6r7h

Electron Microscopy
8.8Å resolution

Structural basis of Cullin-2 RING E3 ligase regulation by the COP9 signalosome

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:
Cellular component:

Structure analysis Details

Assembly composition:
hetero dodecamer (preferred)
PDBe Complex ID:
PDB-CPX-158231 (preferred)
Entry contents:
12 distinct polypeptide molecules
Macromolecules (12 distinct):
COP9 signalosome complex subunit 1 Chain: A
Molecule details ›
Chain: A
Length: 433 amino acids
Theoretical weight: 49.25 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q13098 (Residues: 37-469; Coverage: 88%)
Gene names: COPS1, CSN1, GPS1
Sequence domains:
Elongin-C Chain: Q
Molecule details ›
Chain: Q
Length: 112 amino acids
Theoretical weight: 12.49 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q15369 (Residues: 1-112; Coverage: 100%)
Gene names: ELOC, TCEB1
Sequence domains: Skp1 family, tetramerisation domain
Cullin-2 Chain: O
Molecule details ›
Chain: O
Length: 654 amino acids
Theoretical weight: 76.52 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q13617 (Residues: 1-654; Coverage: 88%)
Gene name: CUL2
Sequence domains: Cullin family
E3 ubiquitin-protein ligase RBX1, N-terminally processed Chain: R
Molecule details ›
Chain: R
Length: 90 amino acids
Theoretical weight: 10.66 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P62877 (Residues: 19-108; Coverage: 83%)
Gene names: RBX1, RNF75, ROC1
Sequence domains: RING-H2 zinc finger domain
COP9 signalosome complex subunit 2 Chain: B
Molecule details ›
Chain: B
Length: 414 amino acids
Theoretical weight: 48.21 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P61201 (Residues: 30-443; Coverage: 94%)
Gene names: COPS2, CSN2, TRIP15
Sequence domains: PCI domain
COP9 signalosome complex subunit 3 Chain: C
Molecule details ›
Chain: C
Length: 403 amino acids
Theoretical weight: 45.81 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q9UNS2 (Residues: 1-403; Coverage: 95%)
Gene names: COPS3, CSN3
Sequence domains:
COP9 signalosome complex subunit 4 Chain: D
Molecule details ›
Chain: D
Length: 406 amino acids
Theoretical weight: 46.32 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q9BT78 (Residues: 1-406; Coverage: 100%)
Gene names: COPS4, CSN4
Sequence domains:
COP9 signalosome complex subunit 5 Chain: E
Molecule details ›
Chain: E
Length: 311 amino acids
Theoretical weight: 35.18 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q92905 (Residues: 24-334; Coverage: 93%)
Gene names: COPS5, CSN5, JAB1
Sequence domains:
COP9 signalosome complex subunit 6 Chain: F
Molecule details ›
Chain: F
Length: 288 amino acids
Theoretical weight: 32.51 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q7L5N1 (Residues: 29-316; Coverage: 88%)
Gene names: COPS6, CSN6, HVIP
Sequence domains:
COP9 signalosome complex subunit 7b Chain: G
Molecule details ›
Chain: G
Length: 208 amino acids
Theoretical weight: 23.43 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q9H9Q2 (Residues: 8-215; Coverage: 79%)
Gene names: COPS7B, CSN7B
Sequence domains:
COP9 signalosome complex subunit 8 Chain: H
Molecule details ›
Chain: H
Length: 199 amino acids
Theoretical weight: 22.26 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q99627 (Residues: 11-209; Coverage: 95%)
Gene names: COPS8, CSN8
Sequence domains: CSN8/PSMD8/EIF3K family
Elongin-B Chain: P
Molecule details ›
Chain: P
Length: 104 amino acids
Theoretical weight: 11.75 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q15370 (Residues: 1-104; Coverage: 88%)
Gene names: ELOB, TCEB2
Sequence domains: Ubiquitin family

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 8.8Å
Relevant EMDB volumes: EMD-4741
Expression system: Spodoptera frugiperda