4GQM | pdb_00004gqm

Crystal structure of a helix-turn-helix containing hypothetical protein (CT009) from Chlamydia trachomatis in a sub-domain swap conformation

• PDB DOI: https://doi.org/10.2210/pdb4GQM/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Chlamydia trachomatis L2/434/Bu
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2012-08-23 Released: 2013-08-28 
• Deposition Author(s): Kemege, K., Hickey, J., Lovell, S., Battaile, K.P., Hefty, P.S.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.25 Å
• R-Value Free: 
  0.173 (Depositor), 0.179 (DCC) 
• R-Value Work: 
  0.159 (Depositor), 0.172 (DCC) 
• R-Value Observed: 
  0.159 (Depositor) 

Starting Model: in silico

Literature

Crystal structure of a helix-turn-helix containing hypothetical protein (CT009) from Chlamydia trachomatis in a sub-domain swap conformation

Kemege, K., Hickey, J., Lovell, S., Battaile, K.P., Hefty, P.S.

To be published.

Biological Assembly 1  

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

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

Macromolecule Content 

• Total Structure Weight: 13.39 kDa 
• Atom Count: 1,118 
• Modeled Residue Count: 105 
• Deposited Residue Count: 118 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CT009	A	118	Chlamydia trachomatis L2/434/Bu	Mutation(s): 0  Gene Names: CTL0264

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.25 Å
• R-Value Free:  0.173 (Depositor), 0.179 (DCC) 
• R-Value Work:  0.159 (Depositor), 0.172 (DCC) 
• R-Value Observed: 0.159 (Depositor) 

Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 55.171	α = 90
b = 55.171	β = 90
c = 88.12	γ = 90

Software Package:

Software Name	Purpose
SCALA	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
JDirector	data collection
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-08-28 
Deposition Author(s): Kemege, K., Hickey, J., Lovell, S., Battaile, K.P., Hefty, P.S.

Revision History  

• Version 1.0: 2013-08-28
  Type: Initial release
  
• Version 1.1: 2017-11-15
  Changes: Refinement description
• Version 1.2: 2024-02-28
  Changes: Data collection, Database references
• Version 1.3: 2024-04-03
  Changes: Refinement description