1KY7

THE AP-2 CLATHRIN ADAPTOR ALPHA-APPENDAGE IN COMPLEX WITH AMPHIPHYSIN FXDXF


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.187 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Accessory protein recruitment motifs in clathrin-mediated endocytosis.

Brett, T.J.Traub, L.M.Fremont, D.H.

(2002) Structure 10: 797-809

  • DOI: 10.1016/s0969-2126(02)00784-0
  • Primary Citation of Related Structures:  
    1KY6, 1KY7, 1KYD, 1KYF, 1KYU

  • PubMed Abstract: 
  • Clathrin-mediated endocytosis depends upon the interaction of accessory proteins with the alpha-ear of the AP-2 adaptor. We present structural characterization of these regulatory interactions. DPF and DPW motif peptides derived from eps15 and epsin bind in type I beta turn conformations to a conserved pocket on the alpha-ear platform ...

    Clathrin-mediated endocytosis depends upon the interaction of accessory proteins with the alpha-ear of the AP-2 adaptor. We present structural characterization of these regulatory interactions. DPF and DPW motif peptides derived from eps15 and epsin bind in type I beta turn conformations to a conserved pocket on the alpha-ear platform. We show evidence for a second binding site that is DPW motif specific. The structure of a complex with an AP-2 binding segment from amphiphysin reveals a novel binding motif that we term FxDxF, which is engaged in an extended conformation by a unique surface of the platform domain. The FxDxF motif is also used by AP180 and the 170 kDa isoform of synaptojanin and can be found in several potential endocytic proteins, including HIP1, CD2AP, and PLAP. A mechanism of clathrin assembly regulation is suggested by three different AP-2 engagement modes.


    Organizational Affiliation

    Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ALPHA-ADAPTIN CA247Mus musculusMutation(s): 0 
Gene Names: Ap2a2Adtab
UniProt & NIH Common Fund Data Resources
Find proteins for P17427 (Mus musculus)
Explore P17427 
Go to UniProtKB:  P17427
IMPC:  MGI:101920
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP17427
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
AMPHIPHYSINB [auth P]10N/AMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P49418 (Homo sapiens)
Explore P49418 
Go to UniProtKB:  P49418
PHAROS:  P49418
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP49418
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.187 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.63α = 90
b = 73.69β = 99.74
c = 41.94γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-06-12
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance