ubiquitin

[yoo-bik-wi-tin]

u·biq·ui·tin

[yoo-bik-wi-tin]
noun
a small protein, present in all eukaryotic cells, that participates in the destruction of defective proteins and in the synthesis of new proteins.

Origin:
1985–90; ubiquit(ous) + -in1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Ubiquitin is always a great word to know.
So is quincunx. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
Collins
World English Dictionary
ubiquitin (juːˈbɪkwɪtɪn)
 
n
biochem a small polypeptide, found in most eukaryotic cells, that combines with other proteins to make them susceptible to degradation
 
[C20: from ubiquitous + -in]
 
ubiquiti'nation
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
Medical Dictionary

ubiquitin u·biq·ui·tin (y&oomacr;-bĭk'wĭ-tĭn)
n.
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.
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