Spermidine Synthase
Synonyms
Aminopropyltransferase
Aminopropyltransferase, Putrescine
Propylamine Transferase
Putrescine Aminopropyltransferase
S-Adenosylmethioninamine:putrescine 3-aminopropyltransferase
Spermidine Synthetase
Synthase, Spermidine
Synthetase, Spermidine
Transferase, Propylamine
An enzyme that catalyzes the transfer of the propylamine moiety from 5'-deoxy-5'-S-(3-methylthiopropylamine)sulfonium adenosine to putrescine in the biosynthesis of spermidine. The enzyme has a molecular weight of approximately 73,000 kDa and is composed of two subunits of equal size.