Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun An enzyme that catalyzes the production of glucose phosphate from glycogen and inorganic phosphate.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun biochemistry Any
enzyme thatcatalyzes the production of glucose phosphate fromglycogen and inorganicphosphate
Etymologies
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Examples
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If the phosphorylase is allowed to act on glycogen in the presence of phosphoric acid, the whole glycogen molecule is split up, with the simultaneous appearance of glucose molecules bound to phosphoric acid.
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In this manner, the glycogen catabolizing phosphorylase is regulated by two enzymes working in opposing directions in a reversible process, one kinase and one phosphatase.
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Phosphorylase kinase phosphorylates phosphorylase, which is activated
MedPoster 1992 1992
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The Coris launched a full-fledged effort in enzymology, concentrating on phosphorylase, the enzyme which converts glycogen to glucose-1-phosphate.
Gerty Theresa Cori. 2009
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Reporting two forms of phosphorylase and their interrelationships, the Coris foreshadowed regulation by protein phosphorylation, now known to be a major regulatory mechanism of numerous cellular processes.
Gerty Theresa Cori. 2009
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I had to work out the determination of the independent specific activities of the sugars and bases which I did by treating the nucleosides with nucleoside phosphorylase and hypoxanthine to exchange for the base to be analyzed.
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I then became interested in agents that could block the effects of cyclic AMP on phosphorylase kinase and phosphorylase activation.
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I have tried to describe your field of research and elegant discoveries in your studies of reversible protein phosphorylation, going back to the initial detection of the activation mechanism of phosphorylase, and continuing with protein phosphatases.
The Nobel Prize in Physiology or Medicine 1992 - Presentation Speech 1997
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During this period I first heard about the enzyme, phosphorylase, which was crystallized by Arda Green and the Coris and was found to exist in two interconvertible forms that they referred to as phosphorylase b and phosphorylase a. Phosphorylase b required 5'-AMP for enzymic activity whereas phosphorylase a was active without this nucleotide.
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One of my own projects was concerned with the molecular mechanism of action of cyclic AMP in promoting the phosphorylase
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