>sp|Q3BXI0|RISB_XANC5 6,7-dimethyl-8-ribityllumazine synthase OS=Xanthomonas campestris pv. vesicatoria GN=ribH MTHYEGDLRPTTARFAIIASRWNARITDVLVAGARQSLAGNGIGEDAIDVIRVPGAWEIP IAANRVAQSGQHGAIIALGCVIRGDTRHYEHVADLCAEGLMSVQLQTGVPVLNGVLAVER VEDAEARAGGSHGNKGEECALAALELVNLMELLP