N(4)-aminopropylspermidine + S-adenosyl 3-(methylsulfanyl)propylamine <=> N(4)-bis(aminopropyl)spermidine + S-methyl-5'-thioadenosine + H(+)
n(4)-aminopropylspermidine + s-adenosyl 3-(methylsulfanyl)propylamine <=> n(4)-bis(aminopropyl)spermidine + s-methyl-5'-thioadenosine + h(+)
N(4)-aminopropylspermidine + S-adenosyl 3-(methylsulfanyl)propylamine <=> N(4)-bis(aminopropyl)spermidine + S-methyl-5'-thioadenosine + H(+)
n(4)-aminopropylspermidine + s-adenosyl 3-(methylsulfanyl)propylamine <=> n(4)-bis(aminopropyl)spermidine + s-methyl-5'-thioadenosine + h(+)