2F2E

Crystal Structure of PA1607, a Putative Transcription Factor

• PDB DOI:  https://doi.org/10.2210/pdb2F2E/pdb

• Classification: DNA BINDING PROTEIN/STRUCTURAL GENOMICS
• Organism(s): Pseudomonas aeruginosa
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2005-11-16 Released: 2006-03-14 
• Deposition Author(s): Sieminska, E.A., Xu, X., Zheng, H., Lunin, V., Cuff, M., Joachimiak, A., Edwards, A., Savchenko, A., Sanders, D.A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.251 
• R-Value Work: 0.177 
• R-Value Observed: 0.181 

Literature

The X-ray crystal structure of PA1607 from Pseudomonas aureginosa at 1.9 A resolution--a putative transcription factor.

Sieminska, E.A., Xu, X., Savchenko, A., Sanders, D.A.

(2007) Protein Sci 16: 543-549

• PubMed: 17322537 
• DOI: https://doi.org/10.1110/ps.062668207
• Primary Citation of Related Structures:  
  2F2E


• PubMed Abstract: 
  

The structure of the PA1607 protein from Pseudomonas aureginosa was determined at 1.85 A resolution using the Se-Met multiwavelength anomalous diffraction (MAD) technique. PA1607 forms a dimer and adopts a winged-helix motif similar to the MarR family of transcription regulators, though it has an unusual dimerization profile. The DNA-binding regions and a putative metal-binding site are not conserved in PA1607.

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Organizational Affiliation: 

Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5C9, Canada.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 2 generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 3 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 33.31 kDa 
• Atom Count: 2,576 
• Modelled Residue Count: 282 
• Deposited Residue Count: 292 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PA1607	A, B	146	Pseudomonas aeruginosa	Mutation(s): 3  Gene Names: PA1607
UniProt
Find proteins for Q9I3B4 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Explore Q9I3B4  Go to UniProtKB:  Q9I3B4

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GLC	E [auth B]	alpha-D-glucopyranose C6 H12 O6 WQZGKKKJIJFFOK-DVKNGEFBSA-N
SO4	C [auth A], D [auth A], F [auth B], G [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.251 
• R-Value Work: 0.177 
• R-Value Observed: 0.181 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.884	α = 90
b = 78.865	β = 91.64
c = 78.941	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-03-14 
Deposition Author(s): Sieminska, E.A., Xu, X., Zheng, H., Lunin, V., Cuff, M., Joachimiak, A., Edwards, A., Savchenko, A., Sanders, D.A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2006-03-14
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Data collection, Database references, Derived calculations, Structure summary