2v8m

X-ray diffraction
2.3Å 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-110646 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
glucan 1,4-alpha-glucosidase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 106 amino acids
Theoretical weight: 11.66 KDa
Source organism: Rhizopus arrhizus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: B7XC04 (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

Carbohydrate polymer : NEW Components: GLC
1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSRRC BEAMLINE BL13C1
Spacegroup: P21
Unit cell:
a: 37.686Å b: 110.908Å c: 61.161Å
α: 90° β: 90.72° γ: 90°
R-values:
R R work R free
0.238 0.238 0.28
Expression system: Escherichia coli BL21(DE3)