345 Biotin synthase Catalyzes the conversion of dethiobiotin (DTB) to biotin by the insertion of a sulfur atom into dethiobiotin via a radical- based mechanism (By similarity). YPTB1182 bioB BIOB_YERPS MATYHHWTVGQALALFDKPLLELLFEAQQVHRQHFDPRQVQVSTLLSIKTGACPEDCKYCPQSSRYKTGLESERLMQVEQVLESAKKAKAAGSTRFCMGAAWKNPHERDMPYLAKMVEGVKALGMETCMTLGSLSKQQAHRLADAGLDYYNHNLDTSPEFYGSIITTRSYQERLDTLNEVRDAGIKVCSGGIVGLGETVRDRAGLLVQLANLPKPPESVPINMLVKVKGTPLENNAEVDAFEFIRTIAVARIMMPSSYVRLSAGREQMNEQTQAMCFMAGANSIFYGCKLLTTPNPDEDKDLQLFRKLGLNPQQTATSHGDREQQQALTEQLLHGDTAQFYNAAV