3-hydroxy-3-methylglutarate + malonyl-CoA => (3S)-3-hydroxy-3-methylglutaryl-CoA + malonate
3-hydroxy-3-methylglutarate + malonyl-coa => (3s)-3-hydroxy-3-methylglutaryl-coa + malonate
3-hydroxy-3-methylglutarate + malonyl-CoA => (3S)-3-hydroxy-3-methylglutaryl-CoA + malonate
3-hydroxy-3-methylglutarate + malonyl-coa => (3s)-3-hydroxy-3-methylglutaryl-coa + malonate