N-hydroxyputrescine + acetyl-CoA = N(1)-acetyl-N(1)-hydroxyputrescine + CoA
n-hydroxyputrescine + acetyl-coa = n(1)-acetyl-n(1)-hydroxyputrescine + coa
N-hydroxyputrescine + acetyl-CoA = N(1)-acetyl-N(1)-hydroxyputrescine + CoA
n-hydroxyputrescine + acetyl-coa = n(1)-acetyl-n(1)-hydroxyputrescine + coa