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2.5.1.16: spermidine synthase

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

Word Map on EC 2.5.1.16

Reaction

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

Synonyms

aminopropyltransferase, aminopropyltransferase spermidine synthase, AtSPDS1, AtSPDS2, MdSPDS1, PAPT, PgSPD, putrescine aminopropyltransferase, Spd synthase, SPDS, SPDS2, SPDSYN, spe-sdh, spe3, SpeE, spermidine synthase, spermidine synthase 1, spermidine synthetase, Spm synthase, SpSyn, Synpcc7942_0628, synthase, spermidine

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)
                2.5.1.16 spermidine synthase

Substrates Products

Substrates Products on EC 2.5.1.16 - spermidine synthase

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SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
5'-methyl,5'-deoxymethylthioadenosine + putrescine
?
show the reaction diagram
putrescine + (methyl-14C)-S-adenosylmethioninamine
spermidine + ?
show the reaction diagram
-
-
-
-
?
putrescine + S-5'-deoxyadenosyl-(5')-3-methylthiopropylamine
spermidine + ?
show the reaction diagram
-
-
-
-
?
putrescine + S-adenosylmethioninamine
spermidine + 5'-methylthioadenosine
show the reaction diagram
S-5'-deoxyadenosyl-5'-3-butylthiopropylamine + 1,4-diaminobutane
?
show the reaction diagram
-
-
-
-
?
S-5'-deoxyadenosyl-5'-3-ethylthiopropylamine + 1,4-diaminobutane
?
show the reaction diagram
S-5'-deoxyadenosyl-5'-3-propylthiopropylamine + 1,4-diaminobutane
?
show the reaction diagram
S-adenosyl 3-(methylsulfanyl)propylamine + putrescine
S-methyl-5'-thioadenosine + spermidine
show the reaction diagram
S-adenosyl 3-(methylthio)propylamine + putrescine
S-methyl-5'-thioadenosine + spermidine
show the reaction diagram
S-adenosyl-(5')-3-methylthio-1-propylamine + 1,3-diaminopropane
?
show the reaction diagram
-
weak substrate
-
-
?
S-adenosyl-(5')-3-methylthio-1-propylamine + 1,4-diamino-2-butene
5'-methylthioadenosine + N-3-aminopropyl-1,4-diamino-2-butene
show the reaction diagram
-
-
in a lower yield than with the natural combination
?
S-adenosyl-(5')-3-methylthio-1-propylamine + 1,4-diamino-2-butene
?
show the reaction diagram
-
-
-
-
?
S-adenosyl-(5')-3-methylthio-1-propylamine + 1,4-diamino-2-butene
N-3-aminopropyl-1,4-diamino-2-butene + 5'-methylthioadenosine
show the reaction diagram
-
-
forms with a low yield
?
S-adenosyl-(5')-3-methylthio-1-propylamine + 1,4-diaminobutane
5'-methylthioadenosine + spermidine
show the reaction diagram
S-adenosyl-(5')-3-methylthio-1-propylamine + 1,4-diaminobutane
?
show the reaction diagram
-
-
-
-
?
S-adenosyl-(5')-3-methylthio-1-propylamine + 1,6-diaminohexane
?
show the reaction diagram
S-adenosyl-(5')-3-methylthio-1-propylamine + 1-methyl-1,4-butanediamine
?
show the reaction diagram
-
-
-
-
?
S-adenosyl-(5')-3-methylthio-1-propylamine + 2,2-difluoro-1,4-diaminobutane
?
show the reaction diagram
-
-
-
-
?
S-adenosyl-(5')-3-methylthio-1-propylamine + 2-chloro-1,4-diaminobutane
?
show the reaction diagram
-
-
-
-
?
S-adenosyl-(5')-3-methylthio-1-propylamine + 2-hydroxy-1,4 butanediamine
?
show the reaction diagram
-
-
-
-
?
S-adenosyl-(5')-3-methylthio-1-propylamine + 2-methyl-1,4-diaminobutane
?
show the reaction diagram
-
-
-
-
?
S-adenosyl-(5')-3-methylthio-1-propylamine + spermidine
5'-methylthioadenosine + spermine
show the reaction diagram
S-adenosyl-(5')-3-methylthiopropylamine + 1,4-diaminobutane
?
show the reaction diagram
-
-
-
-
?
S-adenosyl-3-butylthio-1-propylamine + 1,4-diaminobutane
?
show the reaction diagram
-
prostate enzyme
-
-
?
S-adenosyl-3-carboxymethylthio-1-propylamine + 1,4-diaminobutane
?
show the reaction diagram
-
-
-
-
?
S-adenosyl-3-ethylthio-1-propylamine + 1,4-diaminobutane
?
show the reaction diagram
S-adenosyl-3-methylthio-1-propylamine + 1,3-diaminopentane
?
show the reaction diagram
-
poor substrate
-
-
?
S-adenosyl-3-methylthio-1-propylamine + 1,4-diaminobutane
5'-methylthioadenosine + spermidine
show the reaction diagram
S-adenosyl-3-methylthio-1-propylamine + 1,5-diaminopentane
5'-methylthioadenosine + N-(3-aminopropyl)-1,5-diaminopentane
show the reaction diagram
S-adenosyl-3-propylthio-1-propylamine + 1,4-diaminobutane
?
show the reaction diagram
S-adenosyl-3-thiopropylamine sulfone + 1,4-diaminobutane
?
show the reaction diagram
-
-
-
-
?
S-adenosyl-3-thiopropylamine sulfoxide + 1,4-diaminobutane
?
show the reaction diagram
S-adenosyl-5',1-methyl-3-methylthiopropylamine + 1,4-diaminobutane
?
show the reaction diagram
S-adenosyl-L-ethionine + 1,4-diaminobutane
?
show the reaction diagram
S-adenosyl-L-homocysteine sulfone + 1,4-diaminobutane
?
show the reaction diagram
S-adenosyl-L-methionine + 1,4-diaminobutane
?
show the reaction diagram
S-adenosylmethioninamine + putrescine
5'-methylthioadenosine + spermidine
show the reaction diagram
S-adenosylmethioninamine + putrescine
5'-S-methyl-5'-thioadenosine + spermidine
show the reaction diagram
S-adenosylmethioninamine + putrescine
S-methyl-5'-thioadenosine + spermidine
show the reaction diagram
S-adenosylmethioninamine + putrescine
spermidine + 5'-methylthioadenosine
show the reaction diagram
spermidine + S-adenosylmethioninamine
spermine + 5'-methylthioadenosine
show the reaction diagram
in contrast to mammalian spermidine synthases, spermidine can replace to some extent putrescine as the aminopropyl acceptor
-
-
?
additional information
?
-