Description_x000D_ General description_x000D_ 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._x000D_ Immunogen_x000D_ synthetic peptide corresponding to amino acids 303-316 of human Kip2, conjugated to KLH._x000D_ Application_x000D_ Anti-p57Kip2 antibody produced in rabbit has been used in Western blotting._x000D_ Physical form_x000D_ Solution in 0.1 M Tris-glycine, pH 7.4, containing 0.15 M NaCl, and 0.05% sodium azide._x000D_ Disclaimer_x000D_ 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._x000D_ Biochem/physiol Actions_x000D_ 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._x000D_ Preparation Note_x000D_ Purified using protein A