phosphorylase

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Related to Phosphorylase a: Phosphorylase b, Phosphorylase kinase

phosphorylase

 [fos-for´ĭ-lās]
an enzyme that, in the presence of inorganic phosphate, catalyzes the conversion of glycogen into glucose-1-phosphate.

phos·phor·y·lase

(fos-fōr'i-lās),
An enzyme cleaving poly(1,4-α-d-glucosyl)n with orthophosphate to form poly(1,4-α-d-glucosyl)n-1 and α-d-glucose 1-phosphate. The active form of the enzyme is a phosphorylated protein.

phosphorylase

(fŏs′fər-ə-lās′, -lāz′)
n.
Any of a class of enzymes that catalyze the attachment of a phosphate group to another molecule.

phos·phor·y·lase

(fos-fōr'i-lās)
A phosphorylated enzyme cleaving poly(1,4-α-d-glucosyl)n with inorganic phosphate to form poly(1,4-α- d-glucosyl)n-1 and α-d-glucose 1-phosphate.
References in periodicals archive ?
Table 4 Effect of eyestalk ablation (ESX) (24 h post-ablation) and injection of methionine-enkephalin into intact and ablated crabs on hepatopancreas phosphorylase activity levels in Scylla serrata No treatment Phosphorylase a Intact 2.62 [+ or -] 0.29 (Group 1) ESX 1.72 [+ or -] 0.31 b (Group 2) (-34.35) Two-way ANOVA: [F.sub.1,90] (Between groups) = 716.848, p [less than] 0.001; [F.sub.4,90] (Among treatments) = 23.852, p [less than] 0.001; [F.sub.4,90] (Interaction) = 18.208, P [less than] 0.001.
Total glycogen phosphorylase activity, on the other hand, increases during germination, but this increase is at least partly nullified by the conversion of some of the active glycogen phosphorylase a form to its inactive b form.