PDBe 5kf4

X-ray diffraction
2.5Å resolution

Crystal structure of FN3 domain (Residues P368-P466) of Human collagen XX

Source organism: Homo sapiens
Primary publication:
Crystal structure of the second fibronectin type III (FN3) domain from human collagen α1 type XX.
Acta Crystallogr F Struct Biol Commun 73 695-700 (2017)
PMID: 29199991

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
Collagen alpha-1(XX) chain Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 100 amino acids
Theoretical weight: 10.5 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: Q9P218 (Residues: 368-466; Coverage: 8%)
Gene names: COL20A1, KIAA1510
Sequence domains: Fibronectin type III domain

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U
Spacegroup: P212121
Unit cell:
a: 56.476Å b: 78.597Å c: 81.989Å
α: 90° β: 90° γ: 90°
R R work R free
0.259 0.258 0.284
Expression system: Escherichia coli