3L81

Crystal structure of adaptor protein complex 4 (AP-4) mu4 subunit C-terminal domain, in complex with a sorting peptide from the amyloid precursor protein (APP)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.209 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Sorting of the Alzheimer's disease amyloid precursor protein mediated by the AP-4 complex.

Burgos, P.V.Mardones, G.A.Rojas, A.L.daSilva, L.L.Prabhu, Y.Hurley, J.H.Bonifacino, J.S.

(2010) Dev Cell 18: 425-436

  • DOI: 10.1016/j.devcel.2010.01.015
  • Primary Citation of Related Structures:  
    3L81

  • PubMed Abstract: 
  • Adaptor protein 4 (AP-4) is the most recently discovered and least well-characterized member of the family of heterotetrameric adaptor protein (AP) complexes that mediate sorting of transmembrane cargo in post-Golgi compartments. Herein, we report the in ...

    Adaptor protein 4 (AP-4) is the most recently discovered and least well-characterized member of the family of heterotetrameric adaptor protein (AP) complexes that mediate sorting of transmembrane cargo in post-Golgi compartments. Herein, we report the interaction of an YKFFE sequence from the cytosolic tail of the Alzheimer's disease amyloid precursor protein (APP) with the mu4 subunit of AP-4. Biochemical and X-ray crystallographic analyses reveal that the properties of the APP sequence and the location of the binding site on mu4 are distinct from those of other signal-adaptor interactions. Disruption of the APP-AP-4 interaction decreases localization of APP to endosomes and enhances gamma-secretase-catalyzed cleavage of APP to the pathogenic amyloid-beta peptide. These findings demonstrate that APP and AP-4 engage in a distinct type of signal-adaptor interaction that mediates transport of APP from the trans-Golgi network (TGN) to endosomes, thereby reducing amyloidogenic processing of the protein.


    Organizational Affiliation

    Cell Biology and Metabolism Program, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
AP-4 complex subunit mu-1 A301Homo sapiensMutation(s): 2 
Gene Names: AP4M1MUARP2
Find proteins for O00189 (Homo sapiens)
Explore O00189 
Go to UniProtKB:  O00189
NIH Common Fund Data Resources
PHAROS:  O00189
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Amyloid beta A4 protein B7N/AMutation(s): 0 
Find proteins for P05067 (Homo sapiens)
Explore P05067 
Go to UniProtKB:  P05067
NIH Common Fund Data Resources
PHAROS:  P05067
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.209 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.672α = 90
b = 56.91β = 106.53
c = 60.664γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing
RESOLVEphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-06-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-01
    Changes: Refinement description