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p53

[ pē′fĭf′tē-thrē ]
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n.

A protein that is the product of a tumor suppressor gene, regulates cell growth and proliferation, and prevents unrestrained cell division after chromosomal damage, as from ultraviolet or ionizing radiation.The absence of p53 as a result of a gene mutation increases the risk of developing various cancers.

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QUIZ YOURSELF ON "WAS" VS. "WERE"!

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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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