GeneTex
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p21 Cip1 antibody [WA-1]

Anti-p21 Cip1 antibody [WA-1] used in IHC (Paraffin sections) (IHC-P). GTX34926

Cat No. GTX34926

Host Mouse
Clonality Monoclonal
Clone Name WA-1
Isotype IgG1
Application ICC/IF, IHC-P
Reactivity Human, Mouse, Rat, Monkey, Chimpanzee
APPLICATION

Application Note

*Optimal dilutions/concentrations should be determined by the researcher.
Application Dilution
ICC/IF 1-2ug/ml
IHC-P 0.5-1ug/ml for 30 minutes at RT

Note :

IHC-P
Boiling tissue sections in 10mM citrate buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes

Not tested in other applications.

Calculated MW

18 kDa. ( Note )

Specificity/Sensitivity

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 cdk s 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). In ELISA, MAb WA-1 is useful either as a solid phase or for detection of p21 protein.
PROPERTIES

Form

Liquid

Buffer

Prepared in 10mM PBS with 0.05% BSA and 0.05% azide.

Storage

Store as concentrated solution. Centrifuge briefly prior to opening vial. For short-term storage (1-2 weeks), store at 4ºC. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.

Antigen Species

Human

Immunogen

Human recombinant p21 protein

Purification

Ab purified from Bioreactor Concentrate by Protein A/G

Conjugation

Unconjugated

Note

For laboratory use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.
TARGET

Synonyms

Cyclin Dependent Kinase Inhibitor 1A,Cap20,Cdkn1,Cip1,Mda-6,P21,Sdi1,Waf1,P21Cip1,Cdkn1A

Background

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]

Database

Research Area

DATA IMAGES
Anti-p21 Cip1 antibody [WA-1] used in IHC (Paraffin sections) (IHC-P). GTX34926

GTX34926 IHC-P Image

Formalin-fixed, paraffin-embedded human Bladder Carcinoma stained with p21 Monoclonal Antibody (WA-1).