>tr|A0A841HCX7|A0A841HCX7_HALSI 6,7-dimethyl-8-ribityllumazine synthase OS=Halobacterium salinarum GN=ribH MTRLGLVVAEFNRSVTERMEAAAREAAADADAAITDTVHVPGAYDSPLAADRLARRDDID AVAVVGAIVTGDTDHDHVIASATADTLTDVSLERDTPVTFGVSGPGMSGAEARERVEKGA AAVESAVSLTQEL