CATH Classification

Domain Context

CATH Clusters

Superfamily Vaccinia Virus protein VP39
Functional Family Putative spermidine synthase 1

Enzyme Information

2.5.1.16
Spermidine synthase.
based on mapping to UniProt G5EFG3
S-adenosyl 3-(methylthio)propylamine + putrescine = 5'-S-methyl- 5'-thioadenosine + spermidine.
-!- The enzymes from the plant Glycine max and from mammalia are highly specific for putrescine as the amine acceptor. -!- The enzymes from the bacteria Escherichia coli and Thermotoga maritima prefer putrescine but are more tolerant toward other amine acceptors, such as spermidine and cadaverine. -!- Cf. EC 2.5.1.22 and EC 2.5.1.23.

UniProtKB Entries (1)

G5EFG3
G5EFG3_CAEEL
Caenorhabditis elegans
SPermiDine Synthase

PDB Structure

PDB 2B2C
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Cloning, expression, characterisation and three-dimensional structure determination of Caenorhabditis elegans spermidine synthase
Dufe, V.T., Luersen, K., Eschbach, M.L., Haider, N., Karlberg, T., Walter, R.D., Al-Karadaghi, S.
FEBS LETT.