tris-HCl buffer (pH 8.5), 1mM DTT, 50% glycerol, 0.1mM PMSF, 0.1M Imidazole and 0.2M NaCl.
Purity
Greater than 85.0% as determined by SDS-PAGE.
More Info
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Introduction
Pro-opiomelanocortin preproprotein (POMC) is a polypeptide hormone precursor which experiences extensive, tissue-specific, post-translational processing via cleavage by subtilisin-like enzymes known as prohormone convertases. POMC regulates the corticosteroid production in the adrenal cortex. Furthermore, POMC is cleaved into ten hormone chains named NPP, g-MSH, ACTH, a-MSH, CLIP, Lipotropin b, Lipotropin g, b-MSH,b endorphin and Met-enkephalin. POMC gene defects are the cause of POMC deficiency, which is characterized by red hair and adrenal insufficiency.
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Synonyms
Pro-opiomelanocortin, POMC, LPH, MSH, NPP, POC, ACTH, CLIP.
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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 MWCLESSQCQ DLTTESNLLE CIRACKPDLS AETPMFPGNG DEQPLTENPR KYVMGHFRWD RFGRRNSSSS GSSGAGQKRE DVSAGEDCGP LPEGGPEPRS DGAKPGPREG KRSYSMEHFR WGKPVGKKRR PVKVYPNGAE DESAEAFPLE FKRELTGQRL
REGDGPDGPA DDGAGAQADL EHSLLVAAEK KDEGPYRMEH FRWGSPPKDK RYGGFMTSEK SQTPLVTLFK NAIIKNAYKK GE.
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 :
GDF3 HumanDescription:
Growth Differentiation Factor-3 Human Recombinant
Growth Differentiation Factor 3, Growth/Differentiation Factor 3 , MCOPCB6, MCOP7, GDF-3, KFS3.
Product # :
CYT-694Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
GDF3 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 124 amino acids and having a total molecular mass of 14.15 kDa.GDF3 is fused to a 10 amino acid His Tag at N-terminus and purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The protein was lyophilized from a concentrated solution (0.5mg/ml) containing 30mM Acetate buffer pH-4.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
GDF3 is a member of the TGF-beta superfamily though it does not show similarity pattern of conserved cysteine residues. GDF3 is linked to Vg-1 and human BMP-4. GDF3 transcripts are identified mainly in adult bone marrow, spleen, thymus, and adipose tissue. GDF3 expression is upregulated strongly in high-fat-fed C57Bl/6J FABP4/aP2 null mice, which develop obesity but not the related hyperglycemia or hyperinsulinemia characteristic of type II diabetes. GDF3 expression therefore bonds fatty acid metabolism in adipocytes and the expression of a differentiation regulator belonging to the bone morphogenetic proteins.
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Synonyms
Growth Differentiation Factor 3, Growth/Differentiation Factor 3 , MCOPCB6, MCOP7, GDF-3, KFS3.
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Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized GDF3 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution GDF3 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 GDF3 in sterile 100mM Acetate buffer pH-4 at a concentration of 0.5mg/ml. For the dilution into higher pH values, it is recommended to dilute the protein to a concentration of 10μg/ml. Please note that in higher concentrations the solubility of GDF3 is limited. The protein is not sterile! Please sterile filter before using it in the cell culture.
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Amino Acid Sequence
MKHHHHHHAS AAIPVPKLSC KNLCHRHQLF INFRDLGWHK WIIAPKGFMA NYCHGECPFS LTISLNSSNY AFMQALMHAV DPEIPQAVCI PTKLSPISML YQDNNDNVIL RHYEDMVVDECGCG.
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Background
What is the molecular weight/Mw of GDF3 HUMAN Protein?
GDF3 HUMAN Protein has a total Mw of 14.15XkDa.
What is the source or expression system of GDF3 HUMAN Protein?
Escherichia Coli.
What is the Purity of GDF3 HUMAN Protein?
GDF3 HUMAN Protein is >90% pure as determined by SDS-PAGE.
What is the Biological Activity of GDF3 HUMAN Protein?
The biological functionality of GDF3 HUMAN Protein will be determined in the future.
What is the amino acid sequence of GDF3 HUMAN Protein?
MKHHHHHHAS AAIPVPKLSC KNLCHRHQLF INFRDLGWHK WIIAPKGFMA NYCHGECPFS LTISLNSSNY AFMQALMHAV DPEIPQAVCI PTKLSPISML YQDNNDNVIL RHYEDMVVDECGCG.
What applications can GDF3 HUMAN Protein be used in?
GDF3 HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.
What is the endotoxin level for GDF3 HUMAN Protein?
The endotoxin level is minimal, GDF3 HUMAN Protein was purified using conventional chromatography techniques.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Super Leptin qA OvineDescription:
Super Leptin Antagonist Ovine Recombinant
Product # :
CYT-1245Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
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Description
Super Leptin Antagonist Ovine Recombinant is a single polypeptide chain containing 146 amino acids, an additional Ala at N-terminus acids and having a molecular mass of ~ 16 kDa. Super Ovine Leptin Antagonist was mutated, resulting in D23L/L39A/D40A/F41A that was purified by proprietary chromatographic techniques.
Source
Escherichia coli.
Formulation
The protein was lyophilized from a concentrated (1mg/ml) solution with 0.003mM NaHCO3.
Purity
Greater than 98.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.
Biological Activity
ProSpec’s super Ovine leptin antagonist is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Super Ovine leptin antagonist also inhibits various leptin effects in several in vitro bioassays.
More Info
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Physical Appearance
White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Super Leptin Antagonist although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution of super Ovine leptin antagonist at > 0.1 mg/ml and up to 2 mg/ml and filter sterilization super Ovine leptin antagonist can be stored at 4C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Super Leptin Antagonist in sterile water or sterile 0.4% NaHCO3 adjusted to pH 10, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Val-Pro-Ile-Arg.
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Background
Leptin is a hormone which mainly produced by adipocytes. Leptin’s main part is to regulate long-term energy balance. Leptin is encoded by the LEP gene. Leptin receptors are expressed by various brain and peripheral cell types. leptin levels influence satiety, appetite and triggers behaviours which save energy. When leptin levels are high, the brain interprets that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.
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Protein content
Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.2 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
PF 4 ProteinDescription:
Platelet Factor-4 Human (CXCL4)
CXCL4, PF-4, PF4, Iroplact, Oncostatin-A, SCYB4, MGC138298.
Product # :
CHM-234Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Human PF-4 a 7.8 kDa protein consisting of 70 amino acid residues.
Source
Human Platelets.
Formulation
The CXCL4 protein was lyophilized in PBS buffer pH-7.4.
Purity
Greater than 95.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.More Info
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Introduction
Platelet factor-4 is a 70-amino acid protein that is released from the alpha-granules of activated platelets and binds with high affinity to heparin. Its major physiologic role appears to be neutralization of heparin-like molecules on the endothelial surface of blood vessels, thereby inhibiting local antithrombin III activity and promoting coagulation. As a strong chemoattractant for neutrophils and fibroblasts, PF4 probably has a role in inflammation and wound repair. Oncostatin-A is a member of the CXC chemokine family. Human PF4 is used for the proof of heparin-induced thrombocytopenia. Furthermore it is used as an inhibitor in the angiogenesis during tumor therapy.
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Synonyms
CXCL4, PF-4, PF4, Iroplact, Oncostatin-A, SCYB4, MGC138298.
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Physical Appearance
Sterile Filtered white lyophilized powder.
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Stability
Human CXCL4 although stable at 25°C 1 week, should be stored desiccated below -18°C. Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized CXCL4 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 four N-terminal amino acids was determined and was found to be Glu-Ala-Glu-Glu.
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 :
Flagellin FLADescription:
Recombinant Flagellin Listeria Monocytogenes
Product # :
PRO-2772Price :
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Description
Flagellin Listeria Monocytogenes Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain having a molecular mass of approximately 31.2kDa. The Flagellin FLA is fused to a 6xHis tag at N-terminus and purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The Flagellin Listeria Monocytogenes 1mg/ml solution contains 10mM PBS (pH-7.2).
Purity
Greater than 90% as determined by SDS-PAGE.
More Info
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Introduction
Listeria monocytogenes is a pathogenic bacteria that manufactures flagella.At 37 °C inside humans, it causes MogR to repress the expression of flagellar proteins, thus stopping the manufacturing of flagella. Though, in the low-temperatures externally of the host, the GmaR inactivates MogR, enabling flagellar formation.
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Physical Appearance
Sterile Filtered colorless solution.
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Stability
Lyophilized Flagellin FLA although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Flagellin should be stored at 4°C between 2-7 days and for future use below -18°C.Please prevent 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.
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Name :
TNFRSF10C HumanDescription:
TRAIL Receptor-3 Human Recombinant
Tumor Necrosis Factor Receptor Superfamily, Member 10c, Decoy Without An , Intracellular Domain, TRAILR3, DCR1, TRID, TNF-Related Apoptosis-Inducing Ligand Receptor, Antagonist Decoy Receptor For TRAIL/Apo-2L, Decoy TRAIL Receptor Without Death Domain, Lymphocyte Inhibitor Of TRAIL, Decoy Receptor,TRAIL-R, LIT,Tumor Necrosis Factor Receptor Superfamily Member 10C, TRAIL Receptor Without an Intracellular Domain, Cytotoxic TRAIL Receptor, TRAIL Receptor, CD263 Antigen, DCR1-TNFR, CD263.
Product # :
CYT-889Price :
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Description
TNFRSF10C Human Recombinant produced in E. coli is a single, non-glycosylated polypeptide chain containing 234 amino acids (26-236 a.a) and having a molecular mass of 24.6 kDa.TNFRSF10C is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
TNFRSF10C protein solution (1mg/ml) containing 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
TRAIL Receptor-3, also known as TNFRSF10C belongs to theTNF-receptor super family. TNFRSF10C contains an extracellular TRAIL-binding domain as well as a transmembranedomain, however no cytoplasmic death domain. Furthermore, TNFRSF10C is not capable of inducing apoptosis, and is considered toact as an antagonistic receptor which protects cells from TRAIL-induced apoptosis.
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Synonyms
Tumor Necrosis Factor Receptor Superfamily, Member 10c, Decoy Without An , Intracellular Domain, TRAILR3, DCR1, TRID, TNF-Related Apoptosis-Inducing Ligand Receptor, Antagonist Decoy Receptor For TRAIL/Apo-2L, Decoy TRAIL Receptor Without Death Domain, Lymphocyte Inhibitor Of TRAIL, Decoy Receptor,TRAIL-R, LIT,Tumor Necrosis Factor Receptor Superfamily Member 10C, TRAIL Receptor Without an Intracellular Domain, Cytotoxic TRAIL Receptor, TRAIL Receptor, CD263 Antigen, DCR1-TNFR, CD263.
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Physical Appearance
Sterile Filtered clear solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please avoid freeze thaw cycles.
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Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSATTARQE EVPQQTVAPQ QQRHSFKGEE CPAGSHRSEH TGACNPCTEG VDYTNASNNE PSCFPCTVCK SDQKHKSSCT MTRDTVCQCK EGTFRNENSP EMCRKCSRCP SGEVQVSNCT SWDDIQCVEE FGANATVETP AAEETMNTSP GTPAPAAEET MNTSPGTPAP AAEETMTTSP GTPAPAAEET MTTSPGTPAP AAEETMTTSP GTPA.
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 :
CLTA HumanDescription:
Clathrin, Light Chain A Human Recombinant
Clathrin light chain A, Lca, CLTA.
Product # :
PRO-1144Price :
Quantity :
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Description
CLTA Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 242 amino acids (1-218 a.a) and having a molecular mass of 26.2kDa (Molecular weight on SDS-PAGE will appear higher).CLTA is fused to a 24 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
CLTA protein solution (1mg/ml) containing 20mM Tris-HCl buffer (pH 8.0), 0.1M NaCl and 10% glycerol.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
Clathrin, light chain A (CLTA) is a member of the clathrin family. Clathrin, which is a large, soluble protein, is comprised of heavy and light chains. CLTA is one of 2 clathrin light chain proteins which are supposed to function as regulatory elements. CLTA is a key cytosolic coat protein in pits and vesicles originating from the plasma membrane and the trans-Golgi network. In receptor-mediated endocytosis, receptor proteins are encapsulated by Clathrin-coated vesicles.
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Synonyms
Clathrin light chain A, Lca, CLTA.
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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 MGSHMAELDP FGAPAGAPGG PALGNGVAGA GEEDPAAAFL AQQESEIAGI ENDEAFAILD GGAPGPQPHG EPPGGPDAVD GVMNGEYYQE SNGPTDSYAA ISQVDRLQSE PESIRKWREE QMERLEALDA NSRKQEAEWK EKAIKELEEW YARQDEQLQK
TKANNRAAEE AFVNDIDESS PGTEWERVAR LCDFNPKSSK QAKDVSRMRS VLISLKQAPL VH.
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 :
GTSF1 HumanDescription:
Gametocyte Specific Factor 1 Human Recombinant
Gametocyte Specific Factor 1, FAM112B, Family with Sequence Similarity 112 Member B, Gametocyte-Specific Factor 1, Protein FAM112B, GTSF1.
Product # :
PRO-561Price :
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Description
GTSF1 Human Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 190 amino acids (1-167) and having a molecular mass of 21.7 kDa.GTSF1 is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The GTSF1 solution (0.5mg/ml) contains 20mM Tris-HCl buffer (pH 8.0), 0.15M NaCl and 20% glycerol and 1mM DTT.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
Gametocyte Specific Factor 1 (GTSF1) is a member of the UPF0224 (FAM112) family and contains 1 CHHC-type zinc finger. A key paralog of the GTSF1 gene is GTSF1L.
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Synonyms
Gametocyte Specific Factor 1, FAM112B, Family with Sequence Similarity 112 Member B, Gametocyte-Specific Factor 1, Protein FAM112B, GTSF1.
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Physical Appearance
Sterile Filtered clear solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
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Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSMEETYTD SLDPEKLLQC PYDKNHQIRA CRFPYHLIKC RKNHPDVASK LATCPFNARH QVPRAEISHH ISSCDDRSCI EQDVVNQTRS LRQETLAEST WQCPPCDEDW DKDLWEQTST PFVWGTTHYS DNNSPASNIV TEHKNNLASG MRVPKSLPYV LPWKNNGNAQ.
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 :
LA/SS-B Human, BiotinDescription:
LA / SS-B Human Recombinant, Biotinylated
Lupus La protein, Sjoegren syndrome type B antigen, SS-B, La ribonucleoprotein, La autoantigen, SSB, La, LARP3, LA/SS-B, La(SS-B).
Product # :
PRO-2562Price :
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Description
LA/SS-B Human Recombinant produced in SF9 is a single, glycosylated, polypeptide chain having a calculated molecular mass of 48 kDa. The LA/SS-B is expressed with a -6x His tag at N-terminus and purified by proprietary chromatographic techniques.
Source
Sf9 insect cells.
Formulation
The protein solution contains 20mM HEPES, pH 7.5, 400mM NaCl, 20% Glycerol.
Purity
Greater than 80.0% as determined by SDS-PAGE.
More Info
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Introduction
The La protein is a 47 kDa polypeptide that frequently acts as an autoantigen in systemic lupus erythematosus and Sjogren's syndrome patients. La is involved in various aspects of RNA metabolism, including binding and protecting 3-prime UUU(OH) elements of newly RNA polymerase III - transcribed RNA, processing 5-prime and 3-prime ends of pre-tRNA precursors, acting as an RNA chaperone, and binding viral RNAs linked to hepatitis C virus. It occurs in both the nucleus and the cytoplasm, where it assumes different roles. In the nucleus, La protein facilitates the production of tRNAs, acting as an RNA polymerase III (RNAP III) transcription factor by attaching to the U-rich 3'UTR of nascent transcripts, aiding in their folding and maturation. In the cytoplasm, La protein facilitates the translation of specific mRNAs, acting as a translation factor. As an RNA binding protein (RBP), La protein associates with subsets of mRNAs which contain a 5'-terminal oligopyrimidine (5'TOP) motif known to direct protein synthesis. The binding of La protein to particular classes of RNA molecules regulates their downstream processing, guards them from endonuclease digestion, and organizes their export from the nucleus. La/SS-B appears to be readily disposed to proteolysis, which results in many smaller (42kD, 320, and 270) nevertheless still immunoreactive polypeptides. La/SS-B antigen is strongly conserved across species. Anti-La/SS-B autoantibodies were originally found as precipitating autoantibodies in sera of Sjogren's Syndrome patients and referred to as SjT. Anti-La/SS-B precipitins are most frequently found in Sjogren's Syndrome, Systemic Lupus Erythematosus (SLE) and Subacute Cutaneous Lupus. Also, there seems to be a correlation between anti-La/SS-B and the absence of nephritis in SLE patients.
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Synonyms
Lupus La protein, Sjoegren syndrome type B antigen, SS-B, La ribonucleoprotein, La autoantigen, SSB, La, LARP3, LA/SS-B, La(SS-B).
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Physical Appearance
Sterile Filtered clear solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. Avoid multiple freeze-thaw cycles.
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Immunological Functions
1. Binds IgG type human auto antibodies.2. Functional Streptavidin based ELISA test (analysis of positive/negative samples.)
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 :
Y.Enterocolitica (O:9) YopHDescription:
Yersinia Enterocolitica (O:9) YopH Recombinant
Product # :
PRO-2275Price :
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Description
Recombinant Yersinia Enterocolitica (O:9) YopH produced in E.coli is a non-glycosylated, polypeptide chain having a calculated molecular mass of 52,311 Dalton. Y.Enterocolitica (O:9) YopH is expressed with a 10xHis tag at N-terminus and purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Y.Enterocolitica (O:9) YopH is supplied in 20mM HEPES buffer pH-7.6, 250mM NaCl and 20% glycerol.
Purity
Greater than 80.0% as determined by SDS-PAGE.
More Info
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Introduction
Yersinia enterocolitica is a Gram-negative bacillus-shaped bacterium, which is a member of the Enterobacteriaceae family. Y.Enterocolitica is motile at temperatures between 22-29°C, however becomes non-motile at normal human body temperature. Y. Enterocolitica infection causes the yersiniosis disease, which is an animal-borne disease occurring in humans, as well as in a various groups of animals such as cattle, deer, pigs, and birds. Yersinia enterocolitica is a heterogeneous group of strains, which are conventionally classified by bio-typing into six bio-groups on the basis of phenotypic characteristics, and by serotyping into more than 57 “O” serogroups, on the basis of their O (lipopolysaccharide or LPS) surface antigen. Five of the six biogroups (1B and 2–5) are considered as pathogens. Nevertheless, only a few of these serogroups have been linked with disease in either humans or animals. Strains which belong to serogroups O:3 (biogroup 4), O:5,27 (biogroups 2 and 3), O:8 (biogroup 1B), and O:9 (biogroup 2) are most frequently isolated worldwide from human samples. Still, the main Y. enterocolitica serogroup in many European countries is serogroup O:3 followed by O:9, whereas the serogroup O:8 is mostly detected in the United States.
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Physical Appearance
Sterile Filtered clear solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. Avoid multiple freeze-thaw cycles.
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Immunological Functions
1. Binds IgG- and IgM- and IgA-type human antibodies.2. Immunodot test with positive/negative sera panels.
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 :
TNFR Human, Sf9Description:
Tumor Necrosis Factor Receptor, sf9 Human Recombinant
Tumor Necrosis Factor Receptor Superfamily Member 9, Tumor Necrosis Factor Receptor Superfamily, Member 9, T-Cell Antigen 4-1BB Homolog, 4-1BB Ligand Receptor, T-Cell Antigen ILA, CD137 Antigen, CDw137, CD137, ILA, Interleukin-Activated Receptor, Homolog Of Mouse Ly63,Induced By Lymphocyte Activation (ILA), Homolog Of Mouse 4-1BB, Receptor Protein 4-1BB, T Cell Antigen ILA, 4-1BB.
Product # :
CYT-951Price :
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Description
TNFR produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 411 amino acids (18-186 a.a.) and having a molecular mass of 45.3kDa. (Migrates at 40-57kDa on SDS-PAGE under reducing conditions). TNFR is expressed with a 239 amino acid hIgG-His-tag at C-Terminus and purified by proprietary chromatographic techniques.
Source
Sf9, Baculovirus cells.
Formulation
TNFR protein solution (0.5mg/ml) contains Phosphate Buffered Saline (pH 7.4) and 10% glycerol.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
TNFR1 belongs to the TNF-receptor superfamily. TNFR1 is a receptor for TNFSF2/TNF-alpha and homotrimeric TNFSF1/lymphotoxin-alpha.
There are 2 types of soluble TNF receptors: sTNFR-I and sTNFR-II, which act to neutralize the biological activities of TNF alpha and TNF beta. The levels of these soluble receptors seem to increase as a result of shedding of the extracellular domains of the membrane bound receptors. TNF-a, TNFR1 and TNFR2 have roles in cellular differentiation. TNFR1 and TNFR2 function in cell type-specific renal injury.
TNFR1 is capable of signaling both cell survival and apoptosis. TNFR1-induced apoptosis requires 2 sequential signaling complexes. TNFR1 is capable of activating NF-kappaB, mediate apoptosis, and function as a regulator of inflammation. Oxidative stress promotes TNFR1 and TNFR2 self-interaction, ligand-independent and enhanced ligand-dependent TNF signaling. TNFR1 contributes to the induction of non-cytocidal TNF effects including anti-viral state and activation of the acid sphingomyelinase. Human TNFR1 has a major region which controls cell surface expression. High levels of soluble TNF receptors are found in the amniotic fluid of pregnant women.
Germline mutations of the extracellular domains of TNFR1 are linked to the autosomal dominant periodic fever syndrome. The impaired receptor clearance is believed to be a mechanism of the disease. Familial hibernian fever (FHF) is caused by defects in TNFRSF1A gene. -
Synonyms
Tumor Necrosis Factor Receptor Superfamily Member 9, Tumor Necrosis Factor Receptor Superfamily, Member 9, T-Cell Antigen 4-1BB Homolog, 4-1BB Ligand Receptor, T-Cell Antigen ILA, CD137 Antigen, CDw137, CD137, ILA, Interleukin-Activated Receptor, Homolog Of Mouse Ly63,Induced By Lymphocyte Activation (ILA), Homolog Of Mouse 4-1BB, Receptor Protein 4-1BB, T Cell Antigen ILA, 4-1BB.
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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
ADLFERTRSL QDPCSNCPAG TFCDNNRNQI CSPCPPNSFS SAGGQRTCDI CRQCKGVFRT RKECSSTSNA ECDCTPGFHC LGAGCSMCEQ DCKQGQELTK KGCKDCCFGT FNDQKRGICR PWTNCSLDGK SVLVNGTKER DVVCGPSPAD LSPGASSVTP PAPAREPGHS PQLEPKSCDK THTCPPCPAP ELLGGPSVFL FPPKPKDTLM ISRTPEVTCV VVDVSHEDPE VKFNWYVDGV EVHNAKTKPR EEQYNSTYRV VSVLTVLHQD WLNGKEYKCK VSNKALPAPI EKTISKAKGQ PREPQVYTLP PSRDELTKNQ VSLTCLVKGF YPSDIAVEWE SNGQPENNYK TTPPVLDSDG SFFLYSKLTV DKSRWQQGNV FSCSVMHEAL HNHYTQKSLS LSPGKHHHHH H.
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 :
IL1F10 Human HisDescription:
Interleukin 1 Family, Member 10 Human Recombinant, His Tag
Interleukin-1 family member 10, IL-1F10, FIL1 theta, Interleukin-1 HY2, IL-1HY2, Interleukin-1 theta, IL-1 theta, IL1F10, FIL1T, IL1HY2, FKSG75, MGC119831, MGC119832, MGC119833, FIL1-theta.
Product # :
CYT-783Price :
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Description
IL1F10 Human Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 172 amino acids (1-152) and having a molecular mass of 19.1kDa.IL1F10 is fused to a 20 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The IL1F10 solution contains 20mM Tris-HCl buffer (pH 8.0), 0.15M NaCl, 1mM DTT and 20% glycerol.
Purity
Greater than 85% as determined by SDS-PAGE.
More Info
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Introduction
Human interleukin family 1, member 10 (IL1F10) belongs to the interleukin 1 cytokine family. IL1F10 is expressed in the fetal skin, spleen and tonsil, generally in the basal epithelia of skin and in proliferating B-cells of the tonsil. IL1F10 binds soluble IL1 receptor type 1 and may be implicated in the regulation of adapted and innate immune responses.
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Synonyms
Interleukin-1 family member 10, IL-1F10, FIL1 theta, Interleukin-1 HY2, IL-1HY2, Interleukin-1 theta, IL-1 theta, IL1F10, FIL1T, IL1HY2, FKSG75, MGC119831, MGC119832, MGC119833, FIL1-theta.
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Physical Appearance
Sterile filtered colorless solution.
-
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
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Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MCSLPMARYY IIKYADQKAL YTRDGQLLVG DPVADNCCAE KICTLPNRGL DRTKVPIFLG IQGGSRCLAC VETEEGPSLQ LEDVNIEELY KGGEEATRFT FFQSSSGSAF RLEAAAWPGW FLCGPAEPQQ PVQLTKESEP SARTKFYFEQ SW
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 :
LIF MouseDescription:
Leukemia Inhibitory Factor Mouse Recombinant
CDF, HILDA, D-FACTOR, Differentiation- stimulating factor, Melanoma-derived LPL inhibitor, MLPLI, Emfilermin, Leukemia inhibitory factor, LIF, DIA.
Product # :
CYT-645Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Leukemia Inhibitory Factor (LIF) Murine Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 181 amino acids and having a molecular mass of 20 kDa. The Leukemia Inhibitory Factor (LIF) is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Leukemia Inhibitory Factor (LIF) was lyophilized from a concentrated (1mg/ml) sterile solution containing 20mM Phosphate buffer pH-7.4 and 0.02% Tween-20.
Purity
Greater than 95.0% as determined by(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.Biological Activity
Activity of murine LIF was determined by the M1 cell differentiation assay which was found to be < 0.01 ng/ml, corresponding to a specific activity of 100,000,000 IU/mg.
A standard of 50 Units is defined as the concentration of mouse LIF in 1.0 mL of tissue culture medium that induces the differentiation of 50% of M1 colonies.More Info
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Introduction
Leukemia Inhibitory Factor also called LIF is a lymphoid factor that promotes long-term maintenance of embryonic stem cells by suppressing spontaneous differentiation. Leukemia Inhibitory Factor has several functions such as cholinergic neuron differentiation, control of stem cell pluripotency, bone & fat metabolism, mitogenesis of factor dependent cell lines & promotion of megakaryocyte production in vivo. Human and mouse LIF exhibit a 78% identity in its amino acid sequence.
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Synonyms
CDF, HILDA, D-FACTOR, Differentiation- stimulating factor, Melanoma-derived LPL inhibitor, MLPLI, Emfilermin, Leukemia inhibitory factor, LIF, DIA.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Leukemia Inhibitory Factor (LIF) although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Leukemia Inhibitory Factor (LIF) 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 Leukemia Inhibitory Factor (LIF) in sterile water not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
MSPLPITPVNATCAIRHPCHGNLMNQIKNQLAQLNGSANALFISYYTAQGEPFP NNVEKLCAPNMTDFPSFHGNGTEKTKLVELYRMVAYLSASLTNITRDQKVLNP TAVSLQVKLNATIDVMRGLLSNVLCRLCNKYRVGHVDVPPVPDHSDKEAFQR KKLGCQLLGTYKQVISVVVQAF.
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 :
HLA-F HumanDescription:
Major Histocompatibility Complex Class I F Human Recombinant
CDA12, HLA-5.4, HLA-CDA12, HLAF, HLA class I histocompatibility antigen, alpha chain F, HLA F antigen, Leukocyte antigen F, MHC class I antigen F, HLA-F.
Product # :
PRO-2001Price :
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Description
HLA-F Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 307 amino acids (22-305a.a) and having a molecular mass of 35.1kDa. HLA-F is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
HLA-F protein solution (0.25mg/ml) containing 20mM Tris-HCl buffer (pH 8.0), 0.15M NaCl 20% glycerol and 1mM DTT.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
-
Introduction
Major Histocompatibility Complex Class I F (HLA-F) belongs to the MHC family which takes part in the presentation of antigens to the T cell receptor. HLA-F is a member of the class I molecules which are expressed in virtually all cells. There are 2 classes of HLA antigens. Class I molecules takes an important part in the immune system by presenting peptides derived from the endoplasmic reticulum.
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Synonyms
CDA12, HLA-5.4, HLA-CDA12, HLAF, HLA class I histocompatibility antigen, alpha chain F, HLA F antigen, Leukocyte antigen F, MHC class I antigen F, HLA-F.
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Physical Appearance
Sterile Filtered colorless solution.
-
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
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Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSGSHSLRY FSTAVSRPGR GEPRYIAVEY VDDTQFLRFD SDAAIPRMEP REPWVEQEGP QYWEWTTGYA KANAQTDRVA LRNLLRRYNQ SEAGSHTLQG MNGCDMGPDG RLLRGYHQHA YDGKDYISLN EDLRSWTAAD TVAQITQRFY EAEEYAEEFR TYLEGECLEL LRRYLENGKE TLQRADPPKA HVAHHPISDH EATLRCWALG FYPAEITLTW QRDGEEQTQD TELVETRPAG DGTFQKWAAV VVPPGEEQRY TCHVQHEGLP QPLILRWEQS PQPTIPI.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
Leptin Human, PEGDescription:
Leptin Human Recombinant, PEG
OB Protein, Obesity Protein, OBS, Obesity factor.
Product # :
CYT-1108Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- biological activity
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Description
Pegylated Leptin Human Recombinant produced in E.Coli is a single non-glycosilated polypeptide chain containing 146 amino acids, an additional Ala at N-terminus and one molecule of PEG 20 kDa at its N-terminus acids and having a molecular weight of 35.6kDa. However due to enlarged hydrodymanic volume it runs on the SDS-PAGE as 48 kDa protein and in gel-filtration on Superdex 200 as over 100 kDa protein. Pegylated Leptin Human Recombinant was purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3.
Purity
Greater than 98.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.Biological Activity
Biological Activity is < than 0.1% as determined by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. It’s in vitro activity is 5-7 fold lower than the non-pegylated recombinant human leptin but in vivo it has profound weight reducing effect, resulting mainly from reduced food intake.
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Introduction
Leptin takes an important part in the regulation of energy balance and body weight control.After entering the circulation, Leptin binds LEPRwhich results in the activation of several major signalling pathways. In the hypothalamus Leptin acts as an appetite-regulating factor that induces a decrease in food intake and an increase in energy consumption and also regulates bone mass and secretion of hypothalamo-pituitary-adrenal hormones. In the periphery, increases basal metabolism, regulates pancreatic beta-cell function and insulin secretion and affects innate and adaptive immunity.
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Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Pegylated leptin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution leptin N82K should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Pegylated leptin in sterile water or 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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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 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 :
Prealbumin HumanDescription:
Transthyretin Human
TTHY, TTR, ATTR, TBPA, Transthyretin, Prealbumin, PALB, HsT2651TTHY, TTR, ATTR, TBPA, Transthyretin, Prealbumin, PALB, HsT2651.
Product # :
PRO-2740Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Human Transthyretin dimer protein produced in Human plasma having a molecular mass of 30kD. Under certain conditions it may be shown as a monomer (15kD) or a tetramer (60kD).
Source
Human serum.
Formulation
The protein was lyophilized (0.2 µm filtered) from 20mM NH4HCO3.
Purity
Greater than 96.0%.
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Introduction
Prealbumin is a thyroid hormone-binding protein that transports thyroxine from the bloodstream to the brain. Prealbumin is a carrier protein which transports thyroid hormones in the plasma and cerebrospinal fluid, and also transports retinol (vitamin A) in the plasma. Transthyretin consists of a tetramer of identical subunits and is dominantly produced in the liver. Mutations in Prealbumin are related to amyloid deposition, affecting predominantly peripheral nerve and/or the heart. The diseases caused by mutations include amyloidotic polyneuropathy, euthyroid hyperthyroxinaemia, amyloidotic vitreous opacities, cardiomyopathy, oculoleptomeningeal amyloidosis, meningocerebrovascular amyloidosis, and carpal tunnel syndrome. Prealbumin is an indicator of protein-energy malnutrition since it has a circulating half life of 2 days and reacts swiftly to changes in nutritional status.
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Synonyms
TTHY, TTR, ATTR, TBPA, Transthyretin, Prealbumin, PALB, HsT2651TTHY, TTR, ATTR, TBPA, Transthyretin, Prealbumin, PALB, HsT2651.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Prealbumin Human although stable at room temperature for 3 weeks, should be stored between 2-8°C.
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Solubility
It is recommended to reconstitute the lyophilized Prealbumin Human in phosphate buffer pH > 7 containing 0.15M NaCl.
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Human Virus Test
Starting material donor has been tested and certified negative for antibodies to HIV-1, HIV-2, HCV, HBSAG, Parvovirus B19, Syphilis and HIV/HBV/HCV (PCR).
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 :
F8 HumanDescription:
Coagulation Factor-VIII Human
Coagulation factor VIII, Procoagulant component, Antihemophilic factor, AHF, F8, F8C, F8B, HEMA, FVIII, DXS1253E, F8 protein.
Product # :
PRO-317Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- biological activity
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Description
Human Factor VIII produced from Human Plasma contains 2332 amino acids and having a molecular mass of 330kDa. Factor-VIII is effective in the correction and prevention of severe bleeding episodes attributed to Factor VIII deficiency. The Factor-VIII is purified by proprietary chromatographic techniques.
Source
Human Plasma.
Formulation
The lyophilized protein 200IU/ml was lyophilized from a sterile solution containing 1.5% Glycine, 160mM Calcium chloride and 25mM NaCitrate and 25mM NaCl.
Biological Activity
The potency was found to be 10 Units/mg.
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Introduction
Coagulation factor VIII participates in the intrinsic pathway of blood coagulation; factor VIII is a cofactor for factor IXa which, in the presence of Ca+2 and phospholipids, converts factor X to the activated form Xa. This gene produces two alternatively spliced transcripts. Transcript variant 1 encodes a large glycoprotein, isoform a, which circulates in plasma and associates with von Willebrand factor in a noncovalent complex. This protein undergoes multiple cleavage events. Transcript variant 2 encodes a putative small protein, isoform b, which consists primarily of the phospholipid binding domain of factor VIIIc. This binding domain is essential for coagulant activity. Defects in this gene results in hemophilia A, a common recessive X-linked coagulation disorder.
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Synonyms
Coagulation factor VIII, Procoagulant component, Antihemophilic factor, AHF, F8, F8C, F8B, HEMA, FVIII, DXS1253E, F8 protein.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Factor-VIII although stable at room temperature for 1 week, should be stored desiccated between 2-8°C. Upon reconstitution Factor-VIII should be stored at 4°C.
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Solubility
It is recommended to reconstitute the lyophilized Factor-VIII in sterile 18MΩ-cm H2O at a concentration of 200IU/ml, which can then be further diluted to other aqueous solutions.
Make sure that the vial has reached room temperature prior to its reconstitution, otherwise it might precipitate.
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Human Virus Test
The plasma is collected from donors with Hepatitis B vaccinated. Each unit of plasma has been tested for HBsAg, Anti-HIV-1/2 plus O and Anti-HCV by using the imported kits which are approved by Federal Drug Administration (FDA).
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 :
PMSGDescription:
Pregnant Mare Serum Gonadotropin
Product # :
HOR-272Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
PMSG is a complex glycoprotein obtained from the serum of pregnant mares. This 43-63 kda protein is capable of supplementing and being substituted for the follicle stimulating and interstitial cell-stimulating hormone of the anterior pituitary gland in both the male and female. Thus PMSG-Intervet stimulates development of the ovarian follicle in the female.
Source
Serum of pregnant mares.
Formulation
The PMSG was lyophilized with no additives.
More Info
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Introduction
PMSG Hormone is a well know used hormone together with progestogen to increase ovulation just before to artificial insemination. PMSG hormone is a placental glycoprotein produced from the serum of pregnant mares. PMSG comprises of an alfa subunit and a beta subunit. PMSG hormone is secreted from endometrial cups within the pregnant mare uterus aging from 40 to 130 days into their maturation, and once extracted, it can been used to promote artificially estrus in female animals. These assemblies produce PMSG hormone to induce mare's ovarian and repsouctive structures. PMSG can induce the growth of follicles by ovaries and results in ovulatation. PMSG hormone has an about a 4 day half-life of bioactivity in species other than horses. The extended biological activity can cause ovarian stimulation and ovulation. However, PMSG use alone often causes cystic ovarian disease because of the unrestrained ovarian stimulation and due to the sugar molecules which decrease clearance of the hormone. PMSG is more likely to be used than other pituitary hormones due to the extended circulatory half-life. PMSG solely exhibits luteinizing hormone like activity, however in other animal classes it has FSH & LH like activity.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized PMSG although stable at room temperature for 3 weeks, should be stored between 2-8°C.
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Solubility
It is recommended to reconstitute the lyophilized PMSG in sterile 18M-cm H2O at a concentration of 1000 IU/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.