PDBe 4i6l

X-ray diffraction
2.49Å resolution

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:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Ubiquitin thioesterase OTUB1 Chain: A
Molecule details ›
Chain: A
Length: 229 amino acids
Theoretical weight: 26.57 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q96FW1 (Residues: 45-271; Coverage: 84%)
  • Best match: Q96FW1-2 (Residues: 157-315)
Gene names: HSPC263, OTB1, OTU1, OTUB1
Structure domains:
Ubiquitin Chain: B
Molecule details ›
Chain: B
Length: 76 amino acids
Theoretical weight: 8.76 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P0CG48 (Residues: 609-682; Coverage: 11%)
Gene name: UBC
Sequence domains: Ubiquitin family
Structure domains: Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 24-ID-E
Spacegroup: C2221
Unit cell:
a: 92.444Å b: 109.069Å c: 73.238Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.222 0.22 0.266
Expression system: Escherichia coli