PDBe 3i40

X-ray diffraction
1.85Å resolution

Human insulin

Released:
Source organism: Homo sapiens

Function and Biology Details

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

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Insulin A chain Chain: A
Molecule details ›
Chain: A
Length: 21 amino acids
Theoretical weight: 2.38 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P01308 (Residues: 90-110; Coverage: 24%)
Gene name: INS
Insulin B chain Chain: B
Molecule details ›
Chain: B
Length: 30 amino acids
Theoretical weight: 3.4 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P01308 (Residues: 25-53; Coverage: 34%)
Gene name: INS

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BRUKER AXS MICROSTAR
Spacegroup: I213
Unit cell:
a: 77.22Å b: 77.22Å c: 77.22Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.202 0.2 0.228
Expression system: Escherichia coli