kinase

[kahy-neys, -neyz, kin-eys, -eyz]
noun Biochemistry.
a transferase that catalyzes the phosphorylation of a substrate by ATP.

Origin:
1900–05; kin(etic) + -ase

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World English Dictionary
kinase (ˈkaɪneɪz, ˈkɪn-)
 
n
1.  any enzyme that can convert an inactive zymogen to the corresponding enzyme
2.  any enzyme that brings about the phosphorylation of a molecule
 
[C20: from kin(etic) + -ase]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

kinase ki·nase (kī'nās', -nāz', kĭn'ās', -āz')
n.

  1. An enzyme that catalyzes the conversion of a proenzyme to an active enzyme.

  2. A various enzyme that catalyzes the transfer of a phosphate group from a donor, such as ADP or ATP, to an acceptor.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
kinase   (kī'nās', -nāz', kĭn'ās', -āz')  Pronunciation Key 
Any of various enzymes that catalyze the transfer of a phosphate group from a donor, such as ADP or ATP, to an acceptor.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
So to learn more about the process, the researchers disabled kinase proteins in yeast cells.
Pyruvate kinase deficiency is an inherited lack of the enzyme pyruvate kinase, which is used by red blood cells.
Tyrosine kinase inhibitor drugs block proteins involved in tumor cell growth and production.
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