3HS8

Intersectin 1-peptide-AP2 alpha ear complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.189 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Regulation of synaptic vesicle recycling by complex formation between intersectin 1 and the clathrin adaptor complex AP2.

Pechstein, A.Bacetic, J.Vahedi-Faridi, A.Gromova, K.Sundborger, A.Tomlin, N.Krainer, G.Vorontsova, O.Schafer, J.G.Owe, S.G.Cousin, M.A.Saenger, W.Shupliakov, O.Haucke, V.

(2010) Proc.Natl.Acad.Sci.USA 107: 4206-4211

  • DOI: 10.1073/pnas.0911073107
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Clathrin-mediated synaptic vesicle (SV) recycling involves the spatiotemporally controlled assembly of clathrin coat components at phosphatidylinositiol (4, 5)-bisphosphate [PI(4,5)P(2)]-enriched membrane sites within the periactive zone. Such spatio ...

    Clathrin-mediated synaptic vesicle (SV) recycling involves the spatiotemporally controlled assembly of clathrin coat components at phosphatidylinositiol (4, 5)-bisphosphate [PI(4,5)P(2)]-enriched membrane sites within the periactive zone. Such spatiotemporal control is needed to coordinate SV cargo sorting with clathrin/AP2 recruitment and to restrain membrane fission and synaptojanin-mediated uncoating until membrane deformation and clathrin coat assembly are completed. The molecular events underlying these control mechanisms are unknown. Here we show that the endocytic SH3 domain-containing accessory protein intersectin 1 scaffolds the endocytic process by directly associating with the clathrin adaptor AP2. Acute perturbation of the intersectin 1-AP2 interaction in lamprey synapses in situ inhibits the onset of SV recycling. Structurally, complex formation can be attributed to the direct association of hydrophobic peptides within the intersectin 1 SH3A-B linker region with the "side sites" of the AP2 alpha- and beta-appendage domains. AP2 appendage association of the SH3A-B linker region inhibits binding of the inositol phosphatase synaptojanin 1 to intersectin 1. These data identify the intersectin-AP2 complex as an important regulator of clathrin-mediated SV recycling in synapses.


    Organizational Affiliation

    Institute of Chemistry and Biochemistry, Freie Universität and Charité Universitätsmedizin Berlin, 14195 Berlin, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Adaptor protein complex AP-2, alpha 2 subunit
A
273Mus musculusMutation(s): 0 
Gene Names: Ap2a2 (Adtab)
Find proteins for P17427 (Mus musculus)
Go to UniProtKB:  P17427
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
peptide from Intersectin-1, residues 840-851
P
12Mus musculusMutation(s): 0 
Gene Names: Itsn1 (Ese1, Itsn)
Find proteins for Q9Z0R4 (Mus musculus)
Go to UniProtKB:  Q9Z0R4
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.189 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 64.484α = 90.00
b = 120.412β = 90.00
c = 32.220γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
MOLREPphasing
PDB_EXTRACTdata extraction
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-02-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance
  • Version 1.2: 2017-11-01
    Type: Refinement description