3ONJ

Crystal structure of yeast Vti1p_Habc domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.92 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.179 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Epsin N-terminal homology domains bind on opposite sides of two SNAREs

Wang, J.Gossing, M.Fang, P.Zimmermann, J.Li, X.von Mollard, G.F.Niu, L.Teng, M.

(2011) Proc Natl Acad Sci U S A 108: 12277-12282

  • DOI: 10.1073/pnas.1013101108
  • Primary Citation of Related Structures:  
    3ONJ, 3ONK, 3ONL

  • PubMed Abstract: 
  • SNARE proteins are crucial for membrane fusion in vesicular transport. To ensure efficient and accurate fusion, SNAREs need to be sorted into different budding vesicles. This process is usually regulated by specific recognition between SNAREs and their adaptor proteins ...

    SNARE proteins are crucial for membrane fusion in vesicular transport. To ensure efficient and accurate fusion, SNAREs need to be sorted into different budding vesicles. This process is usually regulated by specific recognition between SNAREs and their adaptor proteins. How different pairs of SNAREs and adaptors achieve their recognition is unclear. Here, we report the recognition between yeast SNARE Vti1p and its adaptor Ent3p derived from three crystal structures. Surprisingly, this yeast pair Vti1p/Ent3p interacts through a distinct binding site compared to their homologues vti1b/epsinR in mammals. An opposite surface on Vti1p_Habc domain binds to a conserved area on the epsin N-terminal homology (ENTH) domain of Ent3p. Two-hybrid, in vitro pull-down and in vivo experiments indicate this binding interface is important for correct localization of Vti1p in the cell. This previously undescribed discovery that a cargo and adaptor pair uses different binding sites across species suggests the diversity of SNARE-adaptor recognition in vesicular transport.


    Organizational Affiliation

    University of Science and Technology of China, Hefei, Anhui 230026, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
t-SNARE VTI1 A97Saccharomyces cerevisiaeMutation(s): 0 
Find proteins for Q04338 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q04338 
Go to UniProtKB:  Q04338
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.92 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.179 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 32.112α = 90
b = 49.751β = 90
c = 51.69γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
MAR345dtbdata collection
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-07-20
    Type: Initial release
  • Version 1.1: 2011-12-21
    Changes: Database references