>sp|A1VUJ4|BIOB_POLNA Biotin synthase OS=Polaromonas naphthalenivorans GN=bioB MTSITTIPLSTLRSSLPARPDAAAAPQRWRVADIEALYALPFMDLLFRAQQVHRANFDAN QVQLSTLLSIKTGGCAEDCGYCPQSSHFETEVKASKLMALDEVMAAAQAAKDQGATRFCM GAAWSRPKERDMERVTEMVREVRGLGLETCMTLGMLEAEQAQALKDAGLDYYNHNLDSSP EFYGSIISTRTYQDRLDTLENVRGAGINVCCGGIVGMGESRAQRAGLVAQLANLEPYPES VPINNLVAVEGTPLADTPPLDPFEFVRTIAVARITMPRTMVRLSAGREQMDEALQALCFM AGANSIFYGDRLLTTSNPQADKDRQLFARLGLKVQGERPAATVQG