4O06 image
Deposition Date 2013-12-13
Release Date 2014-04-16
Last Version Date 2023-09-20
Entry Detail
PDB ID:
4O06
Keywords:
CHAPERONE
Title:
1.15A Resolution Structure of the Proteasome Assembly Chaperone Nas2 PDZ Domain
Biological Source:
Source Organism:
Saccharomyces cerevisiae (Taxon ID: 559292)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.15 Å
R-Value Free:
0.19
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 41 21 2
4O06 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Probable 26S proteasome regulatory subunit p27
Gene (Uniprot):NAS2
Chain IDs:A
Chain Length:106
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P40555 Pfam ID:PF00595
Ligand Molecules
PG4
SO4
Primary Citation
1.15 angstrom resolution structure of the proteasome-assembly chaperone Nas2 PDZ domain.
Acta Crystallogr F Struct Biol Commun 70 418 423 (2014)
PMID: 24699731 DOI: 10.1107/S2053230X14003884

Abstact

The 26S proteasome is a 2.5 MDa protease dedicated to the degradation of ubiquitinated proteins in eukaryotes. The assembly of this complex containing 66 polypeptides is assisted by at least nine proteasome-specific chaperones. One of these, Nas2, binds to the proteasomal AAA-ATPase subunit Rpt5. The PDZ domain of Nas2 binds to the C-terminal tail of Rpt5; however, it does not require the C-terminus of Rpt5 for binding. Here, the 1.15 Å resolution structure of the PDZ domain of Nas2 is reported. This structure will provide a basis for further insights regarding the structure and function of Nas2 in proteasome assembly.

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Primary Citation of related structures
4O06