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Substance Name: Spermine Synthase
RN: 74812-43-4


  • An enzyme that catalyzes 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. EC
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Names and Synonyms

Name of Substance

  • Spermine Synthase

MeSH Heading

  • Spermine Synthase


  • Aminopropyltransferase, Spermidine
  • Spermidine Aminopropyltransferase
  • Spermine Synthetase
  • Synthase, Spermine
  • Synthetase, Spermine

Systematic Name

  • S-Adenosylmethioninamine:spermidine 3-aminopropyltransferase

Registry Numbers

CAS Registry Number

  • 74812-43-4

System Generated Number

  • 0074812434