Topic Completed: 1 June 2005

Minor changes: 24 January 2020

Copyright: 2002-2020,, Inc.

PubMed Search: p21 [title]

Nat Pernick, M.D.
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Table of Contents
Definition / general
Cite this page: Pernick N. p21. website. Accessed August 3rd, 2020.
Definition / general
  • Gene at 6p21.2
  • Negative cell cycle regulator in G2-M phase and G1-S phase
  • Regulated transcriptionally by p53
  • Also called p21 WAF1/CIP1
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