1p7k

X-ray diffraction
1.75Å resolution

Crystal structure of an anti-ssDNA antigen-binding fragment (Fab) bound to 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid (HEPES)

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-125130 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Ig-like domain-containing protein Chains: A, L
Molecule details ›
Chains: A, L
Length: 214 amino acids
Theoretical weight: 23.62 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: I6L978 (Residues: 21-234; Coverage: 100%)
Gene name: Igk
Sequence domains:
Structure domains: Immunoglobulins
Ig gamma-1 chain C region secreted form Chains: B, H
Molecule details ›
Chains: B, H
Length: 224 amino acids
Theoretical weight: 24.15 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: P01868 (Residues: 1-102; Coverage: 32%)
Gene names: Igh-4, Ighg1
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RUH3R, NSLS BEAMLINE X8C
Spacegroup: P21212
Unit cell:
a: 107.666Å b: 156.703Å c: 61.003Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.201 0.197 0.23
Expression system: Escherichia coli