3KHT

Crystal structure of response regulator from Hahella chejuensis

• PDB DOI: https://doi.org/10.2210/pdb3KHT/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Hahella chejuensis KCTC 2396
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-10-30 Released: 2009-11-10 
• Deposition Author(s): Bagaria, A., Burley, S.K., Swaminathan, S., New York SGX Research Center for Structural Genomics (NYSGXRC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.288 
• R-Value Work: 0.224 
• R-Value Observed: 0.227 

Literature

Crystal structure of response regulator from Hahella chejuensis

Bagaria, A., Burley, S.K., Swaminathan, S.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 16.39 kDa 
• Atom Count: 1,108 
• Modelled Residue Count: 132 
• Deposited Residue Count: 144 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Response regulator	A	144	Hahella chejuensis KCTC 2396	Mutation(s): 0  Gene Names: HCH_02875
UniProt
Find proteins for Q2SI73 (Hahella chejuensis (strain KCTC 2396)) Explore Q2SI73  Go to UniProtKB:  Q2SI73

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.288 
• R-Value Work: 0.224 
• R-Value Observed: 0.227 
• Space Group: P 6₅ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.09	α = 90
b = 57.09	β = 90
c = 200.456	γ = 120

Software Package:

Software Name	Purpose
CBASS	data collection
SHARP	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-11-10 
Deposition Author(s): Bagaria, A., Burley, S.K., Swaminathan, S., New York SGX Research Center for Structural Genomics (NYSGXRC)

Revision History  

• Version 1.0: 2009-11-10
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.2: 2021-02-10
  Changes: Database references, Derived calculations, Structure summary
• Version 1.3: 2024-11-20
  Changes: Data collection, Database references, Structure summary