spermidine + citrate + ATP = N(8)-citryl-spermidine + AMP + diphosphate + H(+)
spermidine + citrate + atp = n(8)-citryl-spermidine + amp + diphosphate + h(+)
spermidine + citrate + ATP = N(8)-citryl-spermidine + AMP + diphosphate + H(+)
spermidine + citrate + atp = n(8)-citryl-spermidine + amp + diphosphate + h(+)