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2.5.1.22: spermine synthase

This is an abbreviated version!
For detailed information about spermine synthase, go to the full flat file.

Word Map on EC 2.5.1.22

Reaction

S-adenosyl 3-(methylsulfanyl)propylamine
+
spermidine
=
S-methyl-5'-thioadenosine
+
spermine

Synonyms

ACL5, aminopropyltransferase, spermidine, OsSPMS1, SMS, spermidine aminopropyltransferase, spermine synthase, spermine synthase 1, spermine synthetase, Spm synthase, SpmS, SPMS1, SpmSyn, synthase, spermine

ECTree

     2 Transferases
         2.5 Transferring alkyl or aryl groups, other than methyl groups
             2.5.1 Transferring alkyl or aryl groups, other than methyl groups (only sub-subclass identified to date)
                2.5.1.22 spermine synthase

Natural Substrates Products

Natural Substrates Products on EC 2.5.1.22 - spermine synthase

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NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
S-adenosyl 3-(methylthio)propylamine + spermidine
S-methyl-5'-thioadenosine + spermine
show the reaction diagram
S-adenosylmethioninamine + spermidine
5'-methylthioadenosine + spermine
show the reaction diagram
S-adenosylmethioninamine + spermidine
5'-methylthioadenosine + spermine + H+
show the reaction diagram
Polyamine sythesis, addition of a second aminopropyl group to the N-10 position of spermidine. The active site with a bound spermidine molecule contains an Asp276 residue, which is in an ideal position to facilitate the deprotonation of the N-10 amino group of spermidine that attacks the C-atom of the aminopropyl group of decarboxylated S-adenosylmethionine
-
-
?
S-adenosylmethioninamine + spermidine
S-methyl-5'-thioadenosine + spermine
show the reaction diagram
additional information
?
-