1fcc

X-ray diffraction
3.2Å resolution

CRYSTAL STRUCTURE OF THE C2 FRAGMENT OF STREPTOCOCCAL PROTEIN G IN COMPLEX WITH THE FC DOMAIN OF HUMAN IGG

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-134858 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Immunoglobulin heavy constant gamma 1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 206 amino acids
Theoretical weight: 23.52 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P01857 (Residues: 121-326; Coverage: 52%)
Gene name: IGHG1
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins
Immunoglobulin G-binding protein G Chains: C, D
Molecule details ›
Chains: C, D
Length: 56 amino acids
Theoretical weight: 6.16 KDa
Source organism: Streptococcus
Expression system: Escherichia coli
UniProt:
  • Canonical: P19909 (Residues: 372-427; Coverage: 10%)
Gene name: spg
Sequence domains: B domain
Structure domains: Ubiquitin-like (UB roll)

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: P43212
Unit cell:
a: 110.6Å b: 110.6Å c: 160.3Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.289 0.289 0.357
Expression system: Escherichia coli