P21 Polyclonal antibody

P21 Polyclonal Antibody for WB, IF, ELISA

Host / Isotype

Rabbit / IgG

Reactivity

mouse, rat and More (2)

Applications

WB, IHC, IF/ICC, ELISA

Conjugate

Unconjugated

Publications

28

Cat no : 27296-1-AP

Synonyms

CAP20, CDK interacting protein 1, CDKN1, CDKN1A, CIP1, MDA 6, MDA6, P21, P21;CDKN1A, p21CIP1, PIC1, SDI1, WAF1

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Validation Data Gallery

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  WB analysis using 27296-1-AP

  Various lysates were subjected to SDS PAGE followed by western blot with 27296-1-AP (P21 antibody) at dilution of 1:600 incubated at room temperature for 1.5 hours.

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  IF Staining of MCF-7 using 27296-1-AP

  Immunofluorescent analysis of (4% PFA) fixed MCF-7 cells using P21 antibody (27296-1-AP) at dilution of 1:400 and CoraLite®488-Conjugated Goat Anti-Rabbit IgG(H+L).

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Tested Applications

• Positive WB detected in: Neuro-2a cells, C6 cells, NIH/3T3 cells
• Positive IF/ICC detected in: MCF-7 cells

Recommended dilution

• Western Blot (WB): WB : 1:500-1:1000
• Immunofluorescence (IF)/ICC: IF/ICC : 1:200-1:800

It is recommended that this reagent should be titrated in each testing system to obtain optimal results.

Sample-dependent, Check data in validation data gallery.

Published Applications

• WB: See 25 publications below
• IHC: See 1 publications below
• IF: See 5 publications below

Product Information

27296-1-AP targets P21 in WB, IHC, IF/ICC, ELISA applications and shows reactivity with mouse, rat samples.

• Tested Reactivity: mouse, rat
• Cited Reactivity: human, mouse, rat, canine
• Host / Isotype: Rabbit / IgG
• Class: Polyclonal
• Type: Antibody
• Immunogen: P21 fusion protein Ag26129
• Full Name: cyclin-dependent kinase inhibitor 1A (p21, Cip1)
• Calculated Molecular Weight: 18 kDa
• Observed Molecular Weight: 21 kDa
• GenBank Accession Number: BC000275
• Gene Symbol: p21
• Gene ID (NCBI): 1026
• RRID: AB_2880834
• Conjugate: Unconjugated
• Form: Liquid
• Purification Method: Antigen affinity purification
• Storage Buffer: PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
• Storage Conditions: Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20^oC storage. 20ul sizes contain 0.1% BSA.

Background Information

CDKN1A (p21, CIP1, WAF1) is a cyclin-dependent kinase inhibitor. CDKN1A binds to and inhibits the activity of cyclin-CDK2 or -CDK4 complexes, and thus functions as a regulator of cell cycle progression at the G1 phase. The expression of CDKN1A is induced by wild-type but not mutant p53 protein, through which CDKN1A mediates the p53-dependent cell cycle G1 phase arrest in response to a variety of stress stimuli. CDKN1A can interact with proliferating cell nuclear antigen (PCNA), and plays a regulatory role in S phase DNA replication and DNA damage repair. CDKN1A 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.

Publications

Species	Application	Title
human	WB,IF	Am J Respir Crit Care Med; CD38 Mediates Lung Fibrosis by Promoting Alveolar Epithelial Cell Aging; Authors - Huachun Cui
mouse	WB	J Clin Invest; Circular RNA circEsyt2 regulates vascular smooth muscle cell remodeling via splicing regulation.; Authors - Xue Gong
mouse	WB	Biomaterials; MSC-derived exosomes protect against oxidative stress-induced skin injury via adaptive regulation of the NRF2 defense system.; Authors - Tian Wang
mouse	IF	Cell Mol Life Sci; Silencing circSERPINE2 restrains mesenchymal stem cell senescence via the YBX3/PCNA/p21 axis; Authors - Fenglei Chen
mouse	WB	Oxid Med Cell Longev; PIN1 Protects Hair Cells and Auditory HEI-OC1 Cells against Senescence by Inhibiting the PI3K/Akt/mTOR Pathway.; Authors - Yanzhuo Zhang
mouse	IF	Front Cell Dev Biol; P53 independent pathogenic mechanisms contribute to BubR1 microcephaly; Authors - Noelle A Sterling