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    [KO驗證抗體] Rabbit Anti-p21  antibody (bs-55160R)
    訂購QQ:  400-901-9800
    說明書: 50ul  100ul  200ul

    產品編號 bs-55160R
    英文名稱 [KO驗證抗體] p21
    中文名稱 p21蛋白抗體
    別    名 p21; P21 protein; 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; p21CIP1; p21WAF; PIC1; SDI1; SLC12A9; WAF1; Wildtype p53 Activating Fragment 1; Wildtype p53-activated fragment 1; CDN1A_HUMAN.  
    Specific References  (3)     |     bs-55160R has been referenced in 3 publications.
    [IF=2.942] Zhang Wei. et al. C1QTNF6 regulates cell proliferation and apoptosis of NSCLC in vitro and in vivo. Bioscience Rep. 2021 Jan;41(1):BSR20201541  WB ;  Human.  
    [IF=4.432] Luya Pu. et al. Icariin arrests cell cycle progression and induces cell apoptosis through the mitochondrial pathway in human fibroblast-like synoviocytes. Eur J Pharmacol. 2021 Dec;912:174585  WB ;  Human.  
    [IF=2.795] Jiejie Yang. et al. TMEM166 inhibits cell proliferation, migration and invasion in hepatocellular carcinoma via upregulating TP53. Mol Cell Biochem. 2021 Feb;476(2):1151-1163  WB ;  Human.  
    研究領域 腫瘤  細胞生物  信號轉導  細胞凋亡  細胞周期蛋白  
    抗體來源 Rabbit
    克隆類型 Polyclonal
    交叉反應 Human,  (predicted: Mouse, Rat, )
    產品應用 WB=1:500-2000 IHC-P=1:20-100 IHC-F=1:20-100 (石蠟切片需做抗原修復)
    not yet tested in other applications.
    optimal dilutions/concentrations should be determined by the end user.
    理論分子量 18kDa
    細胞定位 細胞核 細胞漿 
    性    狀 Liquid
    濃    度 1mg/ml
    免 疫 原 Recombinant human p21: 1-164/164 
    亞    型 IgG
    純化方法 affinity purified by Protein A
    緩 沖 液 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
    保存條件 Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.
    注意事項 This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
    PubMed PubMed
    產品介紹 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.

    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.

    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.

    Belongs to the CDI family.


    Gene ID:

    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

    Lane 1: Hela (Human) Cell Lysate at 25 ug
    Lane 2: NDRG1 knockout (KO) Hela (Human) Cell Lysate at 25 ug
    Primary: Anti-CDKN1A/p21CIP1 (bs-55160R) at 1/1000 dilution
    Secondary: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution
    Predicted band size: 21 kD
    Observed band size: 21 kD
    Lane 1: MCF-7 (Human) Cell Lysate at 30 ug
    Lane 2: Hela (Human) Cell Lysate at 30 ug
    Lane 3: Huvec (Human) Cell Lysate at 30 ug
    Lane 4: U87MG (Human) Cell Lysate at 30 ug
    Lane 5: 293T (Human) Cell Lysate at 30 ug
    Lane 6: A673 (Human) Cell Lysate at 30 ug
    Anti- p21 (bs-55160R) at 1/1000 dilution
    Anti-beta-Actin (bs-0061R) at 1/2000 dilution
    Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution
    Predicted band size: 21 kD
    Observed band size: 21 kD
    Paraformaldehyde-fixed, paraffin embedded (human breast cancer); Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 20 minutes; Blocking buffer (normal goat serum) at 37°C for 30min; Antibody incubation with (p21) Polyclonal Antibody, Unconjugated (bs-55160R) at 1:100 overnight at 4°C, followed by operating according to SP Kit(Rabbit) (sp-0023) instructionsand DAB staining.
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