##gff-version 3 Q801S2 UniProtKB Transit peptide 1 45 . . . Note=Mitochondrion;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q0QF01 Q801S2 UniProtKB Chain 46 665 . . . ID=PRO_0000272306;Note=Succinate dehydrogenase [ubiquinone] flavoprotein subunit B%2C mitochondrial Q801S2 UniProtKB Active site 343 343 . . . Note=Proton acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q9YHT1 Q801S2 UniProtKB Binding site 71 76 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q9YHT1 Q801S2 UniProtKB Binding site 94 109 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q9YHT1 Q801S2 UniProtKB Binding site 278 278 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q9YHT1 Q801S2 UniProtKB Binding site 299 299 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q9YHT1 Q801S2 UniProtKB Binding site 311 311 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q9YHT1 Q801S2 UniProtKB Binding site 410 410 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q9YHT1 Q801S2 UniProtKB Binding site 443 443 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q9YHT1 Q801S2 UniProtKB Binding site 454 454 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q9YHT1 Q801S2 UniProtKB Binding site 459 460 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q9YHT1 Q801S2 UniProtKB Modified residue 102 102 . . . Note=Tele-8alpha-FAD histidine;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q9YHT1