PDBe 1j12

X-ray diffraction
2.1Å resolution

Beta-Amylase from Bacillus cereus var. mycoides in Complex with alpha-EBG


Function and Biology Details

Reaction catalysed:
Hydrolysis of (1->4)-alpha-D-glucosidic linkages in polysaccharides so as to remove successive maltose units from the non-reducing ends of the chains. 
Biochemical function:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Beta-amylase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 516 amino acids
Theoretical weight: 58.36 KDa
Source organism: Bacillus cereus
  • Canonical: P36924 (Residues: 31-546; Coverage: 100%)
Gene name: spoII
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200
Spacegroup: C2
Unit cell:
a: 177.9Å b: 112.9Å c: 146.2Å
α: 90° β: 105.8° γ: 90°
R R work R free
0.198 0.198 0.253