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Recombinant Human Cytokeratin

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  • ￥1080 - 87906
  • Prospecbio
  • 以色列
  • pro-350
  • 2025年07月14日
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    上海经科化学科技有限公司
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    • 详细信息
    • 文献和实验
    • 技术资料
    • 保存条件：

      for future use below -18°C

    • 保质期：

      See instructions

    • 英文名：

      KRT19

    • 库存：

      常规产品有备货

    • 供应商：

      上海经科化学科技有限公司

    • CAS号：

      无

    • 规格：

      5ug/20ug/1mg

    规格：5ug产品价格：￥1080.0
    规格：20ug产品价格：￥2415.0
    规格：1mg产品价格：￥87906.0

    产品细节图片1

    CATALOGUE NUMBER

    PRO-350

    SYNONYMS

    Keratin type I cytoskeletal 19, Cytokeratin-19, CK-19, Keratin-19, K19, KRT19, CK19, K1CS, MGC15366.

    INTRODUCTION

    CTK-19 is a member of the keratin family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. The type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. Unlike its related family members, this smallest known acidic cytokeratin is not paired with a basic cytokeratin in epithelial cells. It is specifically expressed in the periderm, the transiently superficial layer that envelopes the developing epidermis. The type I cytokeratins are clustered in a region of chromosome 17q12-q21.

    DESCRIPTION

    Cytokeratin 19 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain having a molecular mass of 44,098 Dalton.
    The KRT19 is purified by proprietary chromatographic techniques.

    SOURCE

    Escherichia Coli.

    PHYSICAL APPEARANCE

    Sterile Filtered White lyophilized (freeze-dried) powder.

    FORMULATION

    The protein (1mg/ml) was lyophilized after from a sterile solution containing 30mM Tris-HCl pH-8, 9.5M urea, 2mM DTT, 2mM EDTA and 10mM methylammonium chloride.

    SOLUBILITY

    It is recommended to reconstitute the lyophilized KRT19 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    STABILITY

    Lyophilized KRT19 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution KRT19 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.

    PURITY

    Greater than 95.0% as determined by SDS-PAGE.

    RECONSTITUTION TO FILAMENTS

    Performed by mixing equimolar amounts of cytokeratins of type I and type II at concentrations of approx. 0.5 mg/ml, both dissolved in 9.5 M urea buffer (see above). Protofilaments and filament complexes are obtained by dialyzing the resulting polypeptide solution stepwise to a concentration of 4 M urea and then to low salt condition (50 mM NaCl, 2 mM dithiothreitol, 10 mM Tris-HCl, pH 7.4). For immunization purposes, the solution can be further dialyzed against PBS (phosphate buffered saline, e.g. Dulbecco's PBS).

    SAFETY DATA SHEET

    SDS

    USAGE

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

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    图标文献和实验
    该产品被引用文献

    Cytokeratin 19 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain having a molecular mass of 44,098 Dalton.
    The KRT19 is purified by proprietary chromatographic techniques.

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    文献支持
    Recombinant Human Cytokeratin 19
    ￥1080 - 87906