6do5

X-ray diffraction
2.5Å resolution

KLHDC2 ubiquitin ligase in complex with USP1 C-end degron

Released:

Function and Biology Details

Reaction catalysed:
Thiol-dependent hydrolysis of ester, thioester, amide, peptide and isopeptide bonds formed by the C-terminal Gly of ubiquitin (a 76-residue protein attached to proteins as an intracellular targeting signal).
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-131757 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Kelch domain-containing protein 2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 363 amino acids
Theoretical weight: 41.35 KDa
Source organism: Homo sapiens
Expression system: Trichoplusia ni
UniProt:
  • Canonical: Q9Y2U9 (Residues: 1-362; Coverage: 89%)
Gene names: HCA33, KLHDC2
Sequence domains: Galactose oxidase, central domain
Ubiquitin carboxyl-terminal hydrolase 1, N-terminal fragment Chains: C, D
Molecule details ›
Chains: C, D
Length: 6 amino acids
Theoretical weight: 529 Da
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: O94782 (Residues: 666-671; Coverage: 1%)
Gene name: USP1

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.1
Spacegroup: P21
Unit cell:
a: 44.496Å b: 87.086Å c: 88.322Å
α: 90° β: 104.56° γ: 90°
R-values:
R R work R free
0.203 0.2 0.252
Expression systems:
  • Trichoplusia ni
  • Not provided