>sp|C3MR14|RISB_SULIL 6,7-dimethyl-8-ribityllumazine synthase OS=Sulfolobus islandicus GN=ribH MQEKSIRLGIVVAEFNYDITQLMLQKALSHAKFLNAEVKVVIKVPGTFDMPLAIKKLLEK DFIDAVVTLGAVIKGETKHDEIVASQTARKIVDLSTEFNKPVTLGIIGHGATHEQAVERI EEYATRAVEAAIKLVQRTRKIDELKEVKETVIID