› 7e55

Electron Microscopy
5.9Å resolution

Cryo-EM structure of alpha 7 homo-tetradecamer

Released:
DOI: 10.2210/pdb7e55/pdb
PDB entry 7e55 coloured by chain, front view.
PDB entry 7e55 coloured by chain, side view.
PDB entry 7e55 coloured by chain, top view.
Source organism: Homo sapiens
Primary publication:
Structural Fluctuations of the Human Proteasome α7 Homo-Tetradecamer Double Ring Imply the Proteasomal α-Ring Assembly Mechanism.
Song C, Satoh T, Sekiguchi T, Kato K, Murata K
Int J Mol Sci 22 (2021)
PMID: 33926037
Related structures: EMD-30990

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo tetradecamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-150582 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Proteasome subunit alpha type-3 Chain: A
Molecule details ›
Chain: A
Length: 255 amino acids
Theoretical weight: 28.47 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P25788 (Residues: 1-255; Coverage: 100%)
Gene names: HC8, PSC8, PSMA3
Sequence domains:

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 5.9Å
Relevant EMDB volumes: EMD-30990
Expression system: Escherichia coli

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Citations

1 citations in other articles

Ca2+ Dependent Formation/Collapse of Cylindrical Ca2+-ATPase Crystals in Scallop Sarcoplasmic Reticulum (SR) Vesicles: A Possible Dynamic Role of SR in Regulation of Muscle Contraction.
Nakamura et al. (2023)