3OLM

Structure and Function of a Ubiquitin Binding Site within the Catalytic Domain of a HECT Ubiquitin Ligase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.495 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure and function of a HECT domain ubiquitin-binding site.

Kim, H.C.Steffen, A.M.Oldham, M.L.Chen, J.Huibregtse, J.M.

(2011) Embo Rep. 12: 334-341

  • DOI: 10.1038/embor.2011.23

  • PubMed Abstract: 
  • The Rsp5 ubiquitin ligase contains a non-covalent binding site for ubiquitin within the amino-terminal lobe (N-lobe) of the HECT domain, and the X-ray crystal structure of the HECT-ubiquitin complex has been determined. Hydrophobic patch residues of ...

    The Rsp5 ubiquitin ligase contains a non-covalent binding site for ubiquitin within the amino-terminal lobe (N-lobe) of the HECT domain, and the X-ray crystal structure of the HECT-ubiquitin complex has been determined. Hydrophobic patch residues of ubiquitin (L8, I44, V70) were crucial for interaction with Rsp5, and amino-acid alterations at the Rsp5-binding interface resulted in defects in polyubiquitination. Our results support a model in which the N-lobe-binding site acts to localize and orient the distal end of the ubiquitin chain to promote conjugation of the next ubiquitin molecule.


    Organizational Affiliation

    Institute for Cellular and Molecular Biology, University of Texas, Austin, Texas 78712, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
E3 ubiquitin-protein ligase RSP5
A
429Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RSP5 (MDP1, NPI1)
EC: 2.3.2.26
Find proteins for P39940 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P39940
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin
D
79Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: UBI4 (SCD2)
Find proteins for P0CG63 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P0CG63
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.495 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.220 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 161.570α = 90.00
b = 50.331β = 116.72
c = 79.684γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
Blu-Icedata collection
PHENIXrefinement
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-03-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2013-09-25
    Type: Derived calculations