X-ray diffraction
2.07Å resolution

The structure of the Escherichia coli murein tripeptide binding protein MppA


Function and Biology Details

Structure analysis Details

Assemblies composition:
monomeric (preferred)
homo hexamer
Entry contents:
1 distinct polypeptide molecule
Periplasmic murein peptide-binding protein Chain: A
Molecule details ›
Chain: A
Length: 519 amino acids
Theoretical weight: 58.04 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21
  • Canonical: P77348 (Residues: 23-537; Coverage: 100%)
Gene names: JW1322, b1329, mppA, ynaH
Sequence domains: Bacterial extracellular solute-binding proteins, family 5 Middle
Structure domains:

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-4
Spacegroup: P6
Unit cell:
a: 165.074Å b: 165.074Å c: 38.167Å
α: 90° β: 90° γ: 120°
R R work R free
0.174 0.172 0.218
Expression system: Escherichia coli BL21