磷酸化p21蛋白抗体

磷酸化p21蛋白抗体

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  • ¥2200
  • Biorigin
  • 2025年08月04日
  • IHC-P,
  • Human,Mouse,Rat,
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    • 详细信息
    • 技术资料
    • 适应物种

      Human,Mouse,Rat,

    • 应用范围

      IHC-P,

    • 抗体英文名

      phospho-CDKN1A/p21 (Thr145)

    • 规格

      100ul

    英文名称 phospho-CDKN1A/p21 (Thr145)
    中文名称 磷酸化p21蛋白抗体
    别    名 p21 (phospho T145); p-p21 (phospho T145); p21Cip1 (Phospho-Thr145); Activating Fragment 1; CAP20; Cation chloride cotransporter-interacting protein 1; CDK Interacting Protein 1; CDK-interacting protein 1; CDKI; CDKN 1; CDKN1; CDKN1A; CIP1; Cyclin Dependent Kinase Inhibitor 1A; Cyclin-dependent kinase inhibitor 1; Cyclin-dependent kinase inhibitor 1A (P21); Cyclin-dependent kinase inhibitor 1A (p21, Cip1); DNA Synthesis Inhibitor; MDA 6; MDA-6; MDA6; Melanoma Differentiation Associated Protein 6; Melanoma differentiation-associated protein 6; Melanoma differentiation-associated protein; p21; P21 protein; p21CIP1; p21WAF; PIC1; SDI1; SLC12A9; WAF1; Wildtype p53 Activating Fragment 1; Wildtype p53-activated fragment 1; CDN1A_HUMAN.  
    产品类型 磷酸化抗体 
    研究领域 肿瘤  免疫学  信号转导  细胞周期蛋白  
    抗体来源 Rabbit
    克隆类型 Polyclonal
    交叉反应 Human, Mouse, Rat, 
    产品应用 ELISA=1:5000-10000 IHC-P=1:100-500 IHC-F=1:100-500 Flow-Cyt=3ug/Test IF=1:100-500 (石蜡切片需做抗原修复)
    not yet tested in other applications.
    optimal dilutions/concentrations should be determined by the end user.
    分 子 量 18kDa
    细胞定位 细胞核 细胞浆 
    性    状 Liquid
    浓    度 1mg/ml
    免 疫 原 KLH conjugated Synthesised phosphopeptide derived from human CDKN1A around the phosphorylation site of Thr145:RQ(p-T)S 
    亚    型 IgG
    纯化方法 affinity purified by Protein A
    储 存 液 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
    保存条件 Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles.
    PubMed PubMed
    产品介绍 This gene encodes a potent cyclin-dependent kinase inhibitor. The encoded protein binds to and inhibits the activity of cyclin-CDK2 or -CDK4 complexes, and thus functions as a regulator of cell cycle progression at G1. The expression of this gene is tightly controlled by the tumor suppressor protein p53, through which this protein mediates the p53-dependent cell cycle G1 phase arrest in response to a variety of stress stimuli. This protein can interact with proliferating cell nuclear antigen (PCNA), a DNA polymerase accessory factor, and plays a regulatory role in S phase DNA replication and DNA damage repair. This protein was reported to be specifically cleaved by CASP3-like caspases, which thus leads to a dramatic activation of CDK2, and may be instrumental in the execution of apoptosis following caspase activation. Two alternatively spliced variants, which encode an identical protein, have been reported. Two families of cyclin dependent kinase inhibitors (CKIs) have been identified. The p21WAF1/Cip1 family inhibits all kinases involved in the G1/S transition. The p16INK4a family inhibits Cdk4 and Cdk6 specifically.

    Function:
    May be the important intermediate by which p53/TP53 mediates its role as an inhibitor of cellular proliferation in response to DNA damage. Binds to and inhibits cyclin-dependent kinase activity, preventing phosphorylation of critical cyclin-dependent kinase substrates and blocking cell cycle progression. Functions in the nuclear localization and assembly of cyclin D-CDK4 complex and promotes its kinase activity towards RB1. At higher stoichiometric ratios, inhibits the kinase activity of the cyclin D-CDK4 complex.

    Subunit:
    Interacts with HDAC1; the interaction is prevented by competitive binding of C10orf90/FATS to HDAC1 facilitating acetylation and protein stabilization of CDKN1A/p21. Interacts with MKRN1. Interacts with PSMA3. Interacts with PCNA. Component of the ternary complex, cyclin D-CDK4-CDKN1A. Interacts (via its N-terminal domain) with CDK4; the interaction promotes the assembly of the cyclin D-CDK4 complex, its nuclear translocation and promotes the cyclin D-dependent enzyme activity of CDK4. Binding to CDK2 leads to CDK2/cyclin E inactivation at the G1-S phase DNA damage checkpoint, thereby arresting cells at the G1-S transition during DNA repair. Interacts with PIM1.

    Subcellular Location:
    Cytoplasmic and Nuclear.

    Tissue Specificity:
    Expressed in all adult tissues, with 5-fold lower levels observed in the brain.

    Post-translational modifications:
    Phosphorylation of Thr-145 by Akt or of Ser-146 by PKC impairs binding to PCNA. Phosphorylation at Ser-114 by GSK3-beta enhances ubiquitination by the DCX(DTL) complex. Phosphorylation of Thr-145 by PIM2 enhances CDKN1A stability and inhibits cell proliferation. Phosphorylation of Thr-145 by PIM1 results in the relocation of CDKN1A to the cytoplasm and enhanced CDKN1A protein stability.
    Ubiquitinated by MKRN1; leading to polyubiquitination and 26S proteasome-dependent degradation. Ubiquitinated by the DCX(DTL) complex, also named CRL4(CDT2) complex, leading to its degradation during S phase or following UV irradiation. Ubiquitination by the DCX(DTL) complex is essential to control replication licensing and is PCNA-dependent: interacts with PCNA via its PIP-box, while the presence of the containing the 'K+4' motif in the PIP box, recruit the DCX(DTL) complex, leading to its degradation.
    Acetylation leads to protein stability. Acetylated in vitro on Lys-141, Lys-154, Lys-161 and Lys-163. Deacetylation by HDAC1 is prevented by competitive binding of C10orf90/FATS to HDAC1.

    Similarity:
    Belongs to the CDI family.

    SWISS:
    P38936

    Gene ID:
    1026

    Database links:

     

    Entrez Gene: 1026 Human

    Entrez Gene: 12575 Mouse

    Entrez Gene: 114851 Rat

    Omim: 116899 Human

    SwissProt: P38936 Human

    SwissProt: P39689 Mouse

    Unigene: 370771 Human

    Unigene: 195663 Mouse

    Unigene: 10089 Rat

     

     



    Important Note:
    This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.

    p21蛋白的过度表达与肿瘤的类型、恶性度、分期以及病人的预后密切相关。主要用于胃肠道癌肿、乳腺癌、肺癌等恶性肿瘤的研究。

     

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