ISDA

Deposition Date 2001-12-27

Release Date 2003-01-23

Last Version Date 2023-12-13

Entry Detail

PDB ID:

1GS3

Keywords:

ISOMERASE

Title:

High resolution crystal structure of PI delta-5-3-Ketosteroid Isomerase mutants Y30F/Y55F/Y115F/D38N (Y32F/Y57F/Y119F/D40N, PI numbering)complexed with equilenin at 2.1 A resolution

Biological Source:

Source Organism:

PSEUDOMONAS PUTIDA (Taxon ID: 303)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.10 Å

R-Value Free:

0.27

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

C 2 2 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:STEROID DELTA-ISOMERASE
Gene (Uniprot):ksi
Mutations:YES
Chain IDs:A
Chain Length:131
Number of Molecules:1
Biological Source:PSEUDOMONAS PUTIDA

UniProt ID:P07445 Pfam ID:PF12680 EC:5.3.3.1

Ligand Molecules

EQU

Primary Citation

Contribution of a Low-Barrier Hydrogen Bond to Catalysis by Delta-5-3-Ketosteroid Isomerase is not Extremely High Compared to that of an Ordinary Hydrogen Bond. Low-Barrier Hydrogen Bond of Pi Ksi

Choi, G, Shin, S, Yun, S.-G, Jang, D.S, Nam, G.H, Hong, B.-H, Lee, H.-C, Oh, B.-H, Choi, K.Y.Show

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Primary Citation of related structures