5LN1

STRUCTURE OF UBIQUITYLATED-RPN10 FROM YEAST;

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.14 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Structure of ubiquitylated-Rpn10 provides insight into its autoregulation mechanism.

Keren-Kaplan, T., Zeev Peters, L., Levin-Kravets, O., Attali, I., Kleifeld, O., Shohat, N., Artzi, S., Zucker, O., Pilzer, I., Reis, N., Glickman, M.H., Ben-Aroya, S., Prag, G.

(2016) Nat Commun 7: 12960-12960

  • DOI: 10.1038/ncomms12960

  • PubMed Abstract: 

    • Ubiquitin receptors decode ubiquitin signals into many cellular responses. Ubiquitin receptors also undergo coupled monoubiquitylation, and rapid deubiquitylation has hampered the characterization of the ubiquitylated state. Using bacteria that expre ...

    Ubiquitin receptors decode ubiquitin signals into many cellular responses. Ubiquitin receptors also undergo coupled monoubiquitylation, and rapid deubiquitylation has hampered the characterization of the ubiquitylated state. Using bacteria that express a ubiquitylation apparatus, we purified and determined the crystal structure of the proteasomal ubiquitin-receptor Rpn10 in its ubiquitylated state. The structure shows a novel ubiquitin-binding patch that directs K84 ubiquitylation. Superimposition of ubiquitylated-Rpn10 onto electron-microscopy models of proteasomes indicates that the Rpn10-conjugated ubiquitin clashes with Rpn9, suggesting that ubiquitylation might be involved in releasing Rpn10 from the proteasome. Indeed, ubiquitylation on immobilized proteasomes dissociates the modified Rpn10 from the complex, while unmodified Rpn10 mainly remains associated. In vivo experiments indicate that contrary to wild type, Rpn10-K84R is stably associated with the proteasomal subunit Rpn9. Similarly Rpn10, but not ubiquitylated-Rpn10, binds Rpn9 in vitro. Thus we suggest that ubiquitylation functions to dissociate modified ubiquitin receptors from their targets, a function that promotes cyclic activity of ubiquitin receptors.

    Related Citations: 
    • Purification and crystallization of mono-ubiquitylated ubiquitin receptor Rpn10.
      Keren-Kaplan, T.,Prag, G.
      (2012) Acta Crystallogr. Sect. F Struct. Biol. Cryst. Commun. 68: 1120

    Organizational Affiliation: 

    Department of Biochemistry and Molecular Biology and the Institute of Structural Biology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
26S proteasome regulatory subunit RPN10
A
195Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPN10 (MCB1, SUN1)
Find proteins for P38886 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P38886
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Polyubiquitin-B
U
81Homo sapiensMutation(s): 0 
Gene Names: UBB
Find proteins for P0CG47 (Homo sapiens)
Go to Gene View: UBB
Go to UniProtKB:  P0CG47
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.14 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.190 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 107.290α = 90.00
b = 49.700β = 130.55
c = 81.330γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
PHASERphasing
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
ISFIsrael1695/08

Revision History 

  • Version 1.0: 2016-10-19
    Type: Initial release
  • Version 1.1: 2019-05-08
    Type: Advisory, Data collection, Derived calculations