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  • SAB4500071 - Anti-p57 KIP2 antibody produced in rabbit

SAB4500071 Sigma-Aldrich

Anti-p57 KIP2 antibody produced in rabbit

affinity isolated antibody

Synonym: CDKN1C, CDN1C, CDNC, Cyclin-dependent kinase inhibitor 1C, Cyclin-dependent kinase inhibitor p57



Related Categories Alphabetical Index, Antibodies, P-PA, Primary Antibodies
conjugate   unconjugated
clone   polyclonal
biological source   rabbit
application(s)   ELISA: 1:1000
  immunofluorescence: 1:100-1:500
  western blot: 1:500-1:1000
species reactivity   human, mouse
mol wt   antigen mol wt 32 kDa
form   buffered aqueous solution
shipped in   wet ice
storage temp.   −20°C
antibody form   affinity isolated antibody
antibody product type   primary antibodies
concentration   ~1 mg/mL
NCBI accession no.   P49918
UniProt accession no.   P49918
Gene Information   human ... CDKN1C(1028)


General description

Cyclin-dependent kinase inhibitor p57 (CDKN1C) or p57 KIP2 (Kinase inhibitory protein) is a tumor suppressor gene mapped to telomeric end of human chromosome 11p15.5, a region associated with sporadic cancers and Beckwith-Wiedemann syndrome. Human p57KIP2 codes for a 316 amino acid protein characterized with conserved amino- and carboxy-terminal domains, and consisting of sequences with proline-alanine repeats. During mouse embryogenesis, p57 KIP2 transcript is expressed highly in skeletal muscle, brain, heart, lungs, and eye.


The antiserum was produced against synthesized peptide derived from human p57 Kip2.

Immunogen Range: 267-316


Anti-p57 KIP2, C-Terminal antibody produced in rabbit has been used for Western blot analysis.

Physical form

Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.


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.

Biochem/physiol Actions

Cyclin-dependent kinase inhibitor p57 (CDKN1C) or p57 KIP2, plays a vital role as a tight-binding inhibitor of several G1 cyclin/ cyclin-dependent kinase (CDK) complexes. The encoded protein acts as a negative regulator of cell proliferation. Mutation of this gene results in Beckwith-Wiedemann syndrome. p57Kip2 protein is involved in the glucocorticoid mediated inhibition of cell proliferation in HeLa cells. p57Kip2 also facilitates direct inhibition of DNA replication by binding to the proliferating cell nuclear antigen. p57Kip2 is a tumor suppressor protein, and helps in normal developmental process.

Features and Benefits

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Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy


Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

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