##gff-version 3 P00587 UniProtKB Signal peptide 1 25 . . . . P00587 UniProtKB Chain 26 218 . . . ID=PRO_0000019347;Note=Diphtheria toxin fragment A P00587 UniProtKB Chain 219 560 . . . ID=PRO_0000019348;Note=Diphtheria toxin fragment B P00587 UniProtKB Active site 173 173 . . . . P00587 UniProtKB Binding site 46 46 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 P00587 UniProtKB Binding site 90 90 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 P00587 UniProtKB Disulfide bond 211 226 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 P00587 UniProtKB Disulfide bond 486 496 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250