X-ray diffraction
2Å resolution

SpAga D472N structure in complex with raffinose


Function and Biology Details

Reaction catalysed:
Hydrolysis of terminal, non-reducing alpha-D-galactose residues in alpha-D-galactosides, including galactose oligosaccharides, galactomannans and galactolipids
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Alpha-galactosidase Chain: A
Molecule details ›
Chain: A
Length: 740 amino acids
Theoretical weight: 83.97 KDa
Source organism: Streptococcus pneumoniae TIGR4
Expression system: Escherichia coli BL21(DE3)
  • Canonical: A0A0H2URQ6 (Residues: 1-720; Coverage: 100%)
Gene names: SP_1898, aga
Sequence domains:

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-002
Spacegroup: I222
Unit cell:
a: 91.027Å b: 127.452Å c: 151.955Å
α: 90° β: 90° γ: 90°
R R work R free
0.193 0.191 0.232
Expression system: Escherichia coli BL21(DE3)