› 1squ

X-ray diffraction
2.4Å resolution

Structural Genomics, Crystal structure of the CheX protein from Thermotoga maritima

Released:
DOI: 10.2210/pdb1squ/pdb
PDB entry 1squ coloured by chain, front view.
PDB entry 1squ coloured by chain, side view.
PDB entry 1squ coloured by chain, top view.
Source organism: Thermotoga maritima
Entry authors: Zhang R, Savchenko A, Edwards A, Joachimiak A, Midwest Center for Structural Genomics (MCSG)

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-194838 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
CheY-P phosphatase CheX Chains: A, B
Molecule details ›
Chains: A, B
Length: 155 amino acids
Theoretical weight: 16.47 KDa
Source organism: Thermotoga maritima
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9X1V3 (Residues: 1-155; Coverage: 100%)
Gene names: TM_1618, cheX
Sequence domains: CheC-like family
Structure domains: CheC-like

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: P212121
Unit cell:
a: 55.241Å b: 73.031Å c: 78.341Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.239 0.239 0.32
Expression system: Escherichia coli BL21(DE3)

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