4ozz

X-ray diffraction
2.9Å resolution

Crystal Structure of the periplasmic alginate epimerase AlgG T265N T268M double mutant

Released:
Entry authors: Howell PL, Wolfram F, Robinson H

Function and Biology Details

Reaction catalysed:
(Mannuronan)-beta-D-mannuronate = (alginate)-alpha-L-guluronate
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assemblies composition:
monomeric (preferred)
homo dimer
PDBe Complex ID:
PDB-CPX-183429 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Mannuronan C5-epimerase Chain: A
Molecule details ›
Chain: A
Length: 424 amino acids
Theoretical weight: 47.58 KDa
Source organism: Pseudomonas syringae pv. tomato str. DC3000
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q887Q3 (Residues: 69-492; Coverage: 85%)
Gene names: PSPTO_1238, algG
Sequence domains: Right handed beta helix region
Structure domains: Single-stranded right-handed beta-helix, Pectin lyase-like

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: P3221
Unit cell:
a: 125.032Å b: 125.032Å c: 98.447Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.174 0.168 0.217
Expression system: Escherichia coli BL21(DE3)