putrescine + acetyl-CoA = N-acetylputrescine + CoA + H(+)
putrescine + acetyl-coa = n-acetylputrescine + coa + h(+)
putrescine + acetyl-CoA = N-acetylputrescine + CoA + H(+)
putrescine + acetyl-coa = n-acetylputrescine + coa + h(+)