Rabbit anti-Human p21 Polyclonal Antibody | anti-p21 antibody

p21, CT (Cyclin-dependent Kinase Inhibitor 1, CDK-interacting Protein 1, Melanoma Differentiation-associated Protein 6, MDA-6, CDKN1A, CAP20, CDKN1, CIP1, MDA6, PIC1, SDI1, WAF1) (PE)

Cat. Num. AAA6491316

• Gene Names: CDKN1A; P21; CIP1; SDI1; WAF1; CAP20; CDKN1; MDA-6; p21CIP1
• Reactivity: Human
• Applications: Immunohistochemistry, Western Blot
• Purity: Purified by Protein G Affinity Chromatography.
• Synonyms: p21; Polyclonal Antibody; CT (Cyclin-dependent Kinase Inhibitor 1; CDK-interacting Protein 1; Melanoma Differentiation-associated Protein 6; MDA-6; CDKN1A; CAP20; CDKN1; CIP1; MDA6; PIC1; SDI1; WAF1) (PE); anti-p21 antibody

• Host: Rabbit
• Reactivity: Human
• Clonality: Polyclonal
• Isotype: IgG
• Specificity: Recognizes human CDKN1A.
• Purity/Purification: Purified by Protein G Affinity Chromatography.
• Form/Format: Supplied as a liquid in PBS, pH 7.2. No preservative added. Labeled with R-Phycoerythrin (PE).

• Applicable Applications for anti-p21 antibody: Immunohistochemistry (IHC), FLISA, Western Blot (WB)
• Application Notes: IHC: 1:50-1:100; FLISA: 1:1,000; WB: 1:100-1:500; Applications are based on unconjugated antibody.
• Immunogen: Synthetic peptide selected from the C-terminal region of human CDKN1A (KLH).
• Conjugate: PE
• Note: Preservative Free
• Special Handling: Light sensitive
• Preparation and Storage: Store product at 4 degree C in the dark. DO NOT FREEZE! Stable at 4 degree C for 12 months after receipt as an undiluted liquid. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Caution: PE conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.

Western Blot (WB)

(The anti-CDKN1A Pab is used in Western blot to detect CDKN1A in T-47D cell lysate.)

Immunohistochemistry (IHC)

(Formalin-fixed and paraffin-embedded human cancer tissue reacted with the primary antibody, which was peroxidase-conjugated to the secondary antibody, followed by DAB staining. This data demonstrates the use of this antibody for immunohistochemistry; clinical relevance has not been evaluated. BC = breast carcinoma; HC = hepatocarcinoma.)

Immunofluorescence (IF)

(Confocal immunofluorescent analysis of p21 (CDKN1A) Antibody (C-term) with 293 cell followed by Alexa Fluor 488-conjugated goat anti-rabbit lgG (green).Actin filaments have been labeled with Alexa Fluor 555 phalloidin (red).DAPI was used to stain the cell nuclear (blue).)

Flow Cytometry (FC/FACS)

(p21 (CDKN1A) Antibody (C-term) flow cytometric analysis of 293 cells (right histogram) compared to a negative control cell (left histogram).FITC-conjugated goat-anti-rabbit secondary antibodies were used for the analysis.)

Product Categories/Family for anti-p21 antibody

Antibodies; Cancer Markers

References

1. Fukuchi, K., et al., Biochim. Biophys. Acta 1642(3):163-171 (2003). 2. Frouin, I., et al., J. Biol. Chem. 278(41):39265-39268 (2003). 3. Dupont, J., et al., J. Biol. Chem. 278(39):37256-37264 (2003). 4. Di Padova, M., et al., J. Biol. Chem. 278(38):36496-36504 (2003). 5. Bai, Y.Q., et al., Oncogene 22(39):7942-7949 (2003).

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; Q9BUT4
• Molecular Weight: 18,119 Da
• NCBI Official Full Name: cyclin-dependent kinase inhibitor 1
• NCBI Official Synonym Full Names: cyclin-dependent kinase inhibitor 1A (p21, Cip1)
• 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; DNA synthesis inhibitor; CDK-interacting protein 1; CDK-interaction protein 1; wild-type p53-activated fragment 1; melanoma differentiation associated protein 6
• UniProt Protein Name: Cyclin-dependent kinase inhibitor 1
• Protein Family: P21 prophage-derived protein
• 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-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. Multiple alternatively spliced variants have been found for this gene. [provided by RefSeq, Nov 2010]

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: Inhibitor; Cell cycle regulation

Chromosomal Location of Human Ortholog: 6p21.2

Cellular Component: nucleoplasm; intracellular membrane-bound organelle; perinuclear region of cytoplasm; cyclin-dependent protein kinase holoenzyme complex; nucleus; cytosol

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

Biological Process: nerve growth factor receptor signaling pathway; response to arsenic; response to toxin; DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest; protein amino acid phosphorylation; negative regulation of cell proliferation; positive regulation of fibroblast proliferation; positive regulation of B cell proliferation; G2/M transition of mitotic cell cycle; cell cycle arrest; DNA damage response, signal transduction by p53 class mediator resulting in induction of apoptosis; response to corticosterone stimulus; response to X-ray; response to drug; epidermal growth factor receptor signaling pathway; organ regeneration; fibroblast growth factor receptor signaling pathway; phosphoinositide-mediated signaling; negative regulation of cyclin-dependent protein kinase activity; response to organic nitrogen; positive regulation of programmed cell death; response to hyperoxia; positive regulation of protein kinase activity; Ras protein signal transduction; cellular response to extracellular stimulus; regulation of protein import into nucleus, translocation; innate immune response; negative regulation of phosphorylation; mitotic cell cycle; regulation of cyclin-dependent protein kinase activity; negative regulation of cell growth; response to DNA damage stimulus; negative regulation of apoptosis; G1/S transition of mitotic cell cycle