2vq4

X-ray diffraction
1.25Å resolution

Carbohydrate-binding of the starch binding domain of Rhizopus oryzae glucoamylase in complex with beta-cyclodextrin and maltoheptaose

Released:

Function and Biology Details

Reaction catalysed:
Hydrolysis of terminal (1->4)-linked alpha-D-glucose residues successively from non-reducing ends of the chains with release of beta-D-glucose
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-558476 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
glucan 1,4-alpha-glucosidase Chain: A
Molecule details ›
Chain: A
Length: 106 amino acids
Theoretical weight: 11.66 KDa
Source organism: Rhizopus arrhizus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q2VC81 (Residues: 26-131; Coverage: 18%)
Gene name: amyA
Sequence domains: Carbohydrate/starch-binding module (family 21)
Structure domains: Carbohydrate binding type-21 domain

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSRRC BEAMLINE BL13C1
Spacegroup: P212121
Unit cell:
a: 26.635Å b: 33.894Å c: 93.389Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.147 0.146 0.169
Expression system: Escherichia coli BL21(DE3)