[ yoo-bik-wi-tin ]
/ yuˈbɪk wɪ tɪn /
a small protein, present in all eukaryotic cells, that participates in the destruction of defective proteins and in the synthesis of new proteins.
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Words nearby ubiquitin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for ubiquitin
/ (juːˈbɪkwɪtɪn) /
biochem a small polypeptide, found in most eukaryotic cells, that combines with other proteins to make them susceptible to degradation
Derived forms of ubiquitinubiquitination, noun
Word Origin for ubiquitin
C20: from ubiquitous + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for ubiquitin
[ yōō-bĭk′wĭ-tĭn ]
A polypeptide found in all eukaryotic cells, including plant cells, that participates in a variety of cellular functions including protein degradation.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.