##gff-version 3 P55250 UniProtKB Transit peptide 1 15 . . . Note=Mitochondrion;Ontology_term=ECO:0000255;evidence=ECO:0000255 P55250 UniProtKB Chain 16 494 . . . ID=PRO_0000010331;Note=Fumarate hydratase%2C mitochondrial P55250 UniProtKB Active site 218 218 . . . Note=Proton donor/acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P05042 P55250 UniProtKB Active site 348 348 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P9WN93 P55250 UniProtKB Binding site 128 130 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P05042 P55250 UniProtKB Binding site 159 162 . . . Note=In site B;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P05042 P55250 UniProtKB Binding site 169 171 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P05042 P55250 UniProtKB Binding site 217 217 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P9WN93 P55250 UniProtKB Binding site 349 349 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P9WN93 P55250 UniProtKB Binding site 354 356 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P9WN93 P55250 UniProtKB Site 361 361 . . . Note=Important for catalytic activity;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P05042