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[trans-fuh-reys, -reyz] /ˈtræns fəˌreɪs, -ˌreɪz/
noun, Biochemistry
any of the class of enzymes, as the transaminases that catalyze the transfer of an organic group from one compound to another.
1945-50; transfer + -ase Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for transferase


any enzyme that catalyses the transfer of a chemical group from one substance to another
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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transferase in Medicine

transferase trans·fer·ase (trāns'fə-rās', -rāz')
Any of various enzymes that catalyze the transfer of a chemical group, such as a phosphate or an amine, from one molecule to another.

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

any one of a class of more than 450 enzymes that catalyze the transfer of various chemical groups (other than hydrogen) from one compound to another. Transaminases, for example, catalyze the transfer of an amino group (NH2) from an amino acid to an a-keto acid. Phosphate, methyl (CH3), and sulfur-containing groups are among the other groups transferred by the action of these enzymes. For the large and important group of enzymes that catalyze the transfer of hydrogen, see oxidoreductase.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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