› 1buq

Solution NMR

SOLUTION STRUCTURE OF DELTA-5-3-KETOSTEROID ISOMERASE COMPLEXED WITH THE STEROID 19-NORTESTOSTERONE-HEMISUCCINATE

Released:
DOI: 10.2210/pdb1buq/pdb
PDB entry 1buq coloured by chain, ensemble of 15 models, front view.
PDB entry 1buq coloured by chain, ensemble of 15 models, side view.
PDB entry 1buq coloured by chain, ensemble of 15 models, top view.
Source organism: Comamonas testosteroni
Primary publication:
Solution structure of Delta 5-3-ketosteroid isomerase complexed with the steroid 19-nortestosterone hemisuccinate.
Massiah MA, Abeygunawardana C, Gittis AG, Mildvan AS
Biochemistry 37 14701-12 (1998)
PMID: 9778345

Function and Biology Details

Reaction catalysed: 
A 3-oxo-Delta(5)-steroid = a 3-oxo-Delta(4)-steroid
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-133706 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Steroid Delta-isomerase Chains: A, B
Molecule details ›
Chains: A, B
Length: 125 amino acids
Theoretical weight: 13.38 KDa
Source organism: Comamonas testosteroni
Expression system: Escherichia coli
UniProt:
  • Canonical: P00947 (Residues: 1-125; Coverage: 100%)
Gene name: ksi
Sequence domains: Nuclear transport factor 2 (NTF2) domain
Structure domains: Nuclear Transport Factor 2; Chain: A,

Ligands and Environments

1 bound ligand:
Ligand NTH 2 x NTH
No modified residues

Experiments and Validation Details

Entry percentile scores
Refinement method: DISTANCE GEOMETRY, SIMULATED ANNEALING AND REFINEMENT CALCULATIONS
Expression system: Escherichia coli

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Citations

1 review citation

High-precision measurement of hydrogen bond lengths in proteins by nuclear magnetic resonance methods.
Harris et al. (1999)
12 other articles

2 mentions without citation

Anesthetic interaction with ketosteroid isomerase: insights from molecular dynamics simulations.
Yonkunas et al. (2005)
1 more