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Search results

1000 results found for “calbindin”

Name

Description

Product #

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  • View Data Sheet

    Name :

    CRABP2 Antibody

    Description:

    Cellular Retinoic Acid binding Protein 2, Mouse Anti Human

    RBP6, CRABP-II, CRABP2, RETINOIC ACID-BINDING PROTEIN CELLULAR TYPE II, Cellular retinoic acid-binding protein 2, Cellular retinoic acid-binding protein II.

    Product # :

    ANT-356

    Price :

    Quantity :

    Shipping Method :

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    Shipped with Ice Packs

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    • formulation
    • More Info

    Formulation

    1mg/ml containing PBS, pH-7.4, & 0.1% Sodium Azide.

    More Info

    • Introduction

      CRABP2 NCBI Accession No: NP_001869 regulates the access of retinoic acid to the nuclear retinoic acid receptors. CRABP2 is involved in a regulatory feedback mechanism that controls the action of retinoic acid on cell differentiation. CRABP2 is involved in the conversion of vitamin A into its intracellular active form retinoic acid, which regulate the genes responsible for lipid metabolism and adipocyte differentiation. CRABP2 gene is located on chromosome 1q21-23 and this region has been linked with related disorders such as familial combined hyperlipidemia (FCHL) and type 2 diabetes mellitus. CRABP proteins are of low molecular weight having an important function in retinoic acid-mediated regulation of human skin growth and differentiation.

    • Synonyms

      RBP6, CRABP-II, CRABP2, RETINOIC ACID-BINDING PROTEIN CELLULAR TYPE II, Cellular retinoic acid-binding protein 2, Cellular retinoic acid-binding protein II.

    • Immunogen

      Anti-human CRABP2 mAb is derived from hybridization of mouse F0 myeloma cells with spleen cells from BALB/c mice immunized with recombinant human CRABP2 amino acids 1-138 purified from E. coli.

    • Ig Subclass

      Mouse IgG2a heavy chain and κ light chain.

    • Clone

      PAT2E11AT.

    • Applications

      CRABP2 antibody has been tested by ELISA and Western blot analysis to assure specificity and reactivity. Since application varies, however, each investigation should be titrated by the reagent to obtain optimal results. Recommended dilution range for Western blot analysis is 1:250 ~ 1000. Recommended starting dilution is 1:250.

    • Type

      Mouse Anti Human Monoclonal.

    • Storage Procedures

      For periods up to 1 month store at 4°C, for longer periods of time, store at -20°C. Prevent freeze thaw cycles.

    • Purification Method

      CRABP2 antibody was purified from mouse ascitic fluids by protein-G affinity chromatography.

    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.

    Crabp2 Antibody
  • View Data Sheet

    Name :

    Platelet Factor 4 Bovine

    Description:

    Platelet Factor-4 (CXCL4) Bovine Recombinant

    CXCL4, PF-4, PF4, Iroplact, Oncostatin-A, SCYB4, MGC138298.

    Product # :

    CHM-039

    Price :

    Quantity :

    Shipping Method :

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

    Description

    Platelet Factor-4 (CXCL4) Bovine Recombinant produced in E.Coli is a non-glycosylated polypeptide chain containing 88 amino acid and having a molecular mass of approximately 9.5kDa.PF4 is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Lyophilized from a 0.2μm filtered concentrated solution in 20 mM PB and 500mM NaCl, pH 7.0.

    Purity

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

    Biological Activity

    The biological activity determined by a chemotaxis bioassay using human neutrophils is 10-100ng/ml.

    More Info

    • Introduction

      Platelet factor-4 is a 70-amino acid protein that is released from the alpha-granules of activated platelets.PF4’s major physiologic role appears to be neutralization of 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. Furthermore, it is used as an inhibitor in the angiogenesis during tumor therapy.

    • Synonyms

      CXCL4, PF-4, PF4, Iroplact, Oncostatin-A, SCYB4, MGC138298.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized CXCL4 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Platelet Factor-4 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 Platelet Factor-4 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      ESSFPATFVP LPADSEGGED EDLQCVCLKT TSGINPRHIS SLEVIGAGTH CPSPQLLATK KTGRKICLDQ QRPLYKKILK KLLDGDES.

    • Background

      What is the molecular weight/Mw of PLATELET FACTOR 4 BOVINE Protein?
      PLATELET FACTOR 4 BOVINE Protein has a total Mw of 9.5kDa.

      What is the source or expression system of PLATELET FACTOR 4 BOVINE Protein?
      Escherichia Coli.

      What is the Purity of PLATELET FACTOR 4 BOVINE Protein?
      PLATELET FACTOR 4 BOVINE Protein is > 95% pure as determined by SDS-PAGE.

      What is the Biological Activity of PLATELET FACTOR 4 BOVINE Protein?
      The biological activity determined by a chemotaxis bioassay using human neutrophils is 10-100ng/ml.

      What is the amino acid sequence of PLATELET FACTOR 4 BOVINE Protein?
      ESSFPATFVP LPADSEGGED EDLQCVCLKT TSGINPRHIS SLEVIGAGTH CPSPQLLATK KTGRKICLDQ QRPLYKKILK KLLDGDES.

      What applications can PLATELET FACTOR 4 BOVINE Protein be used in?
      PLATELET FACTOR 4 BOVINE Protein can probably be used in western blot, ELISA and Lateral Flow.

      What is the endotoxin level for PLATELET FACTOR 4 BOVINE Protein?
      The endotoxin level is minimal, PLATELET FACTOR 4 BOVINE 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.

    Cxcl4 Bovine
  • View Data Sheet

    Name :

    CoV-2 N (1-419), Biotin

    Description:

    Coronavirus 2019 Nucleocapsid (1-419 a.a.), Biotinylated Recombinant

    Product # :

    SARS-036

    Price :

    Quantity :

    Shipping Method :

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    More Info

    • description
    • source
    • formulation
    • purity
    • More Info

    Description

    The HEK293 derived recombinant biotinylated protein contains the Coronavirus 2019 CoV-2 Nucleocapsid, Wuhan-Hu-1 strain, amino acids 1-419 fused to His-Avi tag at C-terminal.

    Source

    HEK293 Cells.

    Formulation

    CoV-2 Nucleocapsid protein is supplied in 50mM Tris, 0.15M NaCl & Arginine, pH7.5

    Purity

    Protein is >90% pure as determined SDS-PAGE.

    More Info

    • Introduction

      A human infecting coronavirus (viral pneumonia) called 2019 novel coronavirus, 2019-nCoV was found in the fish market at the city of Wuhan, Hubei province of China on December 2019.

      The 2019-nCoV shares an 87% identity to the 2 bat-derived severe acute respiratory syndrome 2018 SARS-CoV-2 located in Zhoushan of eastern China. 2019-nCoV has an analogous receptor-BD-structure to that of 2018 SARS-CoV, even though there is a.a. diversity so thus the 2019-nCoV might bind to ACE2 receptor protein (angiotensin-converting enzyme 2) in humans.

      While bats are possibly the host of 2019-nCoV, researchers suspect that animal from the ocean sold at the seafood market was an intermediate host. RSCU analysis proposes that the 2019-nCoV is a recombinant within the viral spike glycoprotein between the bat coronavirus and an unknown coronavirus.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Cov-2 Nucleocapsid protein although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution CoV2 Nucleocapsid protein 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.

    • Purification Method

      Purified by Metal-Afinity chromatographic technique.

    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.

    product_image.jpg
  • View Data Sheet

    Name :

    Procalcitonin Human, His

    Description:

    Procalcitonin Human Recombinant, His Tag

    Procalcitonin, PCT.

    Product # :

    HOR-295

    Price :

    Quantity :

    Shipping Method :

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    More Info

    • description
    • source
    • formulation
    • purity
    • More Info

    Description

    Procalcitonin Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 114 amino acids fragment (3-116) having a molecular mass of 17.13 kDa and an amino-terminal hexahistidine tag. The PCT is purified by standard chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    PCT is supplied in 20mM Tris-HCl pH 8.0 and 50% glycerol.

    Purity

    Greater than 95.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      Procalcitonin is a peptide hormone mainly produced by the C cells of the thyroid and certain endocrine cells of the lung. Under normal expression conditions, procalcitonin is immediately cleaved into three specific fragments, an N terminal residue, calcitonin and katacalcin. Levels of unprocessed procalcitonin rise significantly after bacterial infection, trauma or shock.

    • Synonyms

      Procalcitonin, PCT.

    • 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 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.

    Procalcitonin Human His
  • View Data Sheet

    Name :

    Leptin Mouse, PEG

    Description:

    Pegylated Mouse Leptin Recombinant

    OB Protein, Obesity Protein, OBS, Obesity factor.

    Product # :

    CYT-591

    Price :

    Quantity :

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

    Description

    Leptin Mono-Pegylated Mouse Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 146 amino acids and an additional Ala at N-terminus. Pegylated Mouse Leptin contains PEG 20 kDa at its N-terminus and having a molecular mass of 35.6 kDa as determined by mass spectrometry. Since its enlarged hydrodymanic volume Pegylated Leptin runs on SDS-PAGE as A 48 kDa protein and in gel-filtration on Superdex 200 as over 100 kDa protein. Pegylated Mouse Leptin half-life in circulation after SC injection was over 20 hours. Mouse Leptin was purified by proprietary chromatographic techniques according to Salomon et al (2006) Protein Expression and Purification 47, 128–136 and then pegylated.

    Source

    Escherichia Coli.

    Formulation

    The mouse Leptin was lyophilized from a concentrated (0.65mg/ml) solution containing 0.003mM NaHCO3.

    Purity

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

    Biological Activity

    Pegylated mouse Leptin is capable of stimulatng proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Pegylated mouse Leptin in vitro activity is only slightly lower than the non-pegylated antagonist but in vivo it has profound weight reducing effect (as compared to the non-pegylated leptin), resulting mainly from reduced food intake.

    More Info

    • 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 0.4% NaHCO3 adjusted to pH-8.5 not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

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

    Leptin Mouse Pegylated
  • View Data Sheet

    Name :

    HB-EGF Human

    Description:

    HB-EGF Human Recombinant

    HBEGF, DTR, DTS, HEGFL, HB-EGF, Diphtheria toxin receptor, DT-R, DTSF.

    Product # :

    CYT-119

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    Description

    HB-EGF Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 87 amino acids and having a molecular mass of 9.9kDa. The HB-EGF is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    The protein was lyophilized from a concentrated (1mg/ml) solution containing 10mM sodium phosphate pH-7.5.

    Purity

    Greater than 95.0% as determined by SDS-PAGE.

    Biological Activity

    The ED50 was determined by the ability to induce proliferation of 3T3 cells and is 0.13-0.2ng/ml. This corresponds to an expected specific activity of 7.7 x 106units/mg.

    More Info

    • Introduction

      HB-EGF is an EGF related growth factor which signals via the EGF receptor, and stimulates the proliferation of SMC (smooth muscle cells), fibroblasts, epithelial cells and keratinocytes. HB-EGF is expressed in various cell types and tissues, including vascular endothelial cells and SMC, macrophages, skeletal muscle, keratinocytes and particular tumor cells. HB-EGF’s ability to explicitly bind HPR sulfate proteoglycans is dissimilar from other EGF-like molecules, and might be related to the enhanced mitogenic activity, relative to EGF, that HB-EGF exerts on smooth muscle cells.

    • Synonyms

      HBEGF, DTR, DTS, HEGFL, HB-EGF, Diphtheria toxin receptor, DT-R, DTSF.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

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

    • Amino Acid Sequence

      MDLQEADLDL LRVTLSSKPQ ALATPNKEEH GKRKKKGKGL GKKRDPCLRK YKDFCIHGEC

      KYVKELRAPS CICHPGYHGE RCHGLSL.

    • Background

      What is the molecular weight/Mw of HB-EGF Protein?
      HB-EGF Protein has a total Mw of 9.9kDa.

      What is the source or expression system of HB-EGF Protein?
      Escherichia Coli.

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

      What is the Biological Activity of HB-EGF Protein?
      The ED50 was determined by the ability to induce proliferation of 3T3 cells and is 0.13-0.2ng/ml. This corresponds to an expected specific activity of 7.7 x 106units/mg.

      What is the amino acid sequence of HB-EGF Protein?
      MDLQEADLDL LRVTLSSKPQ ALATPNKEEH GKRKKKGKGL GKKRDPCLRK YKDFCIHGEC
      KYVKELRAPS CICHPGYHGE RCHGLSL.

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

      What is the endotoxin level for HB-EGF Protein?
      The endotoxin level is minimal, HB-EGF 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.

    Hb Egf Human
  • View Data Sheet

    Name :

    Collagen-I Goat

    Description:

    Goat Collagen-I

    Product # :

    PRO-2682

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    • description
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    Description

    Goat Collagen-I is a natural protein purified from Goat tissues. Collagen-I is purified by proprietary chromatographic techniques.

    Source

    Goat tissues.

    Formulation

    Collagen-I was lyophilized without additives.

    Purity

    Greater than 90.0% as determined by SDS-PAGE 90.0%.

    More Info

    • Introduction

      Collagen, a major component of the extracellular matrix, is a fibrous protein that provides tensile strength to tissues giving them structural integrity. Collagen and its derivative, gelatin, have been widely used in medical, pharmaceutical and consumer products for more than 100 years. The supply of these materials, created from animal remains, is both abundant and inexpensive. However, most formulations are not highly purified and have the potential to cause an inflammatory reaction in some product users. In addition, concerns have been raised over the last several years about the potential for contamination of bovine products with the agent that causes mad cow disease and its human variant, Creutzfeldt-Jakob Disease. Animal collagens are subject to extensive modifications that continue over the life of the molecule in the extracellular space. These differences influence both the extractability of collagens from tissue and the biophysical characteristics of these collagens. As a result, collagens isolated from tissues exhibit significant lot-to-lot variability and, as bulk materials, are often analytically intractable. Products that contain animal-derived collagen can induce potentially harmful inflammatory or immune responses in humans and pose risk of contamination with viruses or prions, potentially life-threatening pathogens. Recombinant collagens are essentially identical to the native collagen protein thereby reducing the risk of inflammation, immune response, and disease as compared to animal-sourced collagen.

    • Physical Appearance

      Filtered White lyophilized (freeze-dried) powder.

    • Stability

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

    • Solubility

      It is recommended to Add 0.5 M acetic acid, pH 2.5 to prepare a working stock solution not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

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

    Collagen I Goat
  • View Data Sheet

    Name :

    Leptin Rabbit

    Description:

    Leptin Rabbit Recombinant

    OB Protein, Obesity Protein, OBS, Obesity factor.

    Product # :

    CYT-507

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    Description

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

    Source

    Escherichia Coli.

    Formulation

    The protein was lyophilized from a concentrated (1mg/ml) solution with 0.02% NaHCO3.

    Purity

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

    Biological Activity

    Biological active as evidenced by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor.

    More Info

    • Introduction

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

    • Synonyms

      OB Protein, Obesity Protein, OBS, Obesity factor.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

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

    • Solubility

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

    • Amino Acid Sequence

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

    • Protein content

      Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.505 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).

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

    Leptin Rabbit
  • View Data Sheet

    Name :

    Leptin Porcine

    Description:

    Leptin Porcine Recombinant

    OB Protein, Obesity Protein, OBS, Obesity factor.

    Product # :

    CYT-503

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    Description

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

    Source

    Escherichia Coli.

    Formulation

    The protein was lyophilized from a concentrated (1mg/ml) solution with 0.02% NaHCO3.

    Purity

    Greater than 98.0% as determined by:
    (a) Gel filtration analysis.
    (b) Analysis by SDS-PAGE.

    Biological Activity

    Biological active as evidenced by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor.

    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 recombinant porcine leptin in sterile 0.4% NaHCO3 adjusted to ph 8-9, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

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

    • Protein content

      Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 0.57 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 Porcine 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 Porcine
  • View Data Sheet

    Name :

    Thymosin a1 human

    Description:

    Thymosin a1 Acetate

    Product # :

    HOR-243

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    Description

    Thymosin a1 acetate, also known as thymalfasin has immunoregulatory properties enhancing immune functions. Thymosin a1 has a molecular formula of C129H215N33O55 a.a. sequence of Ac-Ser-Asp-Ala-Ala-Val-Asp-Thr-Ser-Ser-Glu-Ile-Thr-Thr-Lys-Asp-Leu-Lys-Glu-Lys-Lys-Glu-Val-Val-Glu-Glu-Ala-Glu-Asn-OH and having a Mw of 3108.32 Dalton.

    Formulation

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

    Purity

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

    More Info

    • Introduction

      Thymalfasin is a synthetic analogue of thymosin-alpha-1, a 28-amino acid protein derived from the precursor protein prothymosin-alpha. Exhibiting a variety of immunoregulating properties, thymosin-alpha-1 induces differentiation of murine T-cell precursors and human thymocytes and the terminal differentiation of functionally immature cord blood lymphocytes and induces production of IL-2, high affinity IL-2 receptors, and B-cell growth factors by peripheral blood mononuclear cells. T-helper and cytotoxic/suppressor T-cell populations are targets of thymosin activity. Thymosin-alpha-1 has been shown to increase the efficiency of antigen presentation by macrophages and to be an endogenous modulator of alpha-thrombin activity.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Thymosin a1 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Thymalfasin 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 Thymosin a1 in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.

    • Background

      What is the molecular weight/Mw of THYMOSIN-A1 HUMAN Protein?
      THYMOSIN-A1 HUMAN Protein has a total Mw of 3.1kDa.

      What is the Purity of THYMOSIN-A1 HUMAN Protein?
      THYMOSIN-A1 HUMAN Protein is >99% pure as determined by SDS-PAGE.

      What is the Biological Activity of THYMOSIN-A1 HUMAN Protein?
      The biological functionality of THYMOSIN-A1 HUMAN Protein will be determined in the future.

      What applications can THYMOSIN-A1 HUMAN Protein be used in?
      THYMOSIN-A1 HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.

      What is the endotoxin level for THYMOSIN-A1 HUMAN Protein?
      The endotoxin level is minimal, THYMOSIN-A1 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.

    Thymosin Alpha 1
  • View Data Sheet

    Name :

    OSM Human, 209 a.a

    Description:

    Oncostatin M Human Recombinant (209 a.a.)

    OSM, MGC20461, Oncostatin M.

    Product # :

    CYT-639

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    Description

    Oncostatin-M (209 a.a.) Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 209 amino acids and having a molecular mass of 23.9kDa. The Oncostatin-M (209 a.a.) is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Oncostatin-M (209 a.a.) was lyophilized from a concentrated (1mg/ml) solution containing 1x PBS pH-7.4.

    Purity

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

    Biological Activity

    The ED50 as determined by the dose-dependant stimulation of Human TF-1 cells is < 2 ng/ml, corresponding to a Specific Activity of 500,000 IU/mg.

    More Info

    • Introduction

      Oncostatin M is a member of a cytokine family that includes leukemia-inhibitory factor, granulocyte colony-stimulating factor, and interleukin 6. This gene encodes a growth regulator which inhibits the proliferation of a number of tumor cell lines. It regulates cytokine production, including IL-6, G-CSF and GM-CSF from endothelial cells.

    • Synonyms

      OSM, MGC20461, Oncostatin M.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Oncostatin-M (209 a.a.) although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Oncostatin-M (209 a.a.) 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 Oncostatin-M (209 a.a.) in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      AAIGSCSKEYRVLLGQLQKQTDLMQDTSRLLDPYIRIQGLDVPKLREHCRERPG
      AFPSEETLRGLGRRGFLQTLNATLGCVLHRLADLEQRLPKAQDLERSGLNIEDL
      EKLQMARPNILGLRNNIYCMAQLLDNSDTAEPTKAGRGASQPPTPTPASDAFQ
      RKLEGCRFLHGYHRFMHSVGRVFKWGESPNRSRRHSPHQALRKGVRR.

    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.

    Oncostatin M Human 209 Aa
  • View Data Sheet

    Name :

    TBEV Core

    Description:

    Tick-Borne Encephalitis Virus Core Protein Recombinant

    Product # :

    TBE-285

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    • More Info

    Description

    The E.coli derived recombinant protein contains the Tick-borne Encephalitis Virus core protein epitopes.

    Source

    Escherichia Coli.

    Formulation

    20mM MES pH 6.5, 8M urea, 200mM NaCl & 0.05% Tween-20.

    Purity

    Encephalitis protein is >95% pure as determined by 10% PAGE (coomassie staining).

    More Info

    • Introduction

      TBE is caused by tick-borne encephalitis virus (TBEV), a member of the family Flaviviridae.
      A closely related virus in Far Eastern Eurasia, Russian spring-summer encephalitis virus (RSSEV).
      The family Flaviviridae includes other tick-borne viruses are closely related to TBEV and RSSEV, such as Omsk hemorrhagic fever virus & Kyasanur Forest virus.
      Louping ill virus is also a member of this family.

    • Stability

      Encephalitis protein although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.

    • Applications

      Encephalitis antigen is suitable for ELISA and Western blots, excellent antigen for detection of Tick-borne encephalitis virus with minimal specificity problems.

    • Specificity

      Immunoreactive with sera of encephalitis virus infected individuals.

    • Purification Method

      Encephalitis protein was purified by proprietary chromatographic technique.

    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.

    Tbev Core
  • View Data Sheet

    Name :

    CCL9 Mouse

    Description:

    Macrophage Inflammatory Protein-1 Gamma Mouse Recombinant (CCL9)

    CCL9/10, MRP2, CCF18.

    Product # :

    CHM-257

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    Description

    MIP-1 gamma Mouse Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 101 amino acids and having a molecular mass of 11.6 kDa. The MIP-1 gamma is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    The MIP-1 gamma was lyophilized from 1xPBS solution pH-7.4.

    Purity

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

    Biological Activity

    Defined by its ability to chemoattract human neutrophils using a concentration range of 0.1-10 ng/ml, corresponding to a Specific Activity of 10,000-100,000IU/mg.

    More Info

    • Introduction

      Mouse MIP-1 gamma is 75% identical in its amino acid compostion as compared to the rat specie. MIP-1 gamma is a CC chemokine localized in murine blood and a widespread range of murine tissues, without having an identified human homolog. MIP-1 gamma signals through the CCR1 receptor. MIP-1 gamma chemoattracts neutrophils and also inhibits colony formation of bone marrow myeloid immature progenitors. MIP-1 gamma has six cysteines including the four highly conserved cysteine residues present in CC chemokines.

    • Synonyms

      CCL9/10, MRP2, CCF18.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized MIP-1 gamma although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution CCL9/10 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 MIP-1 gamma in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      QITHATETKE VQSSLKAQQG LEIEMFHMGF QDSSDCCLSY NSRIQCSRFI GYFPTSGGCT RPGIIFISKR GFQVCANPSD RRVQRCIERL EQNSQPRTYK Q.

    • Background

      What is the molecular weight/Mw of CCL9 MOUSE Protein?
      CCL9 MOUSE Protein has a total Mw of 11.6kDa.

      What is the source or expression system of CCL9 MOUSE Protein?
      Escherichia Coli.

      What is the Purity of CCL9 MOUSE Protein?
      CCL9 MOUSE Protein is > 97% pure as determined by SDS-PAGE.

      What is the Biological Activity of CCL9 MOUSE Protein?
      Defined by its ability to chemoattract human neutrophils using a concentration range of 0.1-10 ng/ml, corresponding to a Specific Activity of 10,000-100,000IU/mg.

      What is the amino acid sequence of CCL9 MOUSE Protein?
      QITHATETKE VQSSLKAQQG LEIEMFHMGF QDSSDCCLSY NSRIQCSRFI GYFPTSGGCT RPGIIFISKR GFQVCANPSD RRVQRCIERL EQNSQPRTYK Q.

      What applications can CCL9 MOUSE Protein be used in?
      CCL9 MOUSE Protein can probably be used in western blot, ELISA and Lateral Flow.

      What is the endotoxin level for CCL9 MOUSE Protein?
      The endotoxin level is minimal, CCL9 MOUSE 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.

    Mip 1 Gamma Mouse
  • View Data Sheet

    Name :

    LAIR2 Human

    Description:

    Leukocyte-Associated Ig-Like Receptor 2 Human Recombinant

    Leukocyte-associated immunoglobulin-like receptor 2, LAIR-2, CD306, LAIR2.

    Product # :

    PRO-1081

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    • description
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    • More Info

    Description

    LAIR2 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 139 amino acids (22-135 a.a) and having a molecular mass of 15.2kDa.LAIR2 is fused to a 25 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    LAIR2 protein solution (1mg/ml) containing 20mM Tris-HCl buffer (pH8.0), 20% glycerol, 0.1M NaCl and 1mM DTT.

    Purity

    Greater than 90.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      Leukocyte-associated immunoglobulin-like receptor 2 (LAIR2) is a secreted, 131 amino acids protein which contains one IglikeC2 type domain, rendering it a member of the Ig superfamily. Even though one is secreted and one is membrane bound, the 2 LAIR proteins are assumed to have evolved from a common gene ancestor and seem to share similar adhesion profiles, suggesting that LAIR2 may compete with LAIR1 for ligand binding. LAIR2 was discovered by its similarity to LAIR1, which is an inhibitory receptor present on mononuclear leukocytes. The LAIR2 gene maps to a region of 19q13.4, dubbed the leukocyte receptor cluster, which contains 29 genes in the immunoglobulin superfamily, including LAIR1. The function of the LAIR2 protein is unknown, though it is assumed to be secreted and may help modulate mucosal tolerance.

    • Synonyms

      Leukocyte-associated immunoglobulin-like receptor 2, LAIR-2, CD306, LAIR2.

    • Physical Appearance

      Sterile Filtered colorless solution.

    • Stability

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

    • Amino Acid Sequence

      MGSSHHHHHH SSGLVPRGSH MGSHMQEGAL PRPSISAEPG TVISPGSHVT FMCRGPVGVQ TFRLEREDRA KYKDSYNVFR LGPSESEARF HIDSVSEGNA GLYRCLYYKP PGWSEHSDFL ELLVKGTVPG TEASGFDAP.

    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.

    Lair2 Human
  • View Data Sheet

    Name :

    Insulin Human

    Description:

    Insulin Human Recombinant

    Product # :

    CYT-270

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    • description
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    • More Info

    Description

    Insulin Human Recombinant produced in E.Coli is a two chain, non-glycosylated polypeptide chain containing 51 amino acids and having a molecular mass of 5807 Dalton. Insulin is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    The protein was lyophilized from a concentrated (1mg/ml) solution with no additives.

    Purity

    Greater than 98.0% as determined by RP-HPLC analysis.

    Biological Activity

    The Biological Activity was determined to be 28 units/mg.

    More Info

    • Introduction

      Insulin decreases blood glucose concentration. It increases cell permeability to monosaccharides, amino acids and fatty acids. It accelerates glycolysis, the pentose phosphate cycle, and glycogen synthesis in liver.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Insulin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Insulin 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 Insulin in sterile 0.005N HCl not more than 1 mg/ml.

    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.

    Insulin Human
  • View Data Sheet

    Name :

    CKMB Human Active

    Description:

    Creatine Kinase MB Active Human Recombinant

    CKMB, CK-MB 

     

    Product # :

    CKI-200

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    Description

    CKMB Human Recombinant produced in E. coli is a noncovalently-linked heterodimer consists of CK-M and CK-B each containing 381 amino acids and having a total molecular mass of 85.7kDa (43.10 kDa and 42.64 kDa respectively). CKMB is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    The 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 Analysis by SDS-PAGE.

    Biological Activity

    The specific activity ranges from 500-600 units/mg and was measured kinetically by the CK-NAC assay at 37°C.

    More Info

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

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

    • Amino Acid Sequence

      CKM
      MPFGNTHNKF KLNYKPEEEY PDLSKHNNHM AKVLTLELYK KLRDKETPSG FTVDDVIQTG VDNPGHPFIM TVGCVAGDEE SYEVFKELFD PIISDRHGGY KPTDKHKTDL NHENLKGGDD LDPNYVLSSR VRTGRSIKGY TLPPHCSRGE RRAVEKLSVE ALNSLTGEFK GKYYPLKSMT EKEQQQLIDD HFLFDKPVSP LLLASGMARD WPDARGIWHN DNKSFLVWVN EEDHLRVISM EKGGNMKEVF RRFCVGLQKI EEIFKKAGHP FMWNQHLGYV LTCPSNLGTG LRGGVHVKLA HLSKHPKFEE ILTRLRLQKR GTGGVDTAAV GSVFDVSNAD RLGSSEVEQV QLVVDGVKLM VEMEKKLEKG QSIDDMIPAQ K
      CKB
      MPFSNSHNAL KLRFPAEDEF PDLSAHNNHM AKVLTPELYA ELRAKSTPSG FTLDDVIQTG VDNPGHPYIM TVGCVAGDEE SYEVFKDLFD PIIEDRHGGY KPSDEHKTDL NPDNLQGGDD LDPNYVLSSR VRTGRSIRGF CLPPHCSRGE RRAIEKLAVE ALSSLDGDLA GRYYALKSMT EAEQQQLIDD HFLFDKPVSP LLLASGMARD WPDARGIWHN DNKTFLVWVN EEDHLRVISM QKGGNMKEVF TRFCTGLTQI ETLFKSKDYE FMWNPHLGYI LTCPSNLGTG LRAGVHIKLP NLGKHEKFSE VLKRLRLQKR GTGGVDTAAV GGVFDVSNAD RLGFSEVELV QMVVDGVKLL IEMEQRLEQG QAIDDLMPAQ K.

    • Background

      CKMB is used in cardiovascular research as a biomarker for myocardial injury and to investigate the molecular mechanisms of cardiac muscle damage and repair.
      CKMB is also used in Immunoassay development, Aptamer screening, Biosensor validation and Point-of-care diagnostic assay development

      What is the molecular weight / Mw of CKMB Protein?
      CKMB Protein is a non covalently heterodimer having a total Mw of 85.7ka

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

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

      What is the Biological Activity of CKMB Protein?
      The activity was determined kinetically by the CK-NAC assay at 37°C which ranges between 500-600 U/mg.


      What is the amino acid sequence of CKMB Protein?
      CKM
      MPFGNTHNKF KLNYKPEEEY PDLSKHNNHM AKVLTLELYK KLRDKETPSG FTVDDVIQTG VDNPGHPFIM TVGCVAGDEE SYEVFKELFD PIISDRHGGY KPTDKHKTDL NHENLKGGDD LDPNYVLSSR VRTGRSIKGY TLPPHCSRGE RRAVEKLSVE ALNSLTGEFK GKYYPLKSMT EKEQQQLIDD HFLFDKPVSP LLLASGMARD WPDARGIWHN DNKSFLVWVN EEDHLRVISM EKGGNMKEVF RRFCVGLQKI EEIFKKAGHP FMWNQHLGYV LTCPSNLGTG LRGGVHVKLA HLSKHPKFEE ILTRLRLQKR GTGGVDTAAV GSVFDVSNAD RLGSSEVEQV QLVVDGVKLM VEMEKKLEKG QSIDDMIPAQ K
      CKB
      MPFSNSHNAL KLRFPAEDEF PDLSAHNNHM AKVLTPELYA ELRAKSTPSG FTLDDVIQTG VDNPGHPYIM TVGCVAGDEE SYEVFKDLFD PIIEDRHGGY KPSDEHKTDL NPDNLQGGDD LDPNYVLSSR VRTGRSIRGF CLPPHCSRGE RRAIEKLAVE ALSSLDGDLA GRYYALKSMT EAEQQQLIDD HFLFDKPVSP LLLASGMARD WPDARGIWHN DNKTFLVWVN EEDHLRVISM QKGGNMKEVF TRFCTGLTQI ETLFKSKDYE FMWNPHLGYI LTCPSNLGTG LRAGVHIKLP NLGKHEKFSE VLKRLRLQKR GTGGVDTAAV GGVFDVSNAD RLGFSEVELV QMVVDGVKLL IEMEQRLEQG QAIDDLMPAQ K

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


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

    CKMB Human Active
  • View Data Sheet

    Name :

    PCT Paired Antibody

    Description:

    Anti Human Procalcitonin Paired Antibody Mouse

    Product # :

    ANT-784

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    Description

    Procalcitonin Paired monoclonal antibodies are used to develop rapid test for PCT rapid test. Please note that when ordering for example: 100µg paired antibody, you receive 50µg from each antibody (100µg in total).

    Formulation

    *PCT conjugation antibody in PBS, NaCl and 0.095% NaN3.

    * PCT coating antibody in PBS, NaCl and 0.095% NaN3.

    Purity

    Greater than 95%.

    More Info

    • Physical Appearance

      2 vials of sterile Filtered clear colorless solution.

    • Stability

      For periods up to 1 month PCT Paired Antibody should be stored at 4°C, for longer periods of time, store at -20°C. Prevent freeze thaw cycles.

    • Applications

      Lateral flow immunoassay.

    • Background

      Procalcitonin is a hormone mostly produced by the C cells of the thyroid and specific endocrine cells of the lung. Under normal expression conditions, procalcitonin is immediately cleaved into 3 specific fragments, an N terminal residue, katacalcin and calcitonin. Levels of unprocessed procalcitonin rise drastically after bacterial infection or shock.

    • Type

      Mouse antibody Monoclonal.

    • Purification Method

      Purified monoclonal IgG1 by protein A chromatography.

    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.

    Procalcitonin Antibody
  • View Data Sheet

    Name :

    Leptin Mouse (D23L)

    Description:

    Leptin D23L Mutant Mouse Recombinant

    Product # :

    CYT-1249

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    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 :

    ACE2 (18-740) Human, Biotin

    Description:

    Angiotensin Converting Enzyme 2 (18-740 a.a.), Biotinylated Human Recombinant

    Product # :

    ENZ-1127

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    Description

    The HEK293 derived ACE2 Human recombinant biotinylated protein contains the amino acids Gln 18-Ser 740 fused to His-AVI tag at C-terminal having a predicted Mw of 87.2 kDa ( migrates 95-125 kDa under reducing conditions on sds-page due to glycosilation). ACE2 Protein binds to SARS Coronavirus-2 [ CoV-2019 ] Spike receptor binding domain.

    Source

    HEK293 Cells

    Formulation

    ACE2 Human protein solution is supplied in 50mM Tris, pH7.5, 150mM NaCl and 20% glycerol.

    Purity

    ACE-2 Protein is >90% pure as determined SDS-PAGE.

    Biological Activity

    ACE2 activity was measured by its binding ability in a functional ELISA.

    The immobilized Recombinant Human ACE2 protein binds to SARS CoV2 Spike protein Receptor Binding Domain at 2ug per ml.

    More Info

    • Introduction

      ACE-2 (Angiotensin converting enzyme 2) an enzyme bound to cell membranes in various organs such as intestines arteries , lungs, heart & kidney. ACE2 an entry receptor of SARS coronaviruses as well as SARS-CoV-2,.The coronavirus spike (S) glycoprotein is a class I viral fusion antigen located on the external envelope of the virion that takes part in a critical part in viral infection by identifying host cell receptors and facilitating fusion of the viral and cellular membranes. 2 main domains in coronavirus S1 have been recognized, the N-terminal domain and C-terminal domain. One or the other and/or both S1 domains function as a receptor-binding domain. SARS-CoV + MERS-CoV equally use C-domain to attach their receptors.ACE2 is a type I transmembrane antigen with an extracellular N-terminal domain having the catalytic site and an intracellular C-terminal tail. ACE2 obtains a signal peptide, a transmembrane domain, and a single metalloproteinase active site containing an HEXXH zinc-binding domain. ACE-2 plays a role as a mono-carboxypeptidase which degrades Ang I to produce the nonapeptide Ang 1–9 and Ang II to create the heptapeptide Ang 1–7.

    • Physical Appearance

      Sterile Filtered clear solution.

    • Stability

      ACE-2 Human Recombinant Protein is shipped on ice packs. Upon arrival, Store at -20°C. The addition of 0.1% albmin is highly recommended for long term storage use.

    • Purification Method

      Purified by Protein-G chromatographic technique.

    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.

    Ace 2 Protein
  • View Data Sheet

    Name :

    GDF3 Human

    Description:

    Growth Differentiation Factor-3 Human Recombinant

    Growth Differentiation Factor 3, Growth/Differentiation Factor 3 , MCOPCB6, MCOP7, GDF-3, KFS3.

    Product # :

    CYT-694

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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

    • 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.

    • Synonyms

      Growth Differentiation Factor 3, Growth/Differentiation Factor 3 , MCOPCB6, MCOP7, GDF-3, KFS3.

    • Physical Appearance

      Filtered White lyophilized (freeze-dried) powder.

    • 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.

    • 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.

    • Amino Acid Sequence

      MKHHHHHHAS AAIPVPKLSC KNLCHRHQLF INFRDLGWHK WIIAPKGFMA NYCHGECPFS LTISLNSSNY AFMQALMHAV DPEIPQAVCI PTKLSPISML YQDNNDNVIL RHYEDMVVDECGCG.

    • 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.

    Gdf3 Human
  • View Data Sheet

    Name :

    Placental Lactogen Caprine

    Description:

    Placental Lactogen Caprine Recombinant

    Chorionic Somatomammotropin Hormone 1, CSH1, CS-1, hCS, PL.

    Product # :

    CYT-510

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    Description

    Placental Lactogen Caprine Recombinant, is a single polypeptide chain containing 199 amino acids and an additional Ala at the N-terminus having a molecular mass of 23 kDa. Placental Lactogen Recombinant Goat is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    The protein was lyophilized from a concentrated (1mg/ml) solution with 0.02-0.03% NaHCO3.

    Purity

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

    Biological Activity

    Placental Lactogen Caprine is biologically active as evidenced by inducing proliferation of Nb2 cells.

    More Info

    • Introduction

      Placental Lactogen is a polypeptide hormone that is produced by the Syncytiotrophoblasts of the Placenta, also known as chorionic somatomammotropin. It has both Growth Hormone and Prolactin activities on growth, lactation, and luteal steroid production. In women, placental lactogen secretion begins soon after implantation and increases to 1 g or more a day in late pregnancy. Placental lactogen is also an insulin antagonist.
      Placental Lactogen Goat is also capable of activating human and other heterologous GH receptors but not ruminat GH receptors.

    • Synonyms

      Chorionic Somatomammotropin Hormone 1, CSH1, CS-1, hCS, PL.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized caprine recombinant placental lactogen although stable at room temperature for several weeks, should be stored desiccated below -18C. Upon reconstitution of caprine recombinant placental lactogen at > 0.1 mg/ml and up to 4 mg/ml and filter sterilization caprine recombinant placental lactogen can be stored at 4C for several weeks.

    • Solubility

      It is recommended to reconstitute the lyophilized caprine recombinant placental lactogen in sterile water or 0.4% NaHCO3 adjusted tp pH 8-9, not less than 100µg/ml, which can then be further diluted to other aqueous solutions, preferably in presence of carrier protein.

    • Amino Acid Sequence

      The sequence of the first four N-terminal amino acids was determined and was found to be Ala-Glu-Asn-Tyr.

    • Protein content

      UV spectroscopy at 280 nm using the absorbency value of 0.85 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.

    Placental Lactogen Caprine
  • View Data Sheet

    Name :

    MT I

    Description:

    Melanotan-I

    Melanotan-I, MT-I, Melanotan-1.

    Product # :

    HOR-306

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    Description

    Melanotan-I has the amino acid sequence of Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val and a molecular weight of 1647.4 Dalton.

    Formulation

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

    Purity

    Greater than 98.0% as determined by RP-HPLC.

    More Info

    • Synonyms

      Melanotan-I, MT-I, Melanotan-1.

    • Physical Appearance

      Sterile Filtered off-White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Melanotan-I although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution MT-I 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 Melanotan-I in sterile 1% acetic acid not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.

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

    Melanotan I
  • View Data Sheet

    Name :

    Myostatin Human

    Description:

    Myostatin Human Recombinant

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

    Product # :

    CYT-418

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    Description

    Myostatin Human Recombinant produced in E.Coli is a homodimer, non-glycosylated polypeptide chain containing 2 x 109 amino acids and having a total molecular mass of 24814 Dalton. The GDF-8 is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Lyophilized from a concentrated (1mg/ml) solution containing no additives.

    Purity

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

    Biological Activity

    The ED50 as determined by the inhibition of the proliferation of MPC-11 cells is < 20ng/ml, corresponding to a Specific Activity of 50,000units/mg.

    More Info

    • Introduction

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

    • Synonyms

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

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

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

    • Solubility

      It is recommended to reconstitute the lyophilized Myostatin in sterile 20mM HCl at 0.1 mg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      The sequence of the first five N-terminal amino acids was determined and was found to be Asp-Phe-Gly-Leu-Asp.

    • Protein content

      Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 1.55 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a standard solution of Myostatin as a Reference Standard.

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

    Myostatin Human
  • View Data Sheet

    Name :

    BSG Human

    Description:

    Basigin Human Recombinant

    Basigin isoform 2, 5F7, CD147, EMMPRIN, OK, TCSF, Leukocyte activation antigen M6, OK blood group antigen.

    Product # :

    PRO-2516

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    • More Info

    Description

    BSG produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 428 amino acids (22-207a.a.) and having a molecular mass of 47.5kDa. (Molecular size on SDS-PAGE will appear at approximately 40-57kDa).BSG is expressed with a 242 amino acid hIgG-His tag at C-Terminus and purified by proprietary chromatographic techniques.

    Source

    Sf9, Baculovirus cells.

    Formulation

    BSG protein solution (0.5mg/ml) contains phosphate buffered saline (pH7.4) and 10% glycerol.

    Purity

    Greater than 90.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      Basigin Isoform 2 or BSG is a part of the immunoglobulin superfamily, it is a type 1 transmembrane protein which has a variety of Nand O- glycosylation. BSG has several ligands, such as integrins, cyclophilin proteins Cyp-A & CyP-B. The protein has a crucial role in intercellular recognition, it takes part in many immunologic processes, differentiation and cell development. Also, it regulates numerus cell processes such as production and release of expression of the mono-carboxylate transporter, spermatogenesis, etc. Basigin Isoform 2 promotes invasion, metastasis, growth and survival of malignant cells by producing and releasing matrix metalloproteinases nearby mesenchymal cells and tumor cells.

    • Synonyms

      Basigin isoform 2, 5F7, CD147, EMMPRIN, OK, TCSF, Leukocyte activation antigen M6, OK blood group antigen.

    • 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

      ADPAAGTVFT TVEDLGSKIL LTCSLNDSAT EVTGHRWLKG GVVLKEDALP GQKTEFKVDS DDQWGEYSCV FLPEPMGTAN IQLHGPPRVK AVKSSEHINE GETAMLVCKS ESVPPVTDWA WYKITDSEDK ALMNGSESRF FVSSSQGRSE LHIENLNMEA DPGQYRCNGT SSKGSDQAII
      TLRVRSHLAL EPKSCDKTHT CPPCPAPELL GGPSVFLFPP KPKDTLMISR TPEVTCVVVD VSHEDPEVKF NWYVDGVEVH NAKTKPREEQ YNSTYRVVSV LTVLHQDWLN GKEYKCKVSN KALPAPIEKT ISKAKGQPRE PQVYTLPPSR DELTKNQVSL TCLVKGFYPS DIAVEWESNG
      QPENNYKTTP PVLDSDGSFF LYSKLTVDKS RWQQGNVFSC SVMHEALHNH YTQKSLSLSP GKHHHHHH.

    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.

    Basigin Human
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