1QQE

CRYSTAL STRUCTURE OF THE VESICULAR TRANSPORT PROTEIN SEC17


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.262 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of the vesicular transport protein Sec17: implications for SNAP function in SNARE complex disassembly.

Rice, L.M.Brunger, A.T.

(1999) Mol Cell 4: 85-95

  • DOI: 10.1016/s1097-2765(00)80190-2
  • Primary Citation of Related Structures:  
    1QQE

  • PubMed Abstract: 
  • SNAP proteins play an essential role in membrane trafficking in eukaryotic cells. They activate and recycle SNARE proteins by serving as adaptors between SNAREs and the cytosolic chaperone NSF. We have determined the crystal structure of Sec17, the yeast homolog of alpha-SNAP, to 2 ...

    SNAP proteins play an essential role in membrane trafficking in eukaryotic cells. They activate and recycle SNARE proteins by serving as adaptors between SNAREs and the cytosolic chaperone NSF. We have determined the crystal structure of Sec17, the yeast homolog of alpha-SNAP, to 2.9 A resolution. Sec17 is composed of an N-terminal twisted sheet of alpha-helical hairpins and a C-terminal alpha-helical bundle. The N-terminal sheet has local similarity to the tetratricopeptide repeats from protein phosphatase 5 but has a different overall twist. Sec17 also shares structural features with HEAT and clathrin heavy chain repeats. Possible models of SNAP:SNARE binding suggest that SNAPs may function as lever arms, transmitting forces generated by conformational changes in NSF/Sec18 to drive disassembly of SNARE complexes.


    Organizational Affiliation

    Howard Hughes Medical Institute, Yale University, New Haven, Connecticut 06520, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
VESICULAR TRANSPORT PROTEIN SEC17A292Saccharomyces cerevisiaeMutation(s): 1 
Membrane Entity: Yes 
UniProt
Find proteins for P32602 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P32602 
Go to UniProtKB:  P32602
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.262 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 107.9α = 90
b = 107.9β = 90
c = 46.1γ = 90
Software Package:
Software NamePurpose
CNSrefinement
ADSCdata collection
SCALEPACKdata scaling
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-09-08
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance