3-oxo-(13Z)-eicosenoyl-CoA + CO2 + CoA => (11Z)-octadecenoyl-CoA + malonyl-CoA + H(+)
3-oxo-(13z)-eicosenoyl-coa + co2 + coa => (11z)-octadecenoyl-coa + malonyl-coa + h(+)
3-oxo-(13Z)-eicosenoyl-CoA + CO2 + CoA => (11Z)-octadecenoyl-CoA + malonyl-CoA + H(+)
3-oxo-(13z)-eicosenoyl-coa + co2 + coa => (11z)-octadecenoyl-coa + malonyl-coa + h(+)