Mouse p21WAF1 Monoclonal Antibody | anti-CDKN1A antibody

p21WAF1 (Tumor Suppressor Protein) Mouse Monoclonal Antibody

Cat. Num. AAA438987

• Gene Names: CDKN1A; P21; CIP1; SDI1; WAF1; CAP20; CDKN1; MDA-6; p21CIP1
• Reactivity: Human.; Does not react with Mouse and Rat
• Applications: Flow Cytometry, Functional Assay, Immunofluorescence, Western Blot, Immunohistochemistry
• Synonyms: p21WAF1; Monoclonal Antibody; p21WAF1 (Tumor Suppressor Protein) Mouse Monoclonal Antibody; Activating Fragment 1; CAP20; CDK-interacting protein 1; CDKI; CDKN1; CDKN1A; CIP1; Cyclin-dependent kinase inhibitor 1A (p21; Cip1); DNA Synthesis Inhibitor; MDA6; Melanoma Differentiation Associated Protein 6; p21Cip1/Waf1; PIC1; SDI1; SLC12A9; Wild type p53 activated fragment 1 (WAF1); anti-CDKN1A antibody

• Host: Mouse
• Reactivity: Human.; Does not react with Mouse and Rat
• Clonality: Monoclonal
• Isotype: IgG2a, kappa
• Clone Number: SPM306
• Specificity: This MAb recognizes a 21kDa protein, identified as the p21WAF1 tumor suppressor protein. This MAb is highly specific to p21 and shows no cross-reaction with other closely related mitotic inhibitors. p21WAF1 is a specific inhibitor of cdks and a tumor suppressor involved in the pathogenesis of a variety of malignancies. The expression of this gene acts as an inhibitor of the cell cycle during G1 phase and is tightly controlled by the tumor suppressor protein p53. Its expression is induced by the wild type, but not mutant, p53 suppressor protein. Normal cells generally display a rather intense nuclear p21 expression. Loss of p21 expression has been reported in many carcinomas (gastric carcinoma, non-small cell lung carcinoma, thyroid carcinoma).
• Form/Format: 200ug/ml of Ab purified from Bioreactor Concentrate by Protein A/G. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0mg/ml.
• Sequence Length: 164

• Applicable Applications for anti-CDKN1A antibody: Flow Cytometry (FC/FACS), Immunofluorescence (IF), Western Blot (WB), Immunohistochemistry (IHC) Formalin
• Application Notes: Flow Cytometry (0.5-1ug/million cells in 0.1ml); Immunofluorescence (1-2ug/ml); Western Blot (1-2ug/ml); Immunohistochemistry (Formalin-fixed) (2-4ug/ml for 30 minutes at RT) (Staining of formalin-fixed tissues requires boiling tissue sections in 10mM citrate buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes)
• Cellular Localization: Nuclear
• Immunogen: Human recombinant p21 protein
• Hu-Chromosome Location: 6p21.31
• Positive Control: HeLa Cells. Skin, colon, or breast carcinoma.
• Preparation and Storage: Antibody with azide - store at 2 to 8 degree C. Antibody without azide - store at -20 to -80 degree C. Antibody is stable for 24 months. Non-hazardous. No MSDS required.

Immunohistochemistry (IHC)

(Formalin-fixed, paraffin-embedded human Colon Carcinoma stained with p21 Monoclonal Antibody (SPM306).)

References

Harper, J.W., et al. 1993. The p21 Cdk-interacting protein Cip1 is a potent inhibitor of G1 cyclin-dependent kinases. Cell 75: 805-816.

NCBI and Uniprot Product Information

• NCBI GI #: 11386203
• NCBI GeneID: 1026
• NCBI Accession #: NP_000380.1
• NCBI GenBank Nucleotide #: NM_000389.4
• UniProt Accession #: P38936; Q14010; Q6FI05; Q9BUT4
• Molecular Weight: 21kDa
• NCBI Official Full Name: cyclin-dependent kinase inhibitor 1 isoform 1
• NCBI Official Synonym Full Names: cyclin dependent kinase inhibitor 1A
• NCBI Official Symbol: CDKN1A
• NCBI Official Synonym Symbols: P21; CIP1; SDI1; WAF1; CAP20; CDKN1; MDA-6; p21CIP1
• NCBI Protein Information: cyclin-dependent kinase inhibitor 1
• UniProt Protein Name: Cyclin-dependent kinase inhibitor 1
• UniProt Gene Name: CDKN1A
• UniProt Synonym Gene Names: CAP20; CDKN1; CIP1; MDA6; PIC1; SDI1; WAF1; MDA-6
• UniProt Entry Name: CDN1A_HUMAN

NCBI Description

This gene encodes a potent cyclin-dependent kinase inhibitor. The encoded protein binds to and inhibits the activity of cyclin-cyclin-dependent kinase2 or -cyclin-dependent kinase4 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, 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 cyclin-dependent kinase2, and may be instrumental in the execution of apoptosis following caspase activation. Mice that lack this gene have the ability to regenerate damaged or missing tissue. Multiple alternatively spliced variants have been found for this gene. [provided by RefSeq, Sep 2015]

Uniprot Description

p21Cip1: a cell-cycle regulatory protein that Interacts with cyclin-CDK2 and -CDK4, inhibiting cell cycle progression at G1. Its expression is tightly controlled by p53, through which this protein mediates the p53-dependent cell cycle arrest at G1 phase.

Protein type: Cell cycle regulation; Inhibitor

Chromosomal Location of Human Ortholog: 6p21.2

Cellular Component: cyclin-dependent protein kinase holoenzyme complex; cytosol; nucleoplasm; nucleus

Molecular Function: cyclin-dependent protein kinase activating kinase activity; cyclin-dependent protein kinase inhibitor activity; protein binding; ubiquitin protein ligase binding

Biological Process: cell cycle arrest; cellular response to amino acid starvation; cellular response to extracellular stimulus; DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest; G1/S transition of mitotic cell cycle; G2/M transition of mitotic cell cycle; negative regulation of cell growth; negative regulation of cell proliferation; negative regulation of phosphorylation; positive regulation of fibroblast proliferation; protein stabilization; Ras protein signal transduction; regulation of cyclin-dependent protein kinase activity; response to DNA damage stimulus