>sp|Q5N0X6|RISB_SYNP6 6,7-dimethyl-8-ribityllumazine synthase OS=Synechococcus sp. GN=ribH MAVFEGSFVNASQFRLAVVIGRFNDLVCEKLLAGCQDCLKRHGVDPDPQGTQVDYAWVPG SFEIPLVARQLALTGRYDAIICLGAVIRGQTPHFDYVASEVAKGVAATSLQTGIPIAFGV LTVDNLQQALERAGIKSNLGWNYALSALEMASLMHQIRSTTGEVPRQTLPLAAAPSNFAG T