› 1dpe

X-ray diffraction
2Å resolution

DIPEPTIDE-BINDING PROTEIN

Released:
DOI: 10.2210/pdb1dpe/pdb
PDB entry 1dpe coloured by chain, front view.
PDB entry 1dpe coloured by chain, side view.
PDB entry 1dpe coloured by chain, top view.
Source organism: Escherichia coli K-12
Primary publication:
2 A resolution structure of DppA, a periplasmic dipeptide transport/chemosensory receptor.
Nickitenko AV, Trakhanov S, Quiocho FA
Biochemistry 34 16585-95 (1995)
PMID: 8527431

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-150078 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Dipeptide-binding protein Chain: A
Molecule details ›
Chain: A
Length: 507 amino acids
Theoretical weight: 57.5 KDa
Source organism: Escherichia coli K-12
UniProt:
  • Canonical: P23847 (Residues: 29-535; Coverage: 100%)
Gene names: JW3513, b3544, dppA
Sequence domains: Bacterial extracellular solute-binding proteins, family 5 Middle
Structure domains:

Ligands and Environments

1 bound ligand:
Ligand CD 5 x CD
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X4A
Spacegroup: P212121
Unit cell:
a: 118.27Å b: 79.78Å c: 62.97Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.169 0.169 not available

Quick links

Citations

12 review citations

Atomic structure and specificity of bacterial periplasmic receptors for active transport and chemotaxis: variation of common themes.
Quiocho et al. (1996)
11 more

12 mentions without citation

The role of solute binding proteins in signal transduction.
Matilla et al. (2021)
11 more