a very-long-chain acyl-CoA + malonyl-CoA + H(+) = a very-long-chain 3-oxoacyl-CoA + CO2 + CoA
a very-long-chain acyl-coa + malonyl-coa + h(+) = a very-long-chain 3-oxoacyl-coa + co2 + coa
"very-long-chain 3-ketoacyl-CoA synthase"
"very-long-chain 3-ketoacyl-coa synthase"