phosphorylase(redirected from Phosphorylase a)
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Any of a class of enzymes that catalyze the attachment of a phosphate group to another molecule.
(Biochemistry) any of a group of enzymes that catalyse the hydrolysis of glycogen to glucose-1-phosphate
[C20: from phosphorus + -yl + -ase]
phos•pho•ryl•ase(ˈfɒs fər əˌleɪs, -ˌleɪz, fɒsˈfɔr ə-, -ˈfɒr-)
any enzyme, occurring widely in animal and plant tissue, that in the presence of an inorganic phosphate catalyzes the conversion of glycogen into sugar phosphate.