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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

Molecular Weight

Molecular Weight on EC 2.5.1.16 - spermidine synthase

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MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
123000
-
tetrameric enzyme form B, analytical ultracentrifugation
131000
-
gel filtration
158000
-
tetrameric enzyme form B, gel filtration
30590
-
calculated
31851
calculated from sequence
31900
calculated
33000
33252
2 * 36500, 2 * 33823, recombinant His6-tagged enzyme, mass spectrometry, 2 * 33252, His6-tagged enzyme, sequence calculation
33823
2 * 36500, 2 * 33823, recombinant His6-tagged enzyme, mass spectrometry, 2 * 33252, His6-tagged enzyme, sequence calculation
34000 - 35000
35000
35800
-
2 * 35800, SDS-PAGE
36380
x * 36380, sequence calculation
36390
calculated from sequence
36500
2 * 36500, 2 * 33823, recombinant His6-tagged enzyme, mass spectrometry, 2 * 33252, His6-tagged enzyme, sequence calculation
36932
x * 36932, sequence calculation
37000
38000
-
SDS-PAGE, including His-tag of 3 kDA
58000
-
dimeric enzyme form A, analytical ultracentrifugation
60000
62000
650000 - 750000
-
gel filtration
67000
gel filtration
70000
70600
-
W strain, sedimentation equilibrium centrifugation
72000
-
W strain
73000
74000