aculene B + holo-[peptidyl-carrier protein] => aculene D + L-prolyl-[peptidyl-carrier protein]
aculene b + holo-[peptidyl-carrier protein] => aculene d + l-prolyl-[peptidyl-carrier protein]
aculene B + holo-[peptidyl-carrier protein] => aculene D + L-prolyl-[peptidyl-carrier protein]
aculene b + holo-[peptidyl-carrier protein] => aculene d + l-prolyl-[peptidyl-carrier protein]