>4AP8_1|Chains A, B, C, D|MOLYBDOPTERIN SYNTHASE CATALYTIC SUBUNIT|HOMO SAPIENS (9606) EVEEKSKDVINFTAEKLSVDEVSQLVISPLCGAISLFVGTTRNNFEGKKVISLEYEAYLPMAENEVRKICSDIRQKWPVKHIAVFHRLGLVPVSEASIIIAVSSAHRAASLEAVSYAIDTLKAKVPIWKKEIYEE