>sp|Q97LG8|RISB_CLOAB 6,7-dimethyl-8-ribityllumazine synthase OS=Clostridium acetobutylicum GN=ribH MKIYEGKLISKNLKFGIVAGRFNEFIVSKLLSGAVDALKRHGCDEDSIELAWAPGAFEIP LISQKMAESGKYDAVICLGAVIRGATSHFDYVSSEVSKGIAQTSLKTGCPVIFGVLTTDN IEQAIERAGTKSGNKGFDAAVTAIEMANLIKTIGE