Master of non-enzymatic functions: ISOAMYLASE complex structure reveals additional metabolic roles
Plant Science Research WeeklyPlants store glucose polymers in semicrystalline starch granules. Starch debranching enzymes, including isoamylases (ISAs), are involved in maintaining starch’s crystalline organization. In maize, sugary1 (su1) mutants with impaired ISA1 enzymatic activity accumulate soluble polyglucan chains (phytoglycogen).…