phosphorylasesmedical dictionary

1. General term for enzymes transferring an inorganic phosphate group to some organic acceptor, hence belonging to the transferases.

2. Specifically, enzymes that release a single glucosyl residue from a polyglucose as d-glucose 1-phosphate, the phosphate coming from inorganic orthophosphate; e.g., phosphophorylase, sucrose phosphorylases, cellobiose phosphorylases.

(05 Mar 2000)