2VX8

Vamp7 longin domain Hrb peptide complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Molecular Basis for the Sorting of the Snare Vamp7 Into Endocytic Clathrin-Coated Vesicles by the Arfgap Hrb.

Pryor, P.R.Jackson, L.Gray, S.R.Edeling, M.A.Thompson, A.Sanderson, C.M.Evans, P.R.Owen, D.J.Luzio, J.P.

(2008) Cell 134: 817

  • DOI: 10.1016/j.cell.2008.07.023

  • PubMed Abstract: 
  • SNAREs provide the specificity and energy for the fusion of vesicles with their target membrane, but how they are sorted into the appropriate vesicles on post-Golgi trafficking pathways is largely unknown. We demonstrate that the clathrin-mediated en ...

    SNAREs provide the specificity and energy for the fusion of vesicles with their target membrane, but how they are sorted into the appropriate vesicles on post-Golgi trafficking pathways is largely unknown. We demonstrate that the clathrin-mediated endocytosis of the SNARE VAMP7 is directly mediated by Hrb, a clathrin adaptor and ArfGAP. Hrb wraps 20 residues of its unstructured C-terminal tail around the folded VAMP7 longin domain, demonstrating that unstructured regions of clathrin adaptors can select cargo. Disrupting this interaction by mutation of the VAMP7 longin domain or depletion of Hrb causes VAMP7 to accumulate on the cell's surface. However, the SNARE helix of VAMP7 binds back onto its longin domain, outcompeting Hrb for binding to the same groove and suggesting that Hrb-mediated endocytosis of VAMP7 occurs only when VAMP7 is incorporated into a cis-SNARE complex. These results elucidate the mechanism of retrieval of a postfusion SNARE complex in clathrin-coated vesicles.


    Organizational Affiliation

    Cambridge Institute for Medical Research and Department of Clinical Biochemistry, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0XY, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NUCLEOPORIN-LIKE PROTEIN RIP, VESICLE-ASSOCIATED MEMBRANE PROTEIN 7
A, B, C, D
169Homo sapiensMus musculus
This entity is chimeric
Mutation(s): 0 
Gene Names: AGFG1 (HRB, RAB, RIP), Vamp7 (Sybl1)
Find proteins for P52594 (Homo sapiens)
Go to Gene View: AGFG1
Go to UniProtKB:  P52594
Find proteins for P70280 (Mus musculus)
Go to UniProtKB:  P70280
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
B, D
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.220 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 105.514α = 90.00
b = 115.102β = 90.00
c = 55.440γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
SHARPphasing
MOSFLMdata reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-09-16
    Type: Initial release