##gff-version 3 Q4ZTJ2 UniProtKB Chain 1 741 . . . ID=PRO_0000260680;Note=1%2C4-alpha-glucan branching enzyme GlgB Q4ZTJ2 UniProtKB Active site 420 420 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00685 Q4ZTJ2 UniProtKB Active site 473 473 . . . Note=Proton donor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00685