##gff-version 3 Q820Q4 UniProtKB Chain 1 475 . . . ID=PRO_0000330526;Note=Siroheme synthase Q820Q4 UniProtKB Region 1 204 . . . Note=Precorrin-2 dehydrogenase /sirohydrochlorin ferrochelatase;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Region 218 475 . . . Note=Uroporphyrinogen-III C-methyltransferase;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Active site 250 250 . . . Note=Proton acceptor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Active site 272 272 . . . Note=Proton donor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Binding site 22 23 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Binding site 43 44 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Binding site 227 227 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Binding site 303 305 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Binding site 308 308 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Binding site 333 334 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Binding site 385 385 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Binding site 414 414 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q820Q4 UniProtKB Modified residue 129 129 . . . Note=Phosphoserine;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646