>sp|B2SNW4|RISB_XANOP 6,7-dimethyl-8-ribityllumazine synthase OS=Xanthomonas oryzae pv. oryzae GN=ribH MTHYEGDLRPPTARFAIIASRWNARITDVLVAGARQSLAGNGIGEDAIDVIRVPGAWEIP VAANRVAQSGQHGAIIALGCVIRGDTRHYEHVADLCAEGLMSVQLQTGVPVLNGVLAVER VEDAEARAGGSHGNKGEECALAALELVNLMELLP