› 1ek3

X-ray diffraction
1.9Å resolution

KAPPA-4 IMMUNOGLOBULIN VL, REC

Released:
DOI: 10.2210/pdb1ek3/pdb
PDB entry 1ek3 coloured by chain, front view.
PDB entry 1ek3 coloured by chain, side view.
PDB entry 1ek3 coloured by chain, top view.
Source organism: Homo sapiens
Entry authors: Pokkuluri PR, Huang D-B, Raffen R, Stevens FJ, Schiffer M

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-138999 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Immunoglobulin kappa variable 4-1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 114 amino acids
Theoretical weight: 12.45 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P06312 (Residues: 21-121; Coverage: 100%)
Gene name: IGKV4-1
Sequence domains: Immunoglobulin V-set domain
Structure domains: Immunoglobulins

Ligands and Environments

2 bound ligands:
Ligand CL 1 x CL
Ligand CA 2 x CA
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200
Spacegroup: P212121
Unit cell:
a: 36.58Å b: 66.91Å c: 91.5Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.187 0.187 0.237
Expression system: Escherichia coli

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