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Phospho-NPM (Thr199) Antibody

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  • 询价
  • Cell Signaling Technology已认证
  • USA
  • 2025年12月07日
  • W, IP, IHC-P, IF-IC
  • Rabbit
  • H,M,R
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    • 详细信息
    • 文献和实验
    • 技术资料
    • 抗体英文名

      Phospho-NPM (Thr199) Antibody

    • 抗原

      synthetic phosphopeptide corresponding to residues around Thr199 of human NPM

    • 应用范围

      W, IP, IHC-P, IF-IC

    • 宿主

      Rabbit

    • 级别

      详见MSDS文件

    • 适应物种

      H,M,R

    • 库存

      大量

    • 供应商

      CST

    • 保质期

      详见说明书

    • 是否单克隆

      2

    • 保存条件

      -20°c

    • 规格

      100 ul (10 western blots)/carrier free & custom formulation / quantity

    规格:产品价格:¥请询价
    规格:100 ul (10 western blots)产品价格:¥请询价
    规格:carrier free & custom formulation / quantity产品价格:¥请询价

    pathway more info application references datasheet PDF MSDS PDF protocols

    Applications Key:  W=Western Blotting  IP=Immunoprecipitation  IHC-P=Immunohistochemistry (Paraffin)  IF-IC=Immunofluorescence (Immunocytochemistry)
    Reactivity Key:  H=Human  M=Mouse  R=Rat
    Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

    Applications Reactivity Sensitivity MW (kDa) Source
    W IP IHC-P IF-IC H M R Endogenous 38 Rabbit
    Protocols
    Specificity / Sensitivity

    Phospho-NPM (Thr199) Antibody detects endogenous levels of NPM only when phosphorylated at threonine 199.

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues around Thr199 of human NPM. Antibodies are purified by protein A and peptide affinity chromatography.

    Western Blotting

    Western Blotting

    Western blot analysis of extracts from HeLa cells synchronized at various stages of the cell cycle, using Phospho-NPM (Thr199) Antibody (upper) or NPM Antibody #3542 (lower).

    IHC-P (paraffin)

    IHC-P (paraffin)

    Immunohistochemical analysis of paraffin-embedded human breast carcinoma, showing nuclear localization, using Phospho-NPM (Thr199) Antibody.

    IF-IC

    IF-IC

    Confocal immunofluorescent analyis of HT-29 cells, untreated (left) or λ-phosphatase-treated (right), using Phospho-NPM (Thr199) Antibody (green). Actin filaments were labeled with DY-554 phalloidin (red). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).


    Background

    Nucleophosmin (NPM; also known as B23, numatrin or NO38) is an abundant phosphoprotein primarily found in nucleoli. It has been implicated in several distinct cellular functions, including assembly and transport of ribosomes, cytoplasmic/nuclear trafficking, regulation of DNA polymerase α activity, centrosome duplication and molecular chaperoning activities (1,2). The NPM gene is also known for its fusion with the anaplastic lymphoma kinase (ALK) receptor tyrosine kinase. The NPM portion contributes to transformation by providing a dimerization domain, which results in activation of the fused kinase (3,4).

    NPM associates with unduplicated centrosomes and is a direct substrate of Cdk2-cyclin E in centrosome duplication (4). Upon phosphorylation at Thr199 by Cdk2-cyclin E, NPM dissociates from centrosomes, and this dissociation is a prerequisite step for centrosome to initiate duplication (5).

    1. Okuda, M. et al. (2000) Cell 103, 127-140.
    2. Takemura, M. et al. (1999) J. Biochem. (Tokyo) 125, 904-909.
    3. Morris, S.W. et al. (1994) Science 263, 1281-1284.
    4. Bischof, D. et al. (1997) Mol. Cell. Biol. 17, 2312-2325.
    5. Tokuyama, Y. et al. (2001) J. Biol. Chem. 276, 21529-21537.
    Application References

    Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know !

    Companion Products

    For Research Use Only. Not For Use In Diagnostic Procedures.

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