>sp|B7J403|BIOB_ACIF2 Biotin synthase OS=Acidithiobacillus ferrooxidans GN=bioB MNNSTALQTLDAILEIYARPFNDLIYAAQQVHRLHFDPNAIQCSTLLSIKTGGCPEDCGY CSQSVHHQTALQAEPLMDLEQVRAAAREAKANGAQRLCMGAAWRSPHDRDIEKVAAMIGV VKEYGLESCVTLGMLKPGQAERLQHAGLDYYNHNLDTSPEFYGEVIHTRSYQDRLDTLEA VRDAGIRICSGGILGMGESRRDRARMLQVLAQLPQAPESIPINALVPIPGTPLEAAEPID GFEFVRTVAVTRILFPKAYVRLSAGREAMSDELQALAFLAGANSIFLGDRLLTTGNASTG HDQALFNRLGLHRSAD