6utg

Electron Microscopy
3.4Å resolution

Allosteric coupling between alpha-rings of the 20S proteasome, 20S singly capped with a PA26/V230F

Released:
Primary publication:
Allosteric coupling between α-rings of the 20S proteasome.
OpenAccess logo Nat Commun 11 4580 (2020)
PMID: 32917864
Related structures: EMD-20878

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero 35-mer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-150397 (preferred)
Entry contents:
4 distinct polypeptide molecules
Macromolecules (4 distinct):
Proteasome subunit beta Chains: 1, 2, H, I, J, K, L, M, N, V, W, X, Y, Z
Molecule details ›
Chains: 1, 2, H, I, J, K, L, M, N, V, W, X, Y, Z
Length: 203 amino acids
Theoretical weight: 22.29 KDa
Source organism: Thermoplasma acidophilum
Expression system: Escherichia phage EcSzw-2
UniProt:
  • Canonical: P28061 (Residues: 9-211; Coverage: 96%)
Gene names: Ta0612, psmB
Sequence domains: Proteasome subunit
Proteasome subunit alpha Chains: A, B, C, D, E, F, G
Molecule details ›
Chains: A, B, C, D, E, F, G
Length: 227 amino acids
Theoretical weight: 25.13 KDa
Source organism: Thermoplasma acidophilum
Expression system: Escherichia phage EcSzw-2
UniProt:
  • Canonical: P25156 (Residues: 7-233; Coverage: 97%)
Gene names: Ta1288, psmA
Sequence domains:
Proteasome activator PA28 C-terminal domain-containing protein Chains: O, P, Q, R, S, T, U
Molecule details ›
Chains: O, P, Q, R, S, T, U
Length: 228 amino acids
Theoretical weight: 25 KDa
Source organism: Trypanosoma brucei
Expression system: Escherichia phage EcSzw-2
UniProt:
  • Canonical: Q9U8G2 (Residues: 4-231; Coverage: 99%)
Sequence domains: Proteasome activator PA28, C-terminal
Proteasome subunit alpha Chains: a, b, c, d, e, f, g
Molecule details ›
Chains: a, b, c, d, e, f, g
Length: 224 amino acids
Theoretical weight: 24.72 KDa
Source organism: Thermoplasma acidophilum
Expression system: Escherichia phage EcSzw-2
UniProt:
  • Canonical: P25156 (Residues: 10-233; Coverage: 96%)
Gene names: Ta1288, psmA
Sequence domains:

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.4Å
Relevant EMDB volumes: EMD-20878
Expression system: Escherichia phage EcSzw-2