preferred_name: S-adenosyl 3-(methylsulfanyl)propylamine + spermidine = spermine + S-methyl-5'-thioadenosine + H(+)
preferred_name_lc: s-adenosyl 3-(methylsulfanyl)propylamine + spermidine = spermine + s-methyl-5'-thioadenosine + h(+)
label: "spermidine aminopropyltransferase"
label_lc: "spermidine aminopropyltransferase"