X-ray diffraction
1.5Å resolution


Source organism: Sus scrofa
Primary publication:
Structure of insulin in 4-zinc insulin.
Nature 261 166-8 (1976)
PMID: 1272390

Function and Biology Details

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

Structure analysis Details

Assemblies composition:
hetero dimer (preferred)
hetero dodecamer
hetero tetramer
hetero hexamer
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Insulin A chain Chains: A, C
Molecule details ›
Chains: A, C
Length: 21 amino acids
Theoretical weight: 2.38 KDa
Source organism: Sus scrofa
  • Canonical: P01315 (Residues: 88-108; Coverage: 25%)
Gene name: INS
Insulin B chain Chains: B, D
Molecule details ›
Chains: B, D
Length: 30 amino acids
Theoretical weight: 3.4 KDa
Source organism: Sus scrofa
  • Canonical: P01315 (Residues: 25-54; Coverage: 36%)
Gene name: INS

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: R3
Unit cell:
a: 80.7Å b: 80.7Å c: 37.6Å
α: 90° β: 90° γ: 120°
R R work R free
0.178 0.178 not available