Structure analysis

Crystal structure of an open conformation of Lys48-linked diubiquitin at pH 7.5

X-ray diffraction
1.707Å resolution
Source organism: Homo sapiens
Assemblies composition:
homo dimer
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule

Assemblies

Assembly 1
Download    3D Visualisation
Multimeric state: homo dimer
Accessible surface area: 8017.36 Å2
Buried surface area: 1576.22 Å2
Dissociation area: 394.12 Å2
Dissociation energy (ΔGdiss): -6.61 kcal/mol
Dissociation entropy (TΔSdiss): 9.84 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-143418
Assembly 2
Download    3D Visualisation
Multimeric state: monomeric
Accessible surface area: 4433.03 Å2
Buried surface area: 233.54 Å2
Dissociation area: 116.77 Å2
Dissociation energy (ΔGdiss): 0.17 kcal/mol
Dissociation entropy (TΔSdiss): 0.83 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-143327
Assembly 3 (preferred)
Download    3D Visualisation
Multimeric state: monomeric
Accessible surface area: 4368.93 Å2
Buried surface area: 558.08 Å2
Dissociation area: 164.55 Å2
Dissociation energy (ΔGdiss): -6.53 kcal/mol
Dissociation entropy (TΔSdiss): 3.35 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-143327

Macromolecules

Chains: A, B
Length: 76 amino acids
Theoretical weight: 8.58 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P0CG48 (Residues: 609-684; Coverage: 11%)
Gene name: UBC
Pfam: Ubiquitin family
InterPro:
CATH: Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1

Search similar proteins