1Q0V

Solution Structure of Tandem UIMs of Vps27


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 80 
  • Conformers Submitted: 20 
  • Selection Criteria: the submitted conformer models are the 20 structures with the lowest restraint energies, restraint violations, and RMS deviations from ideal covalent geometry 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Solution structure of Vps27 UIM-ubiquitin complex important for endosomal sorting and receptor downregulation.

Swanson, K.A.Kang, R.S.Stamenova, S.D.Hicke, L.Radhakrishnan, I.

(2003) EMBO J 22: 4597-4606

  • DOI: 10.1093/emboj/cdg471
  • Primary Citation of Related Structures:  
    1Q0W, 1Q0V

  • PubMed Abstract: 
  • Monoubiquitylation is a well-characterized signal for the internalization and sorting of integral membrane proteins to distinct cellular organelles. Recognition and transmission of monoubiquitin signals is mediated by a variety of ubiquitin-binding m ...

    Monoubiquitylation is a well-characterized signal for the internalization and sorting of integral membrane proteins to distinct cellular organelles. Recognition and transmission of monoubiquitin signals is mediated by a variety of ubiquitin-binding motifs such as UIM, UBA, UEV, VHS and CUE in endocytic proteins. The yeast Vps27 protein requires two UIMs for efficient interactions with ubiquitin and for sorting cargo into multivesicular bodies. Here we show that the individual UIMs of Vps27 exist as autonomously folded alpha-helices that bind ubiquitin independently, non-cooperatively and with modest affinity. The Vps27 N-terminal UIM engages the Leu8-Ile44-Val70 hydrophobic patch of ubiquitin through a helical surface conserved in UIMs of diverse proteins, including that of the S5a proteasomal regulatory subunit. The Leu8-Ile44-Val70 ubiquitin surface is also the site of interaction for CUE and UBA domains in endocytic proteins, consistent with the view that ubiquitin-binding endocytic proteins act serially on the same monoubiquitylated cargo during transport from cell surface to the lysosome.


    Organizational Affiliation

    Department of Biochemistry, Molecular Biology and Cell Biology, Northwestern University, Evanston, IL 60208-3500, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
hydrophilic protein; has cysteine rich putative zinc finger essential for function; Vps27pA81Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: VPS27
Find proteins for P40343 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P40343 
Go to UniProtKB:  P40343
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 80 
  • Conformers Submitted: 20 
  • Selection Criteria: the submitted conformer models are the 20 structures with the lowest restraint energies, restraint violations, and RMS deviations from ideal covalent geometry 
  • OLDERADO: 1Q0V Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-12-23
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance