2oww

X-ray diffraction
2.2Å resolution

Covalent intermediate in amylomaltase in complex with the acceptor analog 4-deoxyglucose

Released:

Function and Biology Details

Reaction catalysed:
Transfers a segment of a (1->4)-alpha-D-glucan to a new position in an acceptor, which may be glucose or a (1->4)-alpha-D-glucan
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-131491 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
4-alpha-glucanotransferase Chain: A
Molecule details ›
Chain: A
Length: 502 amino acids
Theoretical weight: 57.53 KDa
Source organism: Thermus thermophilus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O87172 (Residues: 1-500; Coverage: 100%)
Gene name: malQ
Sequence domains: 4-alpha-glucanotransferase
Structure domains: Glycosidases

Ligands and Environments

Carbohydrate polymer : NEW Components: GLC, AC1
3 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: ENRAF-NONIUS FR591
Spacegroup: P3121
Unit cell:
a: 92.463Å b: 92.463Å c: 154.172Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.2 0.198 0.24
Expression system: Escherichia coli BL21(DE3)