1E42

Beta2-adaptin appendage domain, from clathrin adaptor AP2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.196 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

The Structure and Function of the Beta2-Adaptin Appendage Domain

Owen, D.J.Vallis, Y.Pearse, B.M.F.Mcmahon, H.T.Evans, P.R.

(2000) EMBO J 19: 4216

  • DOI: https://doi.org/10.1093/emboj/19.16.4216
  • Primary Citation of Related Structures:  
    1E42

  • PubMed Abstract: 

    The heterotetrameric AP2 adaptor (alpha, beta 2, mu 2 and sigma 2 subunits) plays a central role in clathrin-mediated endocytosis. We present the protein recruitment function and 1.7 A resolution structure of its beta 2-appendage domain to complement those previously determined for the mu 2 subunit and alpha appendage. Using structure-directed mutagenesis, we demonstrate the ability of the beta 2 appendage alone to bind directly to clathrin and the accessory proteins AP180, epsin and eps15 at the same site. Clathrin polymerization is promoted by binding of clathrin simultaneously to the beta 2-appendage site and to a second site on the adjacent beta 2 hinge. This results in the displacement of the other ligands from the beta 2 appendage. Thus clathrin binding to an AP2-accessory protein complex would cause the controlled release of accessory proteins at sites of vesicle formation.


  • Organizational Affiliation

    MRC Laboratory of Molecular Biology, Hills Road, Cambridge, CB2 2QH, UK.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
AP-2 COMPLEX SUBUNIT BETA
A, B
258Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P63010 (Homo sapiens)
Explore P63010 
Go to UniProtKB:  P63010
PHAROS:  P63010
GTEx:  ENSG00000006125 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP63010
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
DTD
Query on DTD

Download Ideal Coordinates CCD File 
C [auth A],
H [auth B]
DITHIANE DIOL
C4 H8 O2 S2
YPGMOWHXEQDBBV-IMJSIDKUSA-N
GOL
Query on GOL

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G [auth A],
O [auth B]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
NI
Query on NI

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L [auth B]NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
CL
Query on CL

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E [auth A],
F [auth A],
M [auth B],
N [auth B]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
MG
Query on MG

Download Ideal Coordinates CCD File 
D [auth A],
I [auth B],
J [auth B],
K [auth B]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.196 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.04α = 90
b = 124.59β = 124.18
c = 67.64γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
SHARPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-08-21
    Type: Initial release
  • Version 1.1: 2011-08-24
    Changes: Database references, Derived calculations, Non-polymer description, Other, Structure summary
  • Version 1.2: 2024-05-08
    Changes: Data collection, Database references, Derived calculations, Other