3QTA

Crystal structure of a CheC-like protein (rrnAC0528) from Haloarcula marismortui ATCC 43049 at 2.00 A resolution

• PDB DOI: https://doi.org/10.2210/pdb3QTA/pdb

• Classification: ATTRACTANT
• Organism(s): Haloarcula marismortui ATCC 43049
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2011-02-22 Released: 2011-04-06 
• Deposition Author(s): Joint Center for Structural Genomics (JCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.202 
• R-Value Work: 0.175 
• R-Value Observed: 0.176 

Literature

Crystal structure of a Hypothetical CheC-like protein (rrnAC0528) from HALOARCULA MARISMORTUI ATCC 43049 at 2.00 A resolution

Joint Center for Structural Genomics (JCSG)

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: 51.39 kDa 
• Atom Count: 3,579 
• Modelled Residue Count: 406 
• Deposited Residue Count: 466 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chemotaxis protein CheC	A, B	233	Haloarcula marismortui ATCC 43049	Mutation(s): 0  Gene Names: cheC1, rrnAC0528
UniProt
Find proteins for Q5V4K4 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809)) Explore Q5V4K4  Go to UniProtKB:  Q5V4K4

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	E [auth A], F [auth A], G [auth A], I [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CA	C [auth A], D [auth A], H [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-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: 2.00 Å
• R-Value Free: 0.202 
• R-Value Work: 0.175 
• R-Value Observed: 0.176 
• Space Group: P 4₁ 2₁ 2
• Diffraction Data: https://doi.org/10.18430/M33QTA

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 89.928	α = 90
b = 89.928	β = 90
c = 148.299	γ = 90

Software Package:

Software Name	Purpose
MolProbity	model building
PDB_EXTRACT	data extraction
SOLVE	phasing
SCALA	data scaling
MOSFLM	data reduction
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-04-06 
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2011-04-06
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2014-12-24
  Changes: Structure summary
• Version 1.3: 2017-11-08
  Changes: Refinement description
• Version 1.4: 2023-02-01
  Changes: Database references, Derived calculations
• Version 1.5: 2024-10-30
  Changes: Data collection, Structure summary