Structure analysis

Human Constitutive 20S Proteasome

X-ray diffraction
2.6Å resolution
Source organism: Homo sapiens
Assembly composition:
hetero 28-mer (preferred)
Entry contents: 14 distinct polypeptide molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero 28-mer
Accessible surface area: 214655.31 Å2
Buried surface area: 110825.12 Å2
Dissociation area: 5,660.51 Å2
Dissociation energy (ΔGdiss): 51.21 kcal/mol
Dissociation entropy (TΔSdiss): 16.14 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-127173

Macromolecules

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Chains: J, X
Length: 204 amino acids
Theoretical weight: 22.84 KDa
Source organism: Homo sapiens
UniProt:
  • Canonical: P49720 (Residues: 2-205; Coverage: 100%)
Gene name: PSMB3
Pfam: Proteasome subunit
InterPro:
CATH: Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1

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Chains: 1, M
Length: 213 amino acids
Theoretical weight: 23.58 KDa
Source organism: Homo sapiens
UniProt:
  • Canonical: P20618 (Residues: 29-241; Coverage: 88%)
Gene names: PSC5, PSMB1
Pfam: Proteasome subunit
InterPro:
CATH: Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1

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