>sp|Q975M5|RISB_SULTO 6,7-dimethyl-8-ribityllumazine synthase OS=Sulfurisphaera tokodaii GN=ribH MPDQSINLAIVVAEFNYDITYLMLQRAIAHAKFLGANVKVVFKVPGSYDMAIAVKELLKR DDIDAVVTLGAVIKGETKHDEIVATQTARKILDLSVEYGKPVTLGIIGHGVTHEQAVERI EEYSTRAVEAAIKLAKRLRELRKIQTLNEEMVVIE