>tr|F7X4B6|F7X4B6_SINMM 6,7-dimethyl-8-ribityllumazine synthase OS=Sinorhizobium meliloti GN=ribH MAKIKPVHILIVEARFYDDMADAMLDGAKHALDAAGATYDIVTVPGALEIPAAIAMALDG ADEGGAEYDGFVALGMVIRGETYHFDIVANESARALMDLAVSESLALGNGILTVENDEQA WARARRTEGDKGGFAARAALTMIELKQRLGAEK