PDBe 2xk5

X-ray diffraction
3Å resolution

Crystal structure of K6-linked diubiquitin

Released:

Function and Biology Details

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

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Ubiquitin Chain: A
Molecule details ›
Chain: A
Length: 76 amino acids
Theoretical weight: 8.58 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P62979 (Residues: 1-76; Coverage: 49%)
Gene names: RPS27A, UBA80, UBCEP1
Sequence domains: Ubiquitin family
Structure domains: Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1
Ubiquitin Chain: B
Molecule details ›
Chain: B
Length: 76 amino acids
Theoretical weight: 8.59 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P62979 (Residues: 1-76; Coverage: 49%)
Gene names: RPS27A, UBA80, UBCEP1
Sequence domains: Ubiquitin family
Structure domains: Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-2
Spacegroup: P4332
Unit cell:
a: 104.84Å b: 104.84Å c: 104.84Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.218 0.213 0.248
Expression system: Escherichia coli