2G30

beta appendage of AP2 complexed with ARH peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.216 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Molecular Switches Involving the AP-2 beta2 Appendage Regulate Endocytic Cargo Selection and Clathrin Coat Assembly

Edeling, M.A.Mishra, S.K.Keyel, P.A.Steinhauser, A.L.Collins, B.M.Roth, R.Heuser, J.E.Owen, D.J.Traub, L.M.

(2006) Dev Cell 10: 329-342

  • DOI: 10.1016/j.devcel.2006.01.016
  • Primary Citation of Related Structures:  
    2G30

  • PubMed Abstract: 
  • Clathrin-associated sorting proteins (CLASPs) expand the repertoire of endocytic cargo sorted into clathrin-coated vesicles beyond the transmembrane proteins that bind physically to the AP-2 adaptor. LDL and GPCRs are internalized by ARH and beta-arrestin, respectively ...

    Clathrin-associated sorting proteins (CLASPs) expand the repertoire of endocytic cargo sorted into clathrin-coated vesicles beyond the transmembrane proteins that bind physically to the AP-2 adaptor. LDL and GPCRs are internalized by ARH and beta-arrestin, respectively. We show that these two CLASPs bind selectively to the AP-2 beta2 appendage platform via an alpha-helical [DE](n)X(1-2)FXX[FL]XXXR motif, and that this motif also occurs and is functional in the epsins. In beta-arrestin, this motif maintains the endocytosis-incompetent state by binding back on the folded core of the protein in a beta strand conformation. Triggered via a beta-arrestin/GPCR interaction, the motif must be displaced and must undergo a strand to helix transition to enable the beta2 appendage binding that drives GPCR-beta-arrestin complexes into clathrin coats. Another interaction surface on the beta2 appendage sandwich is identified for proteins such as eps15 and clathrin, suggesting a mechanism by which clathrin displaces eps15 to lattice edges during assembly.


    Organizational Affiliation

    Cambridge Institute for Medical Research, University of Cambridge, Cambridge CB2 2XY, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 complex subunit beta-1A258Homo sapiensMutation(s): 0 
Gene Names: AP2B1CLAPB1ADTB2
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Find proteins for P63010 (Homo sapiens)
Explore P63010 
Go to UniProtKB:  P63010
PHAROS:  P63010
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
16-mer peptide from Low density lipoprotein receptor adapter protein 1B [auth P]16N/AMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q5SW96 (Homo sapiens)
Explore Q5SW96 
Go to UniProtKB:  Q5SW96
PHAROS:  Q5SW96
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
peptide sequence AAFC [auth S]3N/AMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.216 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.75α = 90
b = 36.313β = 92.91
c = 98.982γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
AMoREphasing
REFMACrefinement
PDB_EXTRACTdata extraction
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-03-14
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance