spermidine + acetyl-CoA <=> N(1)-acetylspermidine + CoA + H(+)
spermidine + acetyl-coa <=> n(1)-acetylspermidine + coa + h(+)
spermidine + acetyl-CoA <=> N(1)-acetylspermidine + CoA + H(+)
spermidine + acetyl-coa <=> n(1)-acetylspermidine + coa + h(+)