Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov. Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

NLM Logo

Spermine Synthase MeSH Descriptor Data 2025


MeSH Heading
Spermine Synthase
Tree Number(s)
D08.811.913.225.912
Unique ID
D013097
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D013097
Annotation
do not confuse with SPERMIDINE SYNTHASE
Scope Note
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 2.5.1.22.
Entry Term(s)
Spermidine Aminopropyltransferase
Spermine Synthetase
Registry Numbers
EC 2.5.1.22
Related Numbers
74812-43-4
CAS Type 1 Name
S-Adenosylmethioninamine:spermidine 3-aminopropyltransferase
Previous Indexing
Propylamines (1972-1974)
Spermine (1972-1974)
Transferases (1972-1974)
Public MeSH Note
91; was see under TRANSFERASES 1975-90
History Note
91(75); was see under TRANSFERASES 1975-90
Date Established
1991/01/01
Date of Entry
1974/11/19
Revision Date
2003/07/09
Spermine Synthase Preferred
page delivered in 0.15s