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noun Biochemistry.
  1. the protein component that with a coenzyme forms a complete enzyme.

Origin of apoenzyme

From French, dating back to 1935–40; see origin at apo-, enzyme
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for apoenzyme


  1. a protein component that together with a coenzyme forms an enzyme
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

apoenzyme in Medicine


([object Object])
  1. The protein component of an enzyme that combines with the coenzyme to form the active enzyme.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

apoenzyme in Science


  1. The protein component of an enzyme, to which the coenzyme attaches to form an active enzyme.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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