› 3g67

X-ray diffraction
2.17Å resolution

Crystal Structure of a Soluble Chemoreceptor from Thermotoga maritima

Released:
DOI: 10.2210/pdb3g67/pdb
PDB entry 3g67 coloured by chain, front view.
PDB entry 3g67 coloured by chain, side view.
PDB entry 3g67 coloured by chain, top view.
Source organism: Thermotoga maritima
Primary publication:
The structure of a soluble chemoreceptor suggests a mechanism for propagating conformational signals.
Pollard AM, Bilwes AM, Crane BR
Biochemistry 48 1936-44 (2009)
PMID: 19149470

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-181496 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Methyl-accepting transducer domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 213 amino acids
Theoretical weight: 24.13 KDa
Source organism: Thermotoga maritima
Expression system: Escherichia coli
UniProt:
  • Canonical: Q7DFA3 (Residues: 41-253; Coverage: 77%)
Gene name: TM_0014
Sequence domains: Methyl-accepting chemotaxis protein (MCP) signalling domain
Structure domains: Methyl-accepting chemotaxis protein

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU, CHESS BEAMLINE F2
Spacegroup: P21
Unit cell:
a: 68.712Å b: 25.747Å c: 119.61Å
α: 90° β: 93.81° γ: 90°
R-values:
R R work R free
0.242 0.242 0.278
Expression system: Escherichia coli

Quick links

Citations

8 review citations

Signaling and sensory adaptation in Escherichia coli chemoreceptors: 2015 update.
Parkinson et al. (2015)
7 more

6 mentions without citation

Bacterial chemoreceptor arrays are hexagonally packed trimers of receptor dimers networked by rings of kinase and coupling proteins.
Briegel et al. (2012)
5 more