ID 2.3.1.216 DE 5,7-dihydroxy-2-methylchromone synthase. AN pentaketide chromone synthase. CA 4 H(+) + 5 malonyl-CoA = 5,7-dihydroxy-2-methyl-4H-chromen-4-one + 5 CO2 CA + 5 CoA + H2O. CC -!- A polyketide synthase from the plant Aloe arborescens (aloe). DR Q58VP7, PCS_ALOAR ; //