› 3atp

X-ray diffraction
2.5Å resolution

Structure of the ligand binding domain of the bacterial serine chemoreceptor Tsr with ligand

Released:
DOI: 10.2210/pdb3atp/pdb
PDB entry 3atp coloured by chain, front view.
PDB entry 3atp coloured by chain, side view.
PDB entry 3atp coloured by chain, top view.
Source organism: Escherichia coli str. K-12 substr. W3110
Primary publication:
Ligand specificity determined by differentially arranged common ligand-binding residues in bacterial amino acid chemoreceptors Tsr and Tar.
Tajima H, Imada K, Sakuma M, Hattori F, Nara T, Kamo N, Homma M, Kawagishi I
J Biol Chem 286 42200-42210 (2011)
PMID: 21979954

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-136409 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Methyl-accepting chemotaxis protein I Chains: A, B
Molecule details ›
Chains: A, B
Length: 170 amino acids
Theoretical weight: 19.02 KDa
Source organism: Escherichia coli str. K-12 substr. W3110
Expression system: Escherichia coli
UniProt:
  • Canonical: P02942 (Residues: 25-190; Coverage: 30%)
Gene names: JW4318, b4355, cheD, tsr
Sequence domains: Tar ligand binding domain homologue
Structure domains: Aspartate receptor, ligand-binding domain

Ligands and Environments

1 bound ligand:
Ligand SER 2 x SER
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL41XU
Spacegroup: P21212
Unit cell:
a: 51.972Å b: 133.737Å c: 39.571Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.258 0.258 0.28
Expression system: Escherichia coli

Quick links

Citations

3 review citations

Bacterial chemoreceptors and chemoeffectors.
Bi et al. (2015)
2 more

11 mentions without citation

Sensory Repertoire of Bacterial Chemoreceptors.
Ortega et al. (2017)
10 more