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Search results

1000 results found for “Selectin”

Name

Description

Product #

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  • View Data Sheet

    Name :

    Leptin Mouse (D23L)

    Description:

    Leptin D23L Mutant Mouse Recombinant

    Product # :

    CYT-1249

    Price :

    Quantity :

    Shipping Method :

    Room Temp Icon

    Shipped at Room temp

    Add To Cart

    More Info

    • description
    • source
    • formulation
    • purity
    • biological activity
    • More Info

    Description

    Leptin Mutant D23L Mouse Recombinant is a single non-glycosilated polypeptide chain containing 146 amino acids and additional Ala at N-terminus. The Mouse Leptin having a molecular mass of 16 kDa and was purified by proprietary chromatographic techniques.

    Source

    Escherichia coli.

    Formulation

    The Mouse Leptin was lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3.

    Purity

    Greater than 95.0% as determined by:

    (a) Gel filtration analysis.

    (b) Analysis by SDS-PAGE.

    Biological Activity

    Leptin Mouse is able to induce proliferation of BA/F3 cells stably transfected with the long form of human leptin receptor but its affinity toward this receptor was ~ 25-fold higher compared to non-mutated mouse leptin.

    More Info

    • Physical Appearance

      White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Leptin Mouse Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1mg/ml and up to 2mM and filter sterilization Mouse Leptin can be stored at 4°C for 2-3 months. Please prevent freeze-thaw cycles.

    • Solubility

      It is recommended to reconstitute the lyophilized Leptin Mouse 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.

    • Amino Acid Sequence

      The sequence of the first five N-terminal amino acids is Ala-Val-Pro-Ile-Gln

    • Background

      Leptin’s main part is to regulate long-term energy balance. Leptin produced mainly by adipocytes and is encoded by the LEP gene. Leptin effects mainly on leptin receptors in the cell mambrane of different cells in the human body. The leptin receptor is found on various cell types. The leptin receptor is a single-transmembrane-domain type 1 cytokine receptor. leptin levels influence satiety, appetite and triggers behaviors which lead to energy savings High leptin levels are interpreted by the brain that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.

    • Protein content

      Protein quantization was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.2 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value was calculated by DNA man program.

    ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

    Leptin Mouse Mutant
  • View Data Sheet

    Name :

    SIGLEC6 Human

    Description:

    Sialic Acid Binding Ig Like Lectin 6 Human Recombinant

    Sialic Acid Binding Ig Like Lectin 6, Obesity-Binding Protein 1, CD33 Antigen-Like 1, CDW327, CD33L1, CD33L, OBBP1, Sialic Acid Binding Ig-Like Lectin 6, Sialic Acid-Binding Ig-Like Lectin 6, CD327 Antigen, Siglec-6, CD33L2, OB-BP1, CD327, SIGLEC6.

    Product # :

    PRO-2450

    Price :

    Quantity :

    Shipping Method :

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    Shipped with Ice Packs

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    More Info

    • description
    • source
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    • More Info

    Description

    SIGLEC6 Human Recombinant produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 563 amino acids (27-347a.a.) and having a molecular mass of 62.6kDa (Molecular size on SDS-PAGE will appear at approximately 70-100kDa). SIGLEC6 is expressed with a 239 amino acids hIgG-His tag at C-Terminus and purified by proprietary chromatographic techniques.

    Source

    Sf9, Baculovirus cells.

    Formulation

    SIGLEC6 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

    • Introduction

      Sialic acid-binding Ig-like lectin 6 isoform 1 (SIGLEC6) is a member of immunoglobulin superfamily and SIGLEC (sialic acid binding Ig-like lectin) family. SIGLEC6 mediates sialic-acid dependent binding to cells and binds to alpha-2, 6-linked sialic acid. The SIGLEC6 protein localizes in numerous compartments such as membrane fraction, extracellular region and so on. The SIGLEC6 receptor binds sialyl-TN glycans and leptin. Placental expression SIGLEC6 is upregulated in preeclampsia.

    • Synonyms

      Sialic Acid Binding Ig Like Lectin 6, Obesity-Binding Protein 1, CD33 Antigen-Like 1, CDW327, CD33L1, CD33L, OBBP1, Sialic Acid Binding Ig-Like Lectin 6, Sialic Acid-Binding Ig-Like Lectin 6, CD327 Antigen, Siglec-6, CD33L2, OB-BP1, CD327, SIGLEC6.

    • Physical Appearance

      Sterile filtered colorless solution.

    • Stability

      Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.

    • Amino Acid Sequence

      ADLQERRFQL EGPESLTVQE GLCVLVPCRL PTTLPASYYG YGYWFLEGAD VPVATNDPDE EVQEETRGRF HLLWDPRRKN CSLSIRDARR RDNAAYFFRL KSKWMKYGYT SSKLSVRVMA LTHRPNISIP GTLESGHPSN LTCSVPWVCE QGTPPIFSWM SAAPTSLGPR TTQSSVLTIT PRPQDHSTNL TCQVTFPGAG VTMERTIQLN VSYAPQKVAI SIFQGNSAAF KILQNTSSLP VLEGQALRLL CDADGNPPAH LSWFQGFPAL NATPISNTGV LELPQVGSAE EGDFTCRAQH PLGSLQISLS LFVHWKPEGR AGGVLEPKSC DKTHTCPPCP APELLGGPSV FLFPPKPKDT LMISRTPEVT CVVVDVSHED PEVKFNWYVD GVEVHNAKTK PREEQYNSTY RVVSVLTVLH QDWLNGKEYK CKVSNKALPA PIEKTISKAK GQPREPQVYT LPPSRDELTK NQVSLTCLVK GFYPSDIAVE WESNGQPENN YKTTPPVLDS DGSFFLYSKL TVDKSRWQQG NVFSCSVMHE ALHNHYTQKS LSLSPGKHHH 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.

    Siglec6 Human
  • View Data Sheet

    Name :

    SIGLEC5 Human

    Description:

    Sialic Acid Binding Ig Like Lectin 5 Human Recombinant

    Sialic Acid Binding Ig Like Lectin 5, Obesity-Binding Protein 2, OB-Binding Protein 2, CD33 Antigen-Like 2, SIGLEC-5, CD33L2, OB-BP2, OBBP2, Sialic Acid-Binding Immunoglobulin-Like Lectin 5, Sialic Acid Binding Ig-Like Lectin 5, Sialic Acid-Binding Ig-Like Lectin 5, CD170 Antigen, CD170, Sialic acid-binding Ig-like lectin 5, Siglec-5, CD33 antigen-like 2, Obesity-binding protein 2, OB-BP2, OB-binding protein 2, CD170.

    Product # :

    PRO-2432

    Price :

    Quantity :

    Shipping Method :

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    Shipped with Ice Packs

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    More Info

    • description
    • source
    • formulation
    • purity
    • More Info

    Description

    SIGLEC5 Human Recombinant produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 667 amino acids (17-441a.a.) and having a molecular mass of 74.2kDa (Molecular size on SDS-PAGE will appear at approximately 70-100kDa). SIGLEC5 is expressed with a 239 amino acid hIgG-His Tag at C-Terminus and purified by proprietary chromatographic techniques.

    Source

    Sf9, Baculovirus cells.

    Formulation

    SIGLEC5 protein solution (0.25mg/ml) contains Phosphate Buffered Saline (pH 7.4).

    Purity

    Greater than 90.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      Sialic Acid Binding Ig Like Lectin 5, also known as SIGLEC5 is a member of the immunoglobulin superfamily and SIGLEC family. SIGLEC5 contains of 2 Ig-like C2-type domains and 1 Ig-like V-type domain. In addition, SIGLEC5 is expressed by monocytic/myeloid lineage cells. SIGLEC5 is expressed at high levels in peripheral blood leukocytes, spleen, and at lower levels in lymph node, appendix, pancreas, lung, and thymus.

    • Synonyms

      Sialic Acid Binding Ig Like Lectin 5, Obesity-Binding Protein 2, OB-Binding Protein 2, CD33 Antigen-Like 2, SIGLEC-5, CD33L2, OB-BP2, OBBP2, Sialic Acid-Binding Immunoglobulin-Like Lectin 5, Sialic Acid Binding Ig-Like Lectin 5, Sialic Acid-Binding Ig-Like Lectin 5, CD170 Antigen, CD170, Sialic acid-binding Ig-like lectin 5, Siglec-5, CD33 antigen-like 2, Obesity-binding protein 2, OB-BP2, OB-binding protein 2, CD170.

    • Physical Appearance

      Sterile Filtered colorless solution.

    • Stability

      Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.

    • Amino Acid Sequence

      ADLEKPVYEL QVQKSVTVQE GLCVLVPCSF SYPWRSWYSS PPLYVYWFRD GEIPYYAEVV ATNNPDRRVK PETQGRFRLL GDVQKKNCSL SIGDARMEDT GSYFFRVERG RDVKYSYQQN KLNLEVTALI EKPDIHFLEP LESGRPTRLS CSLPGSCEAG PPLTFSWTGN ALSPLDPETT RSSELTLTPR PEDHGTNLTC QMKRQGAQVT TERTVQLNVS YAPQTITIFR NGIALEILQN TSYLPVLEGQ ALRLLCDAPS NPPAHLSWFQ GSPALNATPI SNTGILELRR VRSAEEGGFT CRAQHPLGFL QIFLNLSVYS LPQLLGPSCS WEAEGLHCRC SFRARPAPSL CWRLEEKPLE GNSSQGSFKV NSSSAGPWAN SSLILHGGLS SDLKVSCKAW NIYGSQSGSV LLLQGRSNLG TGVVPAALLE PKSCDKTHTC PPCPAPELLG GPSVFLFPPK PKDTLMISRT PEVTCVVVDV SHEDPEVKFN WYVDGVEVHN AKTKPREEQY NSTYRVVSVL TVLHQDWLNG KEYKCKVSNK ALPAPIEKTI SKAKGQPREP QVYTLPPSRD ELTKNQVSLT CLVKGFYPSD IAVEWESNGQ PENNYKTTPP VLDSDGSFFL YSKLTVDKSR WQQGNVFSCS VMHEALHNHY TQKSLSLSPG KHHHHHH.

    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.

    Siglec5 Human
  • View Data Sheet

    Name :

    Resistin Rat, His

    Description:

    Resistin Rat Recombinant, His Tag

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

    Product # :

    CYT-458

    Price :

    Quantity :

    Shipping Method :

    Room Temp Icon

    Shipped at Room temp

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    More Info

    • description
    • source
    • formulation
    • purity
    • More Info

    Description

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

    Source

    Escherichia Coli.

    Formulation

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

    Purity

    Greater than 95% as determined by SDS-PAGE.

    More Info

    • Introduction

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

    • Synonyms

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

    • Physical Appearance

      Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Store lyophilized protein at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.

    • Solubility

      It is recommended to add deionized water to prepare a working stock solution of approximately 0.5mg/ml and let the lyophilized pellet dissolve completely. Product is not sterile! Please filter the product by an appropriate sterile filter before using it on cell culture.

    • Amino Acid Sequence

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

    ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

    Resistin Rat
  • View Data Sheet

    Name :

    Leptin qA Rat, PEG

    Description:

    Leptin Quadruple Antagonist, Pegylated Rat Recombinant

    OB Protein, Obesity Protein, OBS, Obesity factor.

    Product # :

    CYT-1241

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    Description

    Leptin Pegylated Quadruple Antagonist Rat Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids. The Rat Leptin antagonist is bound to 20 kDa mono-PEG at N-terminus, resulting in 35.6 kDa. The Rat Leptin Pegylated Quadruple Antagonist was mutated, resulting in D23L/L39A/D40A/F41A that was purified by proprietary chromatographic techniques.

    Source

    Escherichia coli.

    Formulation

    The Rat Leptin Pegylated Quadruple Antagonist was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.

    Purity

    Greater than 98.0% as determined by:

    (a) Gel filtration analysis.

    (b) Analysis by SDS-PAGE.

    Biological Activity

    Rat Leptin Pegylated Quadruple Antagonist inhibits leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Its in vitro.

    More Info

    • Synonyms

      OB Protein, Obesity Protein, OBS, Obesity factor.

    • Physical Appearance

      White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Rat Leptin Pegylated Quadruple Antagonist although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 and up to 2mM of rat pegylated leptin antagonist and filter sterilization rat pegylated leptin antagonist can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.

    • Solubility

      It is recommended to reconstitute the lyophilized Rat Leptin Pegylated Quadruple Antagonist in sterile water or sterile 0.4% NaHCO3adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.

    • Background

      Leptin is a hormone which mainly produced by adipocytes. Leptin’s main part is to regulate long-term energy balance. Leptin is encoded by the LEP gene. Leptin receptors are expressed by various brain and peripheral cell types. leptin levels influence satiety, appetite and triggers behaviors which lead to energy savings. High leptin levels are interpreted by the brain that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.

    ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

    Leptin Rat Peg Qa
  • View Data Sheet

    Name :

    Vimentin Bovine

    Description:

    Bovine Vimentin

    Vimentin, Vim, FLJ36605.

    Product # :

    PRO-525

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    Description

    Bovine Vimentin protein produced in Bovine Lens, having a molecular weight of 57 kDa.

    Source

    Bovine Lens.

    Formulation

    The protein (1mg/ml) was lyophilized from a 1mg/ml solution containing 10mM sodium phosphate pH 7.5, 6M urea, 2mM DTT, 1mM EDTA and 10mM methylammonium chloride.

    Purity

    Greater than 98.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      Vimentin expression in human malignant glioma cells depends on cellular density, algorithms of drug delivery and chemo/radio treatment. Vimentin and detyrosinated microtubules provide structural support for the extensive microtentacles observed in detached tumor cells and a mechanism to promote successful metastatic spread. Primary colorectal carcinomas display aberrant expression of vimentin, and have activated Notch and TGFbeta signaling pathways. Vimentin is a strong arterial substrate for transglutaminases. Transglutaminase-mediated vimentin dimerization results in a novel unifying pathway by which vasodilatory and remodeling responses may be regulated. Ablation of vimentin expression inhibits migration and invasion of colon and breast cancer cell lines. Vimentin is the main intermediate filament protein in mesenchymal cells and is therefore of value in the differential diagnosis of undifferentiated neoplasms.

    • Synonyms

      Vimentin, Vim, FLJ36605.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

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

    • Reconstitution to filaments

      After vimentin is dissolved in 6M urea buffer (see above), protofilaments and filament complexes are obtained by dialyzing the resulting polypeptide solution stepwise to a concentration of 4M urea and then to low salt condition (50mM NaCl, 2mM dithiothreitol, 10mM Sodium Phosphate, pH 7.4). For immunization purposes, the solution can be further dialyzed against PBS (phosphate buffered saline, e.g. Dulbecco''s PBS).- Hatzfeld M. and Franke W.W. (1985). J. Cell Biol. 101, 1826-1841.- Hatzfeld M. et al. (1987). J. Mol. Biol. 197, 237-255.

    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.

    Vimentin Bovine
  • View Data Sheet

    Name :

    Leptin Receptor Chicken

    Description:

    Leptin Receptor Chicken Recombinant

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

    Product # :

    CYT-509

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    Description

    Leptin Binding Domain Chicken Recombinant also called Leptin Receptor produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 208 amino acids and having a molecular mass of 24.5 kDa. Chicken Leptin Receptor consists of the cytokine binding domain of leptin receptor amino acids 420-626 of chicken leptin receptor.The Leptin Binding Domain is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    The protein was filter sterilized and stored at 4°C (0.2 to 0.5 mg/ml) solution of Tris-HCl buffer, pH 9.0 with 150mM NaCl.

    Purity

    Greater than 99.0% as determined by:
    (a) Analysis by SEC-HPLC.
    (b) Analysis by SDS-PAGE.

    More Info

    • Introduction

      Leptin Receptor is a part of the gp130 family of cytokine receptors that stimulate gene transcription by activating cytosolic STAT proteins. Leptin Receptor plays a role in the regulation of fat metabolism and in novel hematopoietic pathway that is obligatory for normal lymphopoiesis. Leptin Receptorparticipates in the regulation of counter-regulatory response to hypoglycemia by inhibiting neurons of the parabrachial nucleus.Leptin Receptoraffectsspecifically on T lymphocyte responses.

    • Synonyms

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

    • Physical Appearance

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

    • Stability

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

    • Amino Acid Sequence

      The sequence of the first six N-terminal amino acids was determined and was found to be Ala-Ile-Asp-Val-Asn-Ile Biological ActivityBiological Activity is evidenced by high affinity binding of mammalian leptins at 1:1 molar ratio.

    • Protein content

      Protein quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbency value of 2.45 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a calibrated solution of Leptin Binding Domain as a Reference Standard.

    ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

    Leptin Receptor Chicken
  • View Data Sheet

    Name :

    Vimentin Human

    Description:

    Vimentin Human Recombinant

    Vimentin, Vim, FLJ36605.

    Product # :

    PRO-309

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    Description

    Vimentin Human Recombinant produced in E.coli cells is a single non-glycosylated protein containing 465 amino acids chain and having a molecular mass of 53.5kDa. The Vimentin is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    The Vimentin was lyophilized from a 0.2µm filtered concentrated solution in 30% Acetonitrile and 0.1% TFA.

    Purity

    Greater than 95.0% as determined by:
    (a) Analysis by RP-HPLC.
    (b) Analysis by SDS-PAGE.

    More Info

    • Introduction

      Vimentin expression in human malignant glioma cells depends on cellular density, algorithms of drug delivery and chemo/radio treatment. Vimentin and detyrosinated microtubules provide structural support for the extensive microtentacles observed in detached tumor cells and a mechanism to promote successful metastatic spread. Primary colorectal carcinomas display aberrant expression of vimentin, and have activated Notch and TGFbeta signaling pathways. Vimentin is a strong arterial substrate for transglutaminases. Transglutaminase-mediated vimentin dimerization results in a novel unifying pathway by which vasodilatory and remodeling responses may be regulated. Ablation of vimentin expression inhibits migration and invasion of colon and breast cancer cell lines. Vimentin is the main intermediate filament protein in mesenchymal cells and is therefore of value in the differential diagnosis of undifferentiated neoplasms.

    • Synonyms

      Vimentin, Vim, FLJ36605.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Vimentin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Vimentin 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 Vimentin in sterile 4mM HCl not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      STRSVSSSSY RRMFGGPGTA SRPSSSRSYV TTSTRTYSLG SALRPSTSRS LYASSPGGVY ATRSSAVRLR SSVPGVRLLQ DSVDFSLADA INTEFKNTRT NEKVELQELN DRFANYIDKV RFLEQQNKIL LAELEQLKGQ GKSRLGDLYE EEMRELRRQV DQLTNDKARV EVERDNLAED IMRLREKLQE EMLQREEAEN TLQSFRQDVD NASLARLDLE RKVESLQEEI AFLKKLHEEE IQELQAQIQE QHVQIDVDVS KPDLTAALRD VRQQYESVAA KNLQEAEEWY KSKFADLSEA ANRNNDALRQ AKQESTEYRR QVQSLTCEVD ALKGTNESLE RQMREMEENF AVEAANYQDT IGRLQDEIQN MKEEMARHLR EYQDLLNVKM ALDIEIATYR KLLEGEESRI SLPLPNFSSL NLRETNLDSL PLVDTHSKRT LLIKTVETRD GQVINETSQH HDDLE.

    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.

    Vimentin Human
  • View Data Sheet

    Name :

    Globular Adiponectin Human

    Description:

    Globular Adiponectin Human Recombinant

    Acrp30, AdipoQ, GBP-28, APM-1, ACDC.

    Product # :

    CYT-615

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    Description

    gAcrp30 Human Recombinant produced in E.Coli is a non-glycosylated, Polypeptide chain containing 145 amino acids and having a molecular mass of 16.7kDa. The gAcrp30 is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Sterile filtered and lyophilized from 10mM sodium phosphate & 0.5mM DTT, pH 7.5.

    Purity

    Greater than 95% as determined by SDS-PAGE.

    Biological Activity

    gAcrp30 activity is determined by its ability to inhibit the proliferation of mouse M1 cells. The expected ED50 for this effect is 669ng/ml, corresponding to a specific activity of 1.5x103units/mg.

    More Info

    • Introduction

      gAcrp30 globular protein, exists as a result of proteolytic processing of adiponectin. Adiponectin is manufactured and secreted solely by adipocytes, and is a highly obtained plasma protein, accounting for up to 0.05% of total serum protein. Similar to Adiponectin, gAcrp30 is able of lowering hyperglycemia and reversing INS resistance. In addition, gAcrp30 is an significant protein that is involved in promoting fat loss by signaling muscle to absorb and burn Free-Fatty Acids. AdipoR1 & AdipoR2 are the 2 signaling receptors for adiponectin and gAcrp30 that were recently been identified.

    • Synonyms

      Acrp30, AdipoQ, GBP-28, APM-1, ACDC.

    • Stability

      For long term, store lyophilized protein at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time two weeks.

    • Solubility

      We recommended reconstituting gAcrp30 at a concentration of 0.1mg per ml with 10mM sodium phosphate & 0.5mM DTT, pH 7.5. which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      MKGEPGEGAY VYRSAFSVGL ETYVTIPNMP IRFTKIFYNQ QNHYDGSTGK FHCNIPGLYY FAYHITVYMK DVKVSLFKKD KAMLFTYDQY QENNVDQASG SVLLHLEVGD QVWLQVYGEG ERNGLYADND NDSTFTGFLL YHDTN.

    • Background

      What is the molecular weight/Mw of ADIPONECTIN Protein?
      ADIPONECTIN Protein has a total Mw of 16.7kDa.

      What is the source or expression system of ADIPONECTIN Protein?
      Escherichia Coli.

      What is the Purity of ADIPONECTIN Protein?
      ADIPONECTIN Protein is >95% pure as determined by SDS-PAGE.

      What is the Biological Activity of ADIPONECTIN Protein?
      gAcrp30 activity is determined by its ability to inhibit the proliferation of mouse M1 cells. The expected ED50 for this effect is 669ng/ml, corresponding to a specific activity of 1.5x103units/mg.

      What is the amino acid sequence of ADIPONECTIN Protein?
      MKGEPGEGAY VYRSAFSVGL ETYVTIPNMP IRFTKIFYNQ QNHYDGSTGK FHCNIPGLYY FAYHITVYMK DVKVSLFKKD KAMLFTYDQY QENNVDQASG SVLLHLEVGD QVWLQVYGEG ERNGLYADND NDSTFTGFLL YHDTN.

      What applications can ADIPONECTIN Protein be used in?
      ADIPONECTIN Protein can probably be used in western blot, ELISA and Lateral Flow.

      What is the endotoxin level for ADIPONECTIN Protein?
      The endotoxin level is minimal, ADIPONECTIN 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.

    Globular Adiponectin Human
  • View Data Sheet

    Name :

    Leptin Human, Mutant

    Description:

    Leptin Mutant D23L Human Recombinant

    OB Protein, Obesity Protein, OBS, Obesity factor.

    Product # :

    CYT-1243

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    Description

    Human Leptin Mutant D23L is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus and having a molecular mass of ~ 16 kDa. Leptin Mutant was purified by proprietary chromatographic techniques.

    Source

    Escherichia coli.

    Formulation

    Leptin Mutant was lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3.

    Purity

    Greater than 95.0% as determined by:

    (a) Gel filtration analysis.

    (b) Analysis by SDS-PAGE.

    Biological Activity

    Human Leptin Mutant D23L is fully biologically active as evidenced by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor.

    More Info

    • Synonyms

      OB Protein, Obesity Protein, OBS, Obesity factor.

    • Physical Appearance

      White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Human Leptin Mutant D23L although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 Leptin mutant mg/ml and up to 2mM and filter sterilization LEP mutant can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.

    • Solubility

      It is recommended to reconstitute the lyophilized Leptin Mutant 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.

    • Amino Acid Sequence

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

    • Background

      Leptin’s main part is to regulate long-term energy balance. Leptin is a hormone which mainly produced by adipocytes and is encoded by the LEP gene. Leptin effects mainly on leptin receptors in the cell mambrane of various cells in the human body. The leptin receptor is found on a wide range of cell types. The leptin receptor is a single-transmembrane-domain type 1 cytokine receptor. leptin levels influence satiety, appetite and triggers behaviors which lead to energy savings High leptin levels are interpreted by the brain that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.

    ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

    Mutant Leptin
  • View Data Sheet

    Name :

    Leptin Chicken

    Description:

    Leptin Chicken Recombinant

    OB Protein, Obesity Protein, OBS, Obesity factor.

    Product # :

    CYT-505

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    Description

    Leptin Chicken Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 145 amino acids and having a molecular mass of 16 kDa.The Leptin is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    The protein was lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3.

    Purity

    Greater than 95.0% as determined by:
    (a) Analysis by SEC-HPLC.
    (b) Analysis by SDS-PAGE.

    Biological Activity

    Biological active as evidenced by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Its activity is however 5-10 fold lower as compared to mammalian leptins.

    More Info

    • Introduction

      A 16-kDa peptide hormone secreted from white adipocytes and implicated in the regulation of food intake and energy balance. Leptin provides the key afferent signal from fat cells in the feedback system that controls body fat stores.

    • Synonyms

      OB Protein, Obesity Protein, OBS, Obesity factor.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Leptin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Leptin should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.

    • Solubility

      It is recommended to reconstitute the lyophilized Leptin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

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

      Recombinant Chicken leptin was produced according to the a.a. sequence published by the groups of Taouis & McMutry, see Raver et al. Protein Expr Purif. 1998 Dec; 14(3):403-8.

    • Protein content

      Protein quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbency value of 0.19 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC,using calibrated solution of Leptin Chicken as a Reference Standard.

    ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

    Leptin Chicken
  • View Data Sheet

    Name :

    Resistin Human (64-110)

    Description:

    Resistin (64-110) Human Recombinant

    Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF.

    Product # :

    CYT-1232

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    Description

    The Resistin Human is created as a recombinant protein with a 4kda N-terminal fusion of His Tag. The Resistin His-Tagged Fusion Protein, produced in E. coli, is a 12kDa protein containing 47 amino acid residues of the Resistin Human, 64-110 amino acids.

    Source

    Escherichia Coli.

    Formulation

    Each mg was lyophilized with 1xPBS, 0.4% SDS and 4mM DTT.

    Purity

    Greater than 80% as determined by SDS-PAGE.

    More Info

    • Synonyms

      Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF.

    • Physical Appearance

      Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Store lyophilized Resistin at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.

    • Solubility

      It is recommended to add deionized water to prepare a working stock solution of approximately 0.5mg/ml and let the lyophilized pellet dissolve completely. Product is not sterile! Please filter the product by an appropriate sterile filter before using it on cell culture.

    • Background

      Human resistin is an adipokine primarily secreted by adipose tissue, mainly in response to obesity and inflammatory conditions.

      Resistin Function

      Resistin takes part in insulin resistance, which can be the cause of the development of type 2 diabetes. Resistin can also affect glucose metabolism and insulin signalling.

      Regulation

      Levels of resistin are influenced by factors such as inflammation, obesity and certain hormones. It tends to increase in conditions associated with obesity and metabolic syndrome.

      Clinical Relevance

      Elevated levels of resistin have been associated with obesity-related conditions, cardiovascular diseases, and metabolic disorders. Resisting is considered as a potential biomarker for these conditions.

      Resistin Mechanism

      Resistin promotes insulin resistance through different pathways such as the modulation of inflammatory processes and the inhibition of insulin signaling in target tissues like liver and muscle.

      Research

      Ongoing studies are exploring resistin’s role in metabolic regulation, the exact mechanisms of action of resistin and its potential as a therapeutic target for treating metabolic diseases.

      Overall, resistin is a critical factor in metabolic health, mainly in the context of diabetes and obesity.

    ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

    Resistin Human Protein
  • View Data Sheet

    Name :

    Resistin Human

    Description:

    Resistin Human Recombinant

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

    Product # :

    CYT-456

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    Description

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

    Source

    Escherichia Coli.

    Formulation

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

    Purity

    Greater than 95% as determined by SDS-PAGE.

    More Info

    • Introduction

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

    • Synonyms

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

    • Physical Appearance

      Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Store lyophilized protein at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.

    • Solubility

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

    • Amino Acid Sequence

      MSSKTLCSME EAINERIQEV AGSLIFRAIS SIGLECQSVT SRGDLATCPR GFAVTGCTCG SACGSWDVRA ETTCHCQCAG MDWTGARCCR VQP

    ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

    Resistin Human
  • View Data Sheet

    Name :

    Prolactin Human, His

    Description:

    Prolactin Human Recombinant, His Tag

    Mammotropin, Luteotropic hormone, Luteotropin, PRL.

    Product # :

    CYT-493

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    Description

    Prolactin-His Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 199 amino acids fragment (29-227) and having a molecular mass of 23 kDa with an amino-terminal hexahistidine tag. The Prolactin is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Prolactin His is supplied in 1x PBS and 50% glycerol.

    Purity

    Greater than 95.0% as determined by(a) Analysis by RP-HPLC.
    (b) Analysis by SDS-PAGE.

    More Info

    • 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.

    • Synonyms

      Mammotropin, Luteotropic hormone, Luteotropin, PRL.

    • Physical Appearance

      Sterile Filtered clear solution.

    • Stability

      Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. Please avoid freeze thaw cycles.

    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.

    Prolactin Human His
  • View Data Sheet

    Name :

    Polcalcin Phl p 7

    Description:

    Pollen Allergen Phl p 7 Recombinant

    Polcalcin Phl p 7, Calcium-binding pollen allergen Phl p 7, P7, Phl p 7.

    Product # :

    ALR-015

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    Description

    Recombinant Polcalcin Phl p 7 produced in SF9 is a glycosylated, polypeptide chain having a calculated molecular mass of 9.0 kDa. Polcalcin Phl p 7 is purified by proprietary chromatographic techniques.

    Source

    Sf9 insect cells.

    Formulation

    Polcalcin Phl p 7 is supplied in 20mM HEPES buffer pH-8.0, 0.2M NaCl, 1mM CaCl2 and 20% Glycerol.

    Purity

    Greater than 95.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      Phl p 7.0101 is a secondary allergen of timothy grass pollen, which is non-glycosylated protein. Grass pollen-sensitized individuals show IgE antibodies in their blood system. Phl p 7.0101 is a calcium binding protein with similar sequence to pollen antigens that exist in different plants, hence, cross-reactions are possible.

    • Synonyms

      Polcalcin Phl p 7, Calcium-binding pollen allergen Phl p 7, P7, Phl p 7.

    • Physical Appearance

      Sterile Filtered clear solution.

    • Stability

      Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. Avoid multiple freeze-thaw cycles.

    • Immunological Functions

      1. Binds IgE 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.

    Polcalcin Phl P 7
  • View Data Sheet

    Name :

    Leptin tA Mouse

    Description:

    Leptin Antagonist Triple Mutant Mouse Recombinant

    Product # :

    CYT-354

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    • source
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    Description

    Leptin Antagonist Triple Mutant Mouse Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a molecular mass of ~ 16 kDa, LEP was mutated, resulting in L39A/D40A/F41A mutant. Leptin Antagonist Triple Mutant Mouse Recombinant was purified by proprietary chromatographic techniques.

    Source

    Escherichia coli.

    Formulation

    The protein was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.

    Purity

    Greater than 99.0% as determined by:
    (a) Gel filtration analysis.
    (b) Analysis by SDS-PAGE.

    Biological Activity

    ProSpec’s Leptin Antagonist Triple Mutant Mouse Recombinant is capable of inhibiting Leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human Leptin receptor. It also inhibits various Leptin effects in several in vitro bioassays.

    More Info

    • Physical Appearance

      White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Leptin Antagonist Triple Mutant Mouse Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 Leptin mutant mg/ml and up to 2 mM and filter sterilization LEP mutant can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested.Please prevent freeze-thaw cycles.

    • Solubility

      It is recommended to reconstitute the lyophilized Leptin Antagonist Triple Mutant Mouse Recombinant in sterile water or sterile 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.

    • 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 quantization was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.201 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).

    ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

    Leptin Ta Mouse
  • View Data Sheet

    Name :

    Resistin Rat

    Description:

    Resistin Rat Recombinant

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

    Product # :

    CYT-1129

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    Description

    Resistin Rat Recombinant produced in E.Coli is disulfide-linked homodimer consisting of 2x95 amino acid polypeptide chains and having a molecular mass of approximately 20.2kDa.Resistin is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Lyophilized from a 0.2μm filtered concentrated solution in PBS, pH7.4 and 0.02 % Tween-20.

    Purity

    Greater than 97.0% as determined by:
    (a) Analysis by RP-HPLC.
    (b) Analysis by SDS-PAGE.

    More Info

    • Introduction

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

    • Synonyms

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

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Resistin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Resistin should be stored at 4°C between 2-7 days and for future use below -18°C. Please prevent freeze-thaw cycles.

    • Solubility

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

    • Amino Acid Sequence

      MPSMSLCPMD EAISKKINQD FSSLLPAAMK NTVLHCWSVS SRGRLASCPE GTTVTSCSCG SGCGSWDVRE DTMCHCQCGS IDWTAARCCT LRVGS.

    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.

    Rat Resistin Protein
  • View Data Sheet

    Name :

    PMSG

    Description:

    Pregnant Mare Serum Gonadotropin

    Product # :

    HOR-272

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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

    • 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.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized PMSG although stable at room temperature for 3 weeks, should be stored between 2-8°C.

    • 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.

    Pmsg
  • View Data Sheet

    Name :

    SCGB1D1 Human

    Description:

    Secretoglobin Family 1D, Member 1 Human Recombinant

    Secretoglobin family 1D member 1, Lipophilin-A, SCGB1D1, LIPHA, LPNA, LIPA, LPHA.

    Product # :

    PRO-1602

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    Description

    SCGB1D1 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain (a.a 22-90) containing 79 amino acids including a 10 a.a N-terminal His tag. The total molecular mass is 8.8kDa (calculated).

    Source

    Escherichia Coli.

    Formulation

    SCGB1D1 filtered (0.4 µm) and lyophilized from 0.5mg/ml in 20mM Tris buffer and 50mM NaCl, pH 7.5.

    Purity

    Greater than 95.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      Secretoglobin Family 1D, Member 1 (SCGB1D1) belongs to the lipophilin subfamily, part of the uteroglobin superfamily, and is an ortholog of prostatein (which is the major secretory glycoprotein of the rat ventral prostate gland). SCGB1D1 binds androgens and other steroids. In addition SCGB1D1 binds chemotherapeutic drugs during the prostate cancer treatment. Steroid hormones regulate the SCGB1D1 transcription. SCGB1D1 is secreted into extracellular space. SCGB1D1 gene product represents one component of a heterodimeric molecule found in human tears whose elution profile is consistent with prostatein (which is a tetrameric molecule comprised of 3 peptide components in heterodimers).

    • Synonyms

      Secretoglobin family 1D member 1, Lipophilin-A, SCGB1D1, LIPHA, LPNA, LIPA, LPHA.

    • Physical Appearance

      Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Store lyophilized protein at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.

    • Solubility

      It is recommended to add deionized water to prepare a working stock solution of approximately 0.5mg/ml and let the lyophilized pellet dissolve completely. SCGB1D1 is not sterile! Please filter the product by an appropriate sterile filter before using it in the cell culture.

    • Amino Acid Sequence

      MKHHHHHHAS VVCQALGSEI TGFLLAGKPV FKFQLAKFKA PLEAVAAKME VKKCVDTMAY EKRVLITKTL GKIAEKCDR.

    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.

    Scgb1D1 Human
  • View Data Sheet

    Name :

    Resistin Human, HEK

    Description:

    Resistin Human Recombinant, HEK

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

    Product # :

    CYT-1183

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    Description

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

    Source

    HEK293 cells.

    Formulation

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

    Purity

    Greater than 95.0% as determined by SDS-PAGE.

    More Info

    • Introduction

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

    • Synonyms

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

    • Physical Appearance

      Sterile Filtered colorless solution.

    • Stability

      Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.

    • Amino Acid Sequence

      KTLCSMEEAI NERIQEVAGS LIFRAISSIG LECQSVTSRG DLATCPRGFA VTGCTCGSAC GSWDVRAETT CHCQCAGMDW TGARCCRVQP HHHHHH

    ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

    Resistin Protein
  • View Data Sheet

    Name :

    Leptin tA Rat

    Description:

    Leptin Antagonist Triple Mutant Rat Recombinant

    Product # :

    CYT-355

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    • description
    • source
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    • biological activity
    • More Info

    Description

    Leptin Antagonist Triple Mutant Rat Recombinant is a singly non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a molecular mass of ~ 16 kDa, Leptin was mutated, resulting in L39A/D40A/F41A mutant. Leptin Antagonist Triple Mutant Rat Recombinant was purified by proprietary chromatographic techniques.

    Source

    Escherichia coli.

    Formulation

    The protein was lyophilized from a concentrated (0.85mg/ml) solution with 0.003mM NaHCO3.

    Purity

    Greater than 99.0% as determined by:
    (a) Gel filtration analysis.
    (b) Analysis by SDS-PAGE.

    Biological Activity

    ProSpec’s Leptin Antagonist Triple Mutant Rat Recombinant is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. It also inhibits various leptin effects in several in vitro bioassays.

    More Info

    • Physical Appearance

      White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Leptin-Antagonist Triple Mutant Rat Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 Leptin mutant mg/ml and up to 2 mM and filter sterilization LEP-tA mutant can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.

    • Solubility

      It is recommended to reconstitute the lyophilized Leptin Antagonist Triple Mutant Rat Recombinant in sterile water or sterile 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.

    • 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 quantization was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.21 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).

    ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

    Leptin Ta Rat
  • View Data Sheet

    Name :

    AMTN Human

    Description:

    Amelotin Human Recombinant

    UNQ689, Amelotin, PRO1329.

    Product # :

    PRO-1301

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    Description

    AMTN Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 216 amino acids (17-209 a.a.) and having a molecular mass of 22.2kDa.AMTN is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    AMTN protein solution (0.5mg/ml) contains mM Tris-HCl buffer (pH 8.0), 0.2M NaCl, 20% glycerol and 2mM DTT.

    Purity

    Greater than 90.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      AMTN is a member of the amelotin family. AMTN is a lately discovered secreted enamel protein. AMTN mainly expressed during the maturation stage of enamel formation. AMTN gathers in a basal lamina-like structure at the interface between ameloblasts and enamel mineral and it co-localizes with one more lately described enamel protein, odontogenic ameloblast- related protein (ODAM(.

    • Synonyms

      UNQ689, Amelotin, PRO1329.

    • Physical Appearance

      Sterile Filtered clear solution.

    • Stability

      Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.

    • Amino Acid Sequence

      MGSSHHHHHH SSGLVPRGSH MGSLPQLKPA LGLPPTKLAP DQGTLPNQQQ SNQVFPSLSL IPLTQMLTLG PDLHLLNPAA GMTPGTQTHP LTLGGLNVQQ QLHPHVLPIF VTQLGAQGTI LSSEELPQIF TSLIIHSLFP GGILPTSQAG ANPDVQDGSL PAGGAGVNPA TQGTPAGRLP TPSGTDDDFA VTTPAGIQRS THAIEEATTE SANGIQ.

    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.

    Amtn Human
  • View Data Sheet

    Name :

    Leptin Salamander

    Description:

    Leptin Salamander Recombinant

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

    Product # :

    CYT-704

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    • More Info

    Description

    Leptin Salamander Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a molecular mass of 16kDa. The Salamander Leptin is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    The Salamander Leptin was lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3.

    Purity

    Greater than 99.0% as determined by:
    (a) Analysis by Gel-Filtration.
    (b) Analysis by SDS-PAGE.

    Biological Activity

    By inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Its activity in that test is similar to that of mouse leptin.

    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, Leptin.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized recombinant salamander leptin although stable at room temperature for several weeks, should be stored desiccated below -18C. Upon reconstitution of recombinant salamander leptin at > 0.1 mg/ml and up to 2 mg/ml and filter sterilization recombinant salamander leptin can be stored at +4C for at least two weeks.

    • Solubility

      It is recommended to reconstitute the lyophilized Salamander Leptin in sterile 0.4% NaHCO3 pH-9 not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      The sequence of the ten N-terminal amino acids was determined and was found to be Ala-Ile-Met-Val-Asp-Gln-Leu-Arg-Met-Asp.

    • Protein content

      Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.104 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.

    Leptin Salamander
  • View Data Sheet

    Name :

    Hepsin Human

    Description:

    Hepsin Human Recombinant

    HPN, TMPRSS1, Serine protease hepsin, Transmembrane protease serine 1.

    Product # :

    PRO-2846

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    • More Info

    Description

    Hepsin Human Recombinant produced in Cho cells is a covalently-linked heterodimer having a total molecular mass of 43.0kDa. Hepsin is fused to a 6 amino acid His-tag at C-terminus & purified by proprietary chromatographic techniques.

    Source

    CHO cells.

    Formulation

    The Hepsin protein was Lyophilized from a 0.2µm filtered concentrated solution in 20mM Tris and 150mM NaCl, pH 8.0.

    Purity

    Greater than 95.0% as determined by SDS-PAGE.

    Biological Activity

    The specific activity is >20,000 pmol/min/μg and was measured by its ability to cleave tert-butoxycarbonyl-Gln-Arg-Arg-7-amino-4-methylcoumarin (Boc-QRR-AMC).

    More Info

    • Synonyms

      HPN, TMPRSS1, Serine protease hepsin, Transmembrane protease serine 1.

    • Physical Appearance

      Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Hepsin Active although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Hepsin Active should be stored at 4°C between 2-7 days and for future use below -18°C.
      Please prevent freeze-thaw cycles.

    • Solubility

      It is recommended to reconstitute the lyophilized Hepsin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      Light Chain (Non-catalytic Chain)
      RSDQEPLYPV QVSSADARLM VFDKTEGTWR LLCSSRSNAR VAGLSCEEMG FLRALTHSEL DVRTAGANGT SGFFCVDEGR LPHTQRLLE VISVCDCPRGR FLAAICQDCG RRKLPVDR.

      Heavy Chain (Catalytic Chain)
      IVGGRDTSLG RWPWQVSLRY DGAHLCGGSL LSGDWVLTAA HCFPERNRVL SRWRVFAGAV AQASPHGLQL GVQAVVYHGG YLPFRDPNSE ENSNDIALVH LSSPLPLTEY IQPVCLPAAG QALVDGKICT VTGWGNTQYY GQQAGVLQEA RVPIISNDVC NGADFYGNQI KPKMFCAGYP EGGIDACQGD SGGPFVCEDS ISRTPRWRLC GIVSWGTGCA LAQKPGVYTK VSDFREWIFQ AIKTHSEASG MVTQLHHHHH H.

    • Background

      Hepsin is a type II transmembrane serine protease expressed primarily on epithelial cells, it takes part in extracellular proteolysis by activating precursor proteins such as pro-HGF and contributes to tissue remodeling, cell signaling, and normal epithelial function. Recombinant Hepsin is used to study prostate cancer, extracellular matrix remodelling, protease signalling pathways, tumor invasion, metastasis, HGF/MET signaling, and for screening inhibitors that target serine proteases

      What is the molecular weight / Mw of Hepsin Protein?
      Hepsin Protein has a total Mw of 43kDa.

      What is the source or expression system of Hepsin Protein?
      CHO Cells

      What is the Purity of Hepsin Protein?
      Hepsin Protein is >95% pure as determined by SDS-PAGE.

      What is the Biological Activity of Hepsin Protein?
      The enzymatic activity was measured by its ability to cleave tert-butoxycarbonyl-Gln-Arg-Arg-7-amino-4-methylcoumarin (Boc-QRR-AMC). The specific activity is >20,000 pmol/min/μg.

      What is the amino acid sequence of Hepsin Protein?
      Light Chain (Non-catalytic Chain)
      RSDQEPLYPV QVSSADARLM VFDKTEGTWR LLCSSRSNAR VAGLSCEEMG FLRALTHSEL DVRTAGANGT SGFFCVDEGR LPHTQRLLE VISVCDCPRGR FLAAICQDCG RRKLPVDR
      Heavy Chain (Catalytic Chain)
      IVGGRDTSLG RWPWQVSLRY DGAHLCGGSL LSGDWVLTAA HCFPERNRVL SRWRVFAGAV AQASPHGLQL GVQAVVYHGG YLPFRDPNSE ENSNDIALVH LSSPLPLTEY IQPVCLPAAG QALVDGKICT VTGWGNTQYY GQQAGVLQEA RVPIISNDVC NGADFYGNQI KPKMFCAGYP EGGIDACQGD SGGPFVCEDS ISRTPRWRLC GIVSWGTGCA LAQKPGVYTK VSDFREWIFQ AIKTHSEASG MVTQLHHHHH H

      What applications can Hepsin Protein be used in?
      Hepsin Protein can probably be used in western blot, ELISA and Lateral Flow.

      What is the endotoxin level for Hepsin Protein?
      The endotoxin level is minimal, Hepsin 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.

    Hepsin Human
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