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Anti-p57Kip2 antibody produced in rabbit

IgG fraction of antiserum, buffered aqueous solution

MDL number:

biological source


Quality Level



antibody form

IgG fraction of antiserum

antibody product type

primary antibodies




buffered aqueous solution

mol wt

antigen 57 kDa

species reactivity

human, mouse (predicted), bovine


immunoprecipitation (IP): 5 μg using 0.5-1 mg of HeLa nuclear extract and a bovine brain nuclear extract
western blot: 2 μg/mL using HeLa nuclear extract and bovine brain nuclear extract

UniProt accession no.

shipped in

dry ice

storage temp.


Gene Information

human ... CDKN1C(1028)
mouse ... Cdkn1c(12577)

General description

Cyclin-dependent kinase inhibitor p57 (CDKN1C) or p57KIP2 (kinase inhibitory protein) is a tumor suppressor gene. It is a 316 amino acid protein with conserved amino- and carboxy-terminal domains and sequences with proline-alanine repeats. During mouse embryogenesis, p57KIP2 transcript is highly expressed in skeletal muscles, brain, heart, lungs and eye. The gene encoding this protein is localized on human chromosome 11p15.4.


synthetic peptide corresponding to amino acids 303-316 of human Kip2, conjugated to KLH.


Anti-p57Kip2 antibody produced in rabbit has been used in Western blotting.

Biochem/physiol Actions

Cyclin-dependent kinase inhibitor p57 (CDKN1C) or p57KIP2 (kinase inhibitory protein) plays a vital role as a tight-binding inhibitor of several G1 cyclin/cyclin-dependent kinase (CDK) complexes. It is a negative regulator of cell proliferation. Mutation in this gene has been associated with Beckwith-Wiedemann syndrome. p57Kip2 facilitates direct inhibition of DNA replication by binding to the proliferating cell nuclear antigen.

Physical form

Solution in 0.1 M Tris-glycine, pH 7.4, containing 0.15 M NaCl, and 0.05% sodium azide.

Preparation Note

Purified using protein A


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Storage Class Code

12 - Non Combustible Liquids

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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Quotes and Ordering

Antonio Cerqueira et al.
Molecular and cellular biology, 34(8), 1452-1459 (2014-02-12)
The Cip/Kip family, namely, p21(Cip1), p27(Kip1), and p57(Kip2), are stoichiometric cyclin-dependent kinase inhibitors (CKIs). Paradoxically, they have been proposed to also act as positive regulators of Cdk4/6-cyclin D by stabilizing these heterodimers. Loss of p21(Cip1) and p27(Kip1) reduces Cdk4/6-cyclin D
Fetal growth patterns in Beckwith-Wiedemann syndrome.
Mussa A
Clinical Genetics, 90(1), 21-27 (2016)
Sesamin, a lignan of sesame, down-regulates cyclin D1 protein expression in human tumor cells
Tomoya Yakota
Cancer Science, 98(9), 1447?1453-1447?1453 (2007)
Yuhei Yamauchi et al.
Genes to cells : devoted to molecular & cellular mechanisms, 25(6), 427-438 (2020-04-09)
All trophoblast subtypes of the placenta are derived from trophoblast stem cells (TSCs). TSCs have the capacity to self-renew, but how the proliferation of these cells is regulated in the undifferentiated state has been largely unclear. We now show that
Tomoya Yokota et al.
Cancer science, 98(9), 1447-1453 (2007-07-21)
Sesamin is a major lignan constituent of sesame and possesses multiple functions such as antihypertensive, cholesterol-lowering, lipid-lowering and anticancer activities. Several groups have previously reported that sesamin induces growth inhibition in human cancer cells. However, the nature of this growth

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