ID 2.3.1.221 DE noranthrone synthase. AN norsolorinic acid anthrone synthase. AN polyketide synthase A. CA hexanoyl-[ACP] + 7 malonyl-CoA + 6 H(+) = noranthrone + holo-[ACP] + CA 7 CO2 + 7 CoA + 2 H2O. CC -!- A multi-domain polyketide synthase involved in the synthesis of CC aflatoxins in the fungus Aspergillus parasiticus. CC -!- The hexanoyl starter unit is provided to the acyl-carrier protein CC (ACP) domain by a dedicated fungal fatty acid synthase. DR Q12053, AFLC_ASPPU ; Q30DW5, PKSA_DOTSE ; M2XHZ5, PKSA_DOTSN ; DR Q12397, STCA_EMENI ; //