5hyp

X-ray diffraction
3.02Å resolution

Structure of human C4b-binding protein alpha cain CCP domains 1 and 2 in complex with the hypervariable region of group A Streptococcus M28 protein

Released:

Function and Biology Details

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

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-137312 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
C4b-binding protein alpha chain Chain: A
Molecule details ›
Chain: A
Length: 128 amino acids
Theoretical weight: 14.16 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P04003 (Residues: 49-172; Coverage: 23%)
Gene names: C4BP, C4BPA
Sequence domains: Sushi repeat (SCR repeat)
Structure domains: Complement Module, domain 1
Gram-positive cocci surface proteins LPxTG domain-containing protein Chain: B
Molecule details ›
Chain: B
Length: 104 amino acids
Theoretical weight: 12.19 KDa
Source organism: Streptococcus pyogenes
Expression system: Escherichia coli
UniProt:
  • Canonical: W0T1Y4 (Residues: 42-141; Coverage: 25%)
Gene name: emm28

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.1
Spacegroup: P4332
Unit cell:
a: 133.192Å b: 133.192Å c: 133.192Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.255 0.251 0.288
Expression system: Escherichia coli