7z8b

Electron Microscopy
2.8Å resolution

Structure of CRL7FBXW8 reveals coupling with CUL1-RBX1/ROC1 for multi-cullin-RING E3-catalyzed ubiquitin ligation

Released:

Function and Biology Details

Reactions 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
S-[NEDD8-protein]-yl-[E2 NEDD8-conjugating enzyme]-L-cysteine + [cullin]-L-lysine = [E2 NEDD8-conjugating enzyme]-L-cysteine + N(6)-[NEDD8-protein]-yl-[cullin]-L-lysine
Biochemical function:
Biological process:

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-158745 (preferred)
Entry contents:
4 distinct polypeptide molecules
Macromolecules (4 distinct):
Cullin-7 Chain: C
Molecule details ›
Chain: C
Length: 1700 amino acids
Theoretical weight: 191.56 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: Q14999 (Residues: 1-1698; Coverage: 100%)
Gene names: CUL7, KIAA0076
Sequence domains:
F-box/WD repeat-containing protein 8 Chain: F
Molecule details ›
Chain: F
Length: 600 amino acids
Theoretical weight: 67.63 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: Q8N3Y1 (Residues: 1-598; Coverage: 100%)
Gene names: FBW6, FBW8, FBX29, FBXO29, FBXW6, FBXW8
Sequence domains: F-box domain
E3 ubiquitin-protein ligase RBX1 Chain: R
Molecule details ›
Chain: R
Length: 108 amino acids
Theoretical weight: 12.29 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: P62877 (Residues: 1-108; Coverage: 100%)
Gene names: RBX1, RNF75, ROC1
Sequence domains: RING-H2 zinc finger domain
S-phase kinase-associated protein 1 Chain: S
Molecule details ›
Chain: S
Length: 163 amino acids
Theoretical weight: 18.68 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: P63208 (Residues: 1-163; Coverage: 100%)
Gene names: EMC19, OCP2, SKP1, SKP1A, TCEB1L
Sequence domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 2.8Å
Relevant EMDB volumes: EMD-14547
Expression system: Homo sapiens