2ya0

X-ray diffraction
1.85Å resolution

Catalytic Module of the Multi-modular glycogen-degrading pneumococcal virulence factor SpuA

Released:

Function and Biology Details

Reaction catalysed:
Hydrolysis of (1->6)-alpha-D-glucosidic linkages in pullulan, amylopectin and glycogen, and in the alpha- and beta-limit dextrins of amylopectin and glycogen.
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-493479 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Pullulanase A Chain: A
Molecule details ›
Chain: A
Length: 714 amino acids
Theoretical weight: 80.44 KDa
Source organism: Streptococcus pneumoniae TIGR4
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: A0A0H2UNG0 (Residues: 437-1150; Coverage: 58%)
Gene names: SP_0268, spuA
Sequence domains:
Structure domains:

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-002
Spacegroup: P21
Unit cell:
a: 57.574Å b: 75.196Å c: 87.038Å
α: 90° β: 97.31° γ: 90°
R-values:
R R work R free
0.175 0.172 0.227
Expression system: Escherichia coli BL21(DE3)