label: phloroisovalerophenone synthase activity
label_lc: phloroisovalerophenone synthase activity
description: "Catalysis of the reaction: isovaleryl-CoA + 3 malonyl-CoA = 4 CoASH + 3 CO2 + 3-methyl-1-(2,4,6-trihydroxyphenyl)butan-1-one."