3CO5 | pdb_00003co5

Crystal structure of sigma-54 interaction domain of putative transcriptional response regulator from Neisseria gonorrhoeae

• PDB DOI: https://doi.org/10.2210/pdb3CO5/pdb

• Classification: TRANSCRIPTION REGULATOR
• Organism(s): Neisseria gonorrhoeae FA 1090
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2008-03-27 Released: 2008-04-08 
• Deposition Author(s): Osipiuk, J., Hendricks, R., Bigelow, L., Clancy, S., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 
  0.241 (Depositor), 0.252 (DCC) 
• R-Value Work: 
  0.205 (Depositor), 0.208 (DCC) 
• R-Value Observed: 
  0.206 (Depositor) 

Literature

X-ray crystal structure of Sigma-54 interaction domain of putative transcriptional response regulator from Neisseria gonorrhoeae.

Osipiuk, J., Hendricks, R., Bigelow, L., Clancy, S., Joachimiak, A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 31.45 kDa 
• Atom Count: 2,064 
• Modeled Residue Count: 266 
• Deposited Residue Count: 286 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative two-component system transcriptional response regulator	A, B	143	Neisseria gonorrhoeae FA 1090	Mutation(s): 0  Gene Names: NGO1866
UniProt
Find proteins for Q5F5Q1 (Neisseria gonorrhoeae (strain ATCC 700825 / FA 1090)) Explore Q5F5Q1  Go to UniProtKB:  Q5F5Q1

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BME	C [auth A], D [auth B]	BETA-MERCAPTOETHANOL C2 H6 O S DGVVWUTYPXICAM-UHFFFAOYSA-N

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: 2.40 Å
• R-Value Free:  0.241 (Depositor), 0.252 (DCC) 
• R-Value Work:  0.205 (Depositor), 0.208 (DCC) 
• R-Value Observed: 0.206 (Depositor) 

Space Group: P 3₂

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.963	α = 90
b = 67.963	β = 90
c = 64.93	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
HKL-3000	data reduction
SHELXD	phasing
MLPHARE	phasing
DM	phasing
SOLVE	phasing
RESOLVE	phasing
HKL-3000	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-04-08 
Deposition Author(s): Osipiuk, J., Hendricks, R., Bigelow, L., Clancy, S., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2008-04-08
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Source and taxonomy, Version format compliance
• Version 1.2: 2017-10-25
  Changes: Refinement description
• Version 1.3: 2025-03-26
  Changes: Data collection, Database references, Derived calculations, Structure summary