>sp|Q9A8J4|RISB2_CAUVC 6,7-dimethyl-8-ribityllumazine synthase 2 OS=Caulobacter vibrioides GN=ribH2 MVEDKIRLLIVEGRSHSGISDELLRGATQAIEARGADYDVITVSNALQIPTVIAMAEDAG HRPVGVRYDGYVALGVVIRGETYHFELVANETARGLQDLGVAKRLPIGFGVLAVDEEAQA LSRARVSEGDRGGAAAKACLETIGLKRQLLGQAR