› 3e0r

X-ray diffraction
2.3Å resolution

Crystal structure of cppA protein from Streptococcus pneumoniae TIGR4

Released:
DOI: 10.2210/pdb3e0r/pdb
PDB entry 3e0r coloured by chain, front view.
PDB entry 3e0r coloured by chain, side view.
PDB entry 3e0r coloured by chain, top view.
Source organism: Streptococcus pneumoniae
Entry authors: Nocek B, Mulligan R, Abdullah J, Otwinowski Z, Joachimiak A, Midwest Center for Structural Genomics (MCSG)

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-194916 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
C3-degrading proteinase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 244 amino acids
Theoretical weight: 27.98 KDa
Source organism: Streptococcus pneumoniae
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9X4I9 (Residues: 1-241; Coverage: 100%)
Gene names: SAMEA1462998_00374, cppA
Sequence domains:
Structure domains:

Ligands and Environments

1 bound ligand:
Ligand CL 1 x CL
1 modified residue:
Ligand MSE 20 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-BM
Spacegroup: P21212
Unit cell:
a: 114.742Å b: 130.741Å c: 91.535Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.192 0.189 0.256
Expression system: Escherichia coli BL21(DE3)

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