3WHJ

Crystal structure of Nas2 N-terminal domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.161 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural Basis for Proteasome Formation Controlled by an Assembly Chaperone Nas2

Satoh, T.Saeki, Y.Hiromoto, T.Wang, Y.H.Uekusa, Y.Yagi, H.Yoshihara, H.Yagi-Utsumi, M.Mizushima, T.Tanaka, K.Kato, K.

(2014) Structure 

  • DOI: 10.1016/j.str.2014.02.014
  • Primary Citation of Related Structures:  
    3WHJ, 3WHK, 3WHL

  • PubMed Abstract: 
  • Proteasome formation does not occur due to spontaneous self-organization but results from a highly ordered process assisted by several assembly chaperones. The assembly of the proteasome ATPase subunits is assisted by four client-specific chaperones, of which three have been structurally resolved ...

    Proteasome formation does not occur due to spontaneous self-organization but results from a highly ordered process assisted by several assembly chaperones. The assembly of the proteasome ATPase subunits is assisted by four client-specific chaperones, of which three have been structurally resolved. Here, we provide the structural basis for the working mechanisms of the last, hereto structurally uncharacterized assembly chaperone, Nas2. We revealed that Nas2 binds to the Rpt5 subunit in a bivalent mode: the N-terminal helical domain of Nas2 masks the Rpt1-interacting surface of Rpt5, whereas its C-terminal PDZ domain caps the C-terminal proteasome-activating motif. Thus, Nas2 operates as a proteasome activation blocker, offering a checkpoint during the formation of the 19S ATPase prior to its docking onto the proteolytic 20S core particle.


    Organizational Affiliation

    Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan; Okazaki Institute for Integrative Bioscience and Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan. Electronic address: kkatonmr@ims.ac.jp.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Probable 26S proteasome regulatory subunit p27A122Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: NAS2YIL007C
UniProt
Find proteins for P40555 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P40555 
Go to UniProtKB:  P40555
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.161 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 64.59α = 90
b = 64.59β = 90
c = 149.76γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
SOLVEphasing
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-03-26
    Type: Initial release
  • Version 1.1: 2014-04-16
    Changes: Database references