>sp|A3DBD3|BIOB_ACET2 Biotin synthase OS=Acetivibrio thermocellus GN=bioB MDFLTLMENKLDEGRMITFEEAVELAKGKIEDEKLFLLADKLCKKNMGRRVDLCSIINAK SGGCSENCKFCAQSGHYDTGVKIYPLLDVDDVLKAAKENEKEGVHRFSLVTSGKSVSDEE FEKILGIYSVLRKETNLKLCASLGSLSYERAVRLKEAGVSMYHHNIETCREYYPKICDTH TYDDRINTVKNAAKAGLEICCGGIIGMGESMEQRIKMAFEIRELGVKSVPINVLNPIKGT PFENVRSLSPDEILRTIALFRLIMPYAHIRYAGGRMCLGEHQSKGFKAGVSAMLVGNYLT TVGNKISDDLEMIQRMGLEI