CATH Classification

Domain Context

CATH Clusters

Superfamily Aldolase class I
Functional Family 2-dehydro-3-deoxy-phosphogluconate/2-dehydro-3-deoxy-6-phosphogalactonate aldolase

Enzyme Information

4.1.2.55
2-dehydro-3-deoxy-phosphogluconate/2-dehydro-3-deoxy-6-phosphogalactonate aldolase.
based on mapping to UniProt Q4JC35
(1) 2-dehydro-3-deoxy-6-phospho-D-gluconate = pyruvate + D-glyceraldehyde 3-phosphate. (2) 2-dehydro-3-deoxy-6-phospho-D-galactonate = pyruvate + D-glyceraldehyde 3-phosphate.
-!- In the archaeon Sulfolobus solfataricus the enzyme is involved in glucose and galactose catabolism via the branched variant of the Entner-Doudoroff pathway. -!- It utilizes 2-dehydro-3-deoxy-6-phosphate-D-gluconate and 2-dehydro- 3-deoxy-6-phosphate-D-galactonate with similar catalytic efficiency. -!- In vitro the enzyme can also catalyze the cleavage of the non- phosphorylated forms 2-dehydro-3-deoxy-D-gluconate and 2-dehydro-3- deoxy-D-galactonate with much lower catalytic efficiency. -!- Cf. EC 4.1.2.21 and EC 4.1.2.14.

UniProtKB Entries (1)

Q4JC35
KDGA_SULAC
Sulfolobus acidocaldarius DSM 639
2-dehydro-3-deoxy-phosphogluconate/2-dehydro-3-deoxy-6-phosphogalactonate aldolase

PDB Structure

PDB 2NUW
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Biochemical and structural exploration of the catalytic capacity of Sulfolobus KDG aldolases
Wolterink-van Loo, S., van Eerde, A., Siemerink, M.A.J., Akerboom, J., Dijkstra, B.W., van der Oost, J.
Biochem.J.
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