P1484
Anti-p21WAF1/Cip1antibody, Mouse monoclonal
clone CP74, purified from hybridoma cell culture
Synonym(s):
Anti-CDKN1A, Anti-Cip1, Anti-WAF1, Anti-p21
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About This Item
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biological source
mouse
conjugate
unconjugated
antibody form
purified immunoglobulin
antibody product type
primary antibodies
clone
CP74, monoclonal
form
buffered aqueous solution
mol wt
antigen 21 kDa
species reactivity
mouse, human
concentration
~1 mg/mL
technique(s)
immunoprecipitation (IP): suitable
indirect ELISA: suitable
microarray: suitable
western blot: 5-10 μg/mL using LNCap cells (human prostate adenocarcinoma) treated with MG132 proteosome inhibition.
isotype
IgG2b
UniProt accession no.
shipped in
dry ice
storage temp.
−20°C
target post-translational modification
unmodified
Gene Information
human ... CDKN1A(1026)
mouse ... Cdkn1a(12575)
General description
Monoclonal Anti-p21WAF1/Cip1 (mouse IgG2b isotype) is derived from the CP74 hybridoma produced by the fusion of mouse myeloma cells and splenocytes from a BALB/c mouse immunized with recombinant human p21WAF1/Cip1. p21WAF1/Cip1 is 21 kDa and designated as Cip1, WAF1, Sdi1, Pic1, CAP20.
Mouse monoclonal clone CP74 anti-p21WAF1/Cip1 antibody reacts specifically with p21WAF1/Cip1. Two families of CKIs have been identified. The p21WAF1/Cip1 family contains p21WAF1/Cip1, p27Kip1 and p57Kip2.
Immunogen
recombinant human p21WAF1/Cip1.
Application
Applications in which this antibody has been used successfully, and the associated peer-reviewed papers, are given below.
Immunofluorescence (1 paper)
Western Blotting (1 paper)
Immunofluorescence (1 paper)
Western Blotting (1 paper)
Mouse monoclonal clone CP74 anti-p21WAF1/Cip1 antibody may be used for ELISA, immunoblotting (21 kDa) and immunoprecipitation (p21/cyclin A/Cdk2 complexes, native and denatured). The availability of a monoclonal antibody reacting specifically with p21WAF1/Cip1 enables the subcellular detection and localization of p21WAF1/Cip1 and the measurement of relative differences in p21WAF1/Cip1 levels as a function of cell cycle phase.
Biochem/physiol Actions
Regulation of cell cycle progression in eukaryotic cells depends on the expression of proteins called cyclins. These proteins form complexes with several different cyclin dependent kinases (CDKs). The catalytic activity of cyclin dependent kinases (CDK) is regulated by two general mechanisms: protein phosphorylation and association with regulatory subunits, which include the cyclins and the CDK inhibitors (CKIs). These inhibit all kinases involved in the G1/S transition. The the p16INK4a family, which includes p15INK4b, p16INK4a, p18INK4c and p19INK4d, inhibits Cdk4 and Cdk6 specifically.
The p21WAF1/Cip1 inhibit all kinases involved in the G1/S transition of cell cycle. p21WAF1/Cip1 binds tightly to the G1 and S phase kinases, cyclin E/Cdk2, cyclin D/Cdk4, and cyclin A/Cdk2, and effectively inhibits their activity, whereas p21WAF1/Cip1 is relatively a poor inhibitor of the G2/M phase kinase cyclin B/Cdc2. In addition, p21WAF1/Cip1 inhibits proliferating cell nuclear antigen (PCNA), binds to and inhibits inactivation of Rb which is essential for cell cycle progression, and may also interact with E2F and protect cells against p53-mediated apoptosis.
Physical form
Solution in phosphate buffered saline, pH 7.4 containing 1% bovine serum albumin and 15 mM sodium azide
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
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Product No.
Description
Pricing
Storage Class Code
10 - Combustible liquids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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B D Dynlacht et al.
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