2VGL

AP2 CLATHRIN ADAPTOR CORE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.339 
  • R-Value Work: 0.261 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Molecular Architecture and Functional Model of the Endocytic Ap2 Complex

Collins, B.M.Mccoy, A.J.Kent, H.M.Evans, P.R.Owen, D.J.

(2002) Cell 109: 523


  • PubMed Abstract: 
  • AP2 is the best-characterized member of the family of heterotetrameric clathrin adaptor complexes that play pivotal roles in many vesicle trafficking pathways within the cell. AP2 functions in clathrin-mediated endocytosis, the process whereby cargo ...

    AP2 is the best-characterized member of the family of heterotetrameric clathrin adaptor complexes that play pivotal roles in many vesicle trafficking pathways within the cell. AP2 functions in clathrin-mediated endocytosis, the process whereby cargo enters the endosomal system from the plasma membrane. We describe the structure of the 200 kDa AP2 "core" (alpha trunk, beta2 trunk, mu2, and sigma2) complexed with the polyphosphatidylinositol headgroup mimic inositolhexakisphosphate at 2.6 A resolution. Two potential polyphosphatidylinositide binding sites are observed, one on alpha and one on mu2. The binding site for Yxxphi endocytic motifs is buried, indicating that a conformational change, probably triggered by phosphorylation in the disordered mu2 linker, is necessary to allow Yxxphi motif binding. A model for AP2 recruitment and activation is proposed.


    Organizational Affiliation

    Cambridge Institute for Medical Research, University of Cambridge, Department of Clinical Biochemistry, Wellcome Trust/MRC Building, Hills Road, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ADAPTOR PROTEIN COMPLEX AP-2, ALPHA 2 SUBUNIT
A
621Rattus norvegicusGene Names: Ap2a2 (Adtab)
Find proteins for P18484 (Rattus norvegicus)
Go to UniProtKB:  P18484
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
AP-2 COMPLEX SUBUNIT BETA-1
B
591Homo sapiensGene Names: AP2B1 (ADTB2, CLAPB1)
Find proteins for P63010 (Homo sapiens)
Go to Gene View: AP2B1
Go to UniProtKB:  P63010
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
AP-2 COMPLEX SUBUNIT MU-1
M
435Rattus norvegicusGene Names: Ap2m1
Find proteins for P84092 (Rattus norvegicus)
Go to UniProtKB:  P84092
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
AP-2 COMPLEX SUBUNIT SIGMA-1
S
142Mus musculusGene Names: Ap2s1 (Ap17, Claps2)
Find proteins for P62743 (Mus musculus)
Go to UniProtKB:  P62743
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IHP
Query on IHP

Download SDF File 
Download CCD File 
A
INOSITOL HEXAKISPHOSPHATE
C6 H18 O24 P6
IMQLKJBTEOYOSI-GPIVLXJGSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.339 
  • R-Value Work: 0.261 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 121.746α = 90.00
b = 121.746β = 90.00
c = 258.124γ = 120.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
REFMACrefinement
SHARPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-12-25
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance