› 1usi

X-ray diffraction
1.8Å resolution

L-leucine-binding protein with phenylalanine bound

Released:
DOI: 10.2210/pdb1usi/pdb
PDB entry 1usi coloured by chain, front view.
PDB entry 1usi coloured by chain, side view.
PDB entry 1usi coloured by chain, top view.
Source organism: Escherichia coli
Primary publication:
X-ray structures of the leucine-binding protein illustrate conformational changes and the basis of ligand specificity.
Magnusson U, Salopek-Sondi B, Luck LA, Mowbray SL
J Biol Chem 279 8747-52 (2004)
PMID: 14672931

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-138191 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Leucine-specific-binding protein Chains: A, C
Molecule details ›
Chains: A, C
Length: 346 amino acids
Theoretical weight: 37.08 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P04816 (Residues: 24-369; Coverage: 100%)
Gene names: JW3423, b3458, livK
Sequence domains: Periplasmic binding protein
Structure domains: Rossmann fold

Ligands and Environments

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

Experiments and Validation Details

Entry percentile scores
X-ray source: MAX II BEAMLINE I711
Spacegroup: P21
Unit cell:
a: 68.236Å b: 78.143Å c: 70.183Å
α: 90° β: 102.82° γ: 90°
R-values:
R R work R free
0.191 0.189 0.222
Expression system: Escherichia coli BL21

Quick links

Citations

3 review citations

Selective substrate uptake: The role of ATP-binding cassette (ABC) importers in pathogenesis.
Tanaka et al. (2018)
2 more

14 mentions without citation

Huanglongbing Pandemic: Current Challenges and Emerging Management Strategies.
Ghosh et al. (2022)
13 more