2QHK | pdb_00002qhk

Crystal structure of methyl-accepting chemotaxis protein from Vibrio parahaemolyticus RIMD 2210633

• PDB DOI: https://doi.org/10.2210/pdb2QHK/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Vibrio parahaemolyticus RIMD 2210633
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2007-07-02 Released: 2007-08-21 
• Deposition Author(s): Zhang, R., Li, H., Clancy, S., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.91 Å
• R-Value Free: 
  0.213 (Depositor), 0.203 (DCC) 
• R-Value Work: 
  0.172 (Depositor), 0.172 (DCC) 
• R-Value Observed: 
  0.174 (Depositor) 

Re-refinement Note

A newer entry is available that reflects an alternative modeling of the original data: 4EXO

Literature

The crystal structure of the methyl-accepting chemotaxis protein from Vibrio parahaemolyticus RIMD 2210633.

Zhang, R., Li, H., 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 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 20.08 kDa 
• Atom Count: 1,442 
• Modeled Residue Count: 148 
• Deposited Residue Count: 174 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Methyl-accepting chemotaxis protein	A	174	Vibrio parahaemolyticus RIMD 2210633	Mutation(s): 5  Gene Names: GI:28896957, VP0183
UniProt
Find proteins for Q87T87 (Vibrio parahaemolyticus serotype O3:K6 (strain RIMD 2210633)) Explore Q87T87  Go to UniProtKB:  Q87T87

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	B [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

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: 1.91 Å
• R-Value Free:  0.213 (Depositor), 0.203 (DCC) 
• R-Value Work:  0.172 (Depositor), 0.172 (DCC) 
• R-Value Observed: 0.174 (Depositor) 

Space Group: I 4 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 112.268	α = 90
b = 112.268	β = 90
c = 62.731	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-08-21 
Deposition Author(s): Zhang, R., Li, H., Clancy, S., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2007-08-21
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Source and taxonomy, Version format compliance
• Version 1.2: 2024-10-30
  Changes: Data collection, Database references, Derived calculations, Structure summary