>sp|B5ELR8|BIOB_ACIF5 Biotin synthase OS=Acidithiobacillus ferrooxidans GN=bioB MNNSTALQTLDAILEIYARPFNDLIYAAQQVHRLHFDPNAIQCSTLLSIKTGGCPEDCGY CSQSVHHQTALQAEPLMDLEQVRAAAREAKANGAQRLCMGAAWRSPHDRDIEKVAAMIGV VKEYGLESCVTLGMLKPGQAERLQHAGLDYYNHNLDTSPEFYGEVIHTRSYQDRLDTLEA VRDAGIRICSGGILGMGESRRDRARMLQVLAQLPQAPESIPINALVPIPGTPLEAAEPID GFEFVRTVAVTRILFPKAYVRLSAGREAMSDELQALAFLAGANSIFLGDRLLTTGNASTG HDQALFNRLGLHRSAD