3GAF | pdb_00003gaf

2.2A Crystal Structure of 7-Alpha-Hydroxysteroid Dehydrogenase from Brucella Melitensis

• PDB DOI: https://doi.org/10.2210/pdb3GAF/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Brucella abortus 2308
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-02-17 Released: 2009-03-17 
• Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 
  0.244 (Depositor), 0.242 (DCC) 
• R-Value Work: 
  0.196 (Depositor), 0.195 (DCC) 
• R-Value Observed: 
  0.199 (Depositor) 

Starting Model: experimental

Literature

2.2A Crystal Structure of 7-Alpha-Hydroxysteroid Dehydrogenase from Brucella Melitensis

Seattle Structural Genomics Center for Infectious Disease (SSGCID)

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 210.71 kDa 
• Atom Count: 14,131 
• Modeled Residue Count: 1,956 
• Deposited Residue Count: 2,048 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
7-ALPHA-HYDROXYSTEROID DEHYDROGENASE	A, B, C, D, E, F, G, H	256	Brucella abortus 2308	Mutation(s): 0  Gene Names: BMEI0406 EC: 1.1.1.159
UniProt
Find proteins for Q8YIN7 (Brucella melitensis biotype 1 (strain ATCC 23456 / CCUG 17765 / NCTC 10094 / 16M)) Explore Q8YIN7  Go to UniProtKB:  Q8YIN7

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free:  0.244 (Depositor), 0.242 (DCC) 
• R-Value Work:  0.196 (Depositor), 0.195 (DCC) 
• R-Value Observed: 0.199 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 75.32	α = 90
b = 134.777	β = 109.52
c = 105.269	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-03-17 
Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

Revision History  

• Version 1.0: 2009-03-17
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-01
  Changes: Refinement description
• Version 1.3: 2018-04-04
  Changes: Data collection
• Version 1.4: 2023-09-06
  Changes: Data collection, Database references, Refinement description
• Version 1.5: 2025-10-22
  Changes: Database references, Structure summary