X-ray diffraction
1.4Å resolution

Structure of integrin alpha1beta1 and alpha2beta1 I-domains explain differential calcium-mediated ligand recognition


Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Integrin alpha-1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 195 amino acids
Theoretical weight: 21.86 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P56199 (Residues: 170-364; Coverage: 17%)
Gene name: ITGA1
Sequence domains: von Willebrand factor type A domain
Structure domains: von Willebrand factor, type A domain

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 24-ID-C
Spacegroup: P21
Unit cell:
a: 37.369Å b: 95.95Å c: 53.078Å
α: 90° β: 104° γ: 90°
R R work R free
0.179 0.178 0.205
Expression system: Escherichia coli