>sp|A1VEL0|RISB_DESVV 6,7-dimethyl-8-ribityllumazine synthase OS=Desulfovibrio vulgaris subsp. vulgaris GN=ribH MLHIKTIEGQLDAKGLKFAIVATRFNDFIVDRLIGGACDYLQRHGCDRENLTIVRIPGAF EMPLVAKKLAHSGKYDGIIALGAVIRGATPHFDFVSNEASKGLAQACLESGVPLGFGLLT TDNIEQAIERAGSKAGNKGAEAAAAVLETVRVMEQL