CATH Classification

Domain Context

CATH Clusters

Superfamily 3.10.450.50
Functional Family

Enzyme Information

5.3.3.1
Steroid Delta-isomerase.
based on mapping to UniProt P07445
A 3-oxo-Delta(5)-steroid = a 3-oxo-Delta(4)-steroid.

UniProtKB Entries (1)

P07445
SDIS_PSEPU
Pseudomonas putida
Steroid Delta-isomerase

PDB Structure

PDB 1CQS
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Asp-99 donates a hydrogen bond not to Tyr-14 but to the steroid directly in the catalytic mechanism of Delta 5-3-ketosteroid isomerase from Pseudomonas putida biotype B
Choi, G., Ha, N.C., Kim, S.W., Kim, D.H., Park, S., Oh, B.H., Choi, K.Y.
Biochemistry