3 rezultati
Transglucosylation activities of spinach alpha-glucosidase I and IV, which have different substrate specificity for hydrolyzing activity, were investigated. In a maltose mixture, alpha-glucosidase I, which has high activity toward not only maltooligosaccharides but also soluble starch and can
The de novo synthesis of maltose in spinach (Spinacia oleracea L.) was shown to be catalyzed by a maltose synthase, which converts two molecules of α-D-glucose-1-phosphate (α-G1P) (Km 1.5 mmol l(-1)) to maltose and 2 orthophosphate (Pi). This enzyme was purified 203-fold by fractionated ammonium
An overexpression system for spinach apocytochrome b(6) as a fusion protein to a maltose-binding protein in Escherichia coli was established using the expression vector pMalp2. The fusion of the cytochrome b(6) to the periplasmic maltose-binding protein directs the cytochrome on the Sec-dependent