2VGL

AP2 CLATHRIN ADAPTOR CORE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.339 
  • R-Value Work: 0.261 
  • R-Value Observed: 0.265 

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

  • DOI: 10.1016/s0092-8674(02)00735-3
  • Primary Citation of Related Structures:  
    2VGL

  • 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
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ADAPTOR PROTEIN COMPLEX AP-2, ALPHA 2 SUBUNITA621Rattus norvegicusMutation(s): 0 
Gene Names: Ap2a2Adtab
Find proteins for P18484 (Rattus norvegicus)
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Go to UniProtKB:  P18484
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 COMPLEX SUBUNIT BETA-1B591Homo sapiensMutation(s): 0 
Gene Names: AP2B1ADTB2CLAPB1
Find proteins for P63010 (Homo sapiens)
Explore P63010 
Go to UniProtKB:  P63010
NIH Common Fund Data Resources
PHAROS  P63010
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 COMPLEX SUBUNIT MU-1M435Rattus norvegicusMutation(s): 0 
Gene Names: Ap2m1
Find proteins for P84092 (Rattus norvegicus)
Explore P84092 
Go to UniProtKB:  P84092
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 COMPLEX SUBUNIT SIGMA-1S142Mus musculusMutation(s): 0 
Gene Names: Ap2s1Ap17Claps2
Find proteins for P62743 (Mus musculus)
Explore P62743 
Go to UniProtKB:  P62743
NIH Common Fund Data Resources
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IHP
Query on IHP

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: 2.60 Å
  • R-Value Free: 0.339 
  • R-Value Work: 0.261 
  • R-Value Observed: 0.265 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 121.746α = 90
b = 121.746β = 90
c = 258.124γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
SHARPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

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