Medical Definition of Spermine synthase
1.
An enzyme that catalyses the transfer of the propylamine moiety from 5'-deoxy-5'-s-(3-methylthiopropylamine)sulfonium adenosine to spermidine in the biosynthesis of spermine. It has an acidic isoelectric point at pH 5.0.
Chemical name: S-Adenosylmethioninamine:spermidine 3-aminopropyltransferase
Registry number: EC 2.5.1.22
(12 Dec 1998)
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