[′lak·tə‚nās] (biochemistry) The enzyme that catalyzes the hydrolysis of 6-phosphoglucono-Δ-lactone to 6-phosphogluconic acid in the pentose phosphate pathway.
lactonase
lac·to·nase
(lak'tō-nās), 1. Synonym(s): gluconolactonase2. An enzyme that converts a lactone to the corresponding organic acid.