>tr|A0A2R3EXX3|A0A2R3EXX3_9GAMM 6,7-dimethyl-8-ribityllumazine synthase OS=Shewanella sp. WE21 GN=ribH MNVVQGNIEAKNAKVAIVISRFNSFLVESLLEGALDTLKRFGQVSDDNITVVRVPGAVEL PLAARRVAASGKFDGIIALGAVIRGGTPHFDFVAGECNKGLAQVALEFDLPVAFGVLTTD TIEQAIERSGTKAGNKGGEAALSLLEMVNVLQELEQQLL