› 3lkb

X-ray diffraction
2.4Å resolution

Crystal structure of a branched chain amino acid ABC transporter from Thermus thermophilus with bound valine

Released:
DOI: 10.2210/pdb3lkb/pdb
PDB entry 3lkb coloured by chain, front view.
PDB entry 3lkb coloured by chain, side view.
PDB entry 3lkb coloured by chain, top view.
Source organism: Thermus thermophilus HB8
Entry authors: Agarwal R, Burley SK, Swaminathan S, New York SGX Research Center for Structural Genomics (NYSGXRC)

Function and Biology Details

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

Structure analysis Details

Assemblies composition:
homo dimer
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-178130 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Leucine-binding protein domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 392 amino acids
Theoretical weight: 43.29 KDa
Source organism: Thermus thermophilus HB8
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q5SL42 (Residues: 25-406; Coverage: 94%)
Gene name: TTHA0451
Sequence domains: Periplasmic binding protein
Structure domains: Rossmann fold

Ligands and Environments

3 bound ligands:
Ligand VAL 2 x VAL
Ligand IPA 2 x IPA
Ligand NA 2 x NA
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: P212121
Unit cell:
a: 76.708Å b: 83.176Å c: 122.002Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.18 0.174 0.236
Expression system: Escherichia coli BL21(DE3)

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