>sp|A0Q3H6|RISB_CLONN 6,7-dimethyl-8-ribityllumazine synthase OS=Clostridium novyi GN=ribH MRVYEGNLISEGKKYGIVVGRFNEFIGSKLLSGALDALKRHGVKEDEIEISWVPGAFEIP LVAKKMAKTKKYDSVICLGAVIKGSTAHFDYVSSEVSKGIANVSLDTEVPVIFGVLTTDN IEQAIERAGTKAGNKGYEAAVTAIEMANLLSEI