PDBe 2xi9

X-ray diffraction
1.9Å resolution

Pilus-presented adhesin, Spy0125 (Cpa), P1 form


Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Ancillary protein 1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 457 amino acids
Theoretical weight: 51.48 KDa
Source organism: Streptococcus pyogenes
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q8GRA2 (Residues: 286-723; Coverage: 58%)
Gene name: cpa1
Sequence domains: Thioester domain
Structure domains:

Ligands and Environments

No bound ligands

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM14
Spacegroup: P1
Unit cell:
a: 35.48Å b: 66.46Å c: 101.8Å
α: 86.06° β: 90.06° γ: 75.08°
R R work R free
0.207 0.206 0.232
Expression system: Escherichia coli BL21(DE3)