3nih

X-ray diffraction
2.1Å resolution

The structure of UBR box (RIAAA)

Released:

Function and Biology Details

Reaction catalysed:
S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine + [acceptor protein]-L-lysine = [E2 ubiquitin-conjugating enzyme]-L-cysteine + N(6)-ubiquitinyl-[acceptor protein]-L-lysine
Biochemical function:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-148746 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
E3 ubiquitin-protein ligase UBR1 Chain: A
Molecule details ›
Chain: A
Length: 82 amino acids
Theoretical weight: 9.24 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P19812 (Residues: 115-194; Coverage: 4%)
Gene names: G7168, PTR1, UBR1, YGR184C
Sequence domains: Putative zinc finger in N-recognin (UBR box)
Structure domains: Cysteine Rich Protein
Peptide RIAAA Chain: B
Molecule details ›
Chain: B
Length: 5 amino acids
Theoretical weight: 502 Da
Source organism: Saccharomyces cerevisiae
Expression system: Not provided

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PAL/PLS BEAMLINE 4A
Spacegroup: P6122
Unit cell:
a: 58.274Å b: 58.274Å c: 110.999Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.255 0.253 0.285
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided