› 4r1q

X-ray diffraction
2.25Å resolution

Crystal Structure of Thermophilic Geobacillus kaustophilus L-Arabinose isomerase in complex with L-arabitol

Released:
DOI: 10.2210/pdb4r1q/pdb
PDB entry 4r1q coloured by chain, front view.
PDB entry 4r1q coloured by chain, side view.
PDB entry 4r1q coloured by chain, top view.
Source organism: Geobacillus kaustophilus HTA426
Entry authors: Choi JM, Lee YJ, Lee DW, Lee SH

Function and Biology Details

Reaction catalysed: 
Beta-L-arabinose = L-ribulose
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo hexamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-561649 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
L-arabinose isomerase Chains: A, B, C, D, E, F
Molecule details ›
Chains: A, B, C, D, E, F
Length: 497 amino acids
Theoretical weight: 56.3 KDa
Source organism: Geobacillus kaustophilus HTA426
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q5KYP7 (Residues: 1-496; Coverage: 100%)
Gene names: GK1904, araA
Sequence domains:
Structure domains: Rossmann fold

Ligands and Environments

2 bound ligands:
Ligand SST 6 x SST
Ligand MN 6 x MN
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PAL/PLS BEAMLINE 5C (4A)
Spacegroup: P212121
Unit cell:
a: 118.514Å b: 146.263Å c: 215.677Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.156 0.154 0.201
Expression system: Escherichia coli BL21(DE3)

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