>sp|B1KZ46|RISB_CLOBM 6,7-dimethyl-8-ribityllumazine synthase OS=Clostridium botulinum GN=ribH MKIYEGRLTAEGLKVGIIVSRFNEFITSKLLAGSIDCLKRHGAKEDNIEVCWVPGAFEIP VIAKKMASKGKYDAVICLGAVIRGATPHFDYVSSEVSKGVAHVSLDKEVPVIFGVLTTDT IEQAIERAGTKAGNKGYDAAMSAIEMSNLMKVLD