3DXD

Crystal structure of the intracellular domain of human APP (T668E mutant) in complex with Fe65-PTB2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the intracellular domain of the amyloid precursor protein in complex with Fe65-PTB2.

Radzimanowski, J.Simon, B.Sattler, M.Beyreuther, K.Sinning, I.Wild, K.

(2008) Embo Rep. 9: 1134-1140

  • DOI: 10.1038/embor.2008.188
  • Primary Citation of Related Structures:  3DXC, 3DXE

  • PubMed Abstract: 
  • Cleavage of the amyloid precursor protein (APP) is a crucial event in Alzheimer disease pathogenesis that creates the amyloid-beta peptide (Abeta) and liberates the carboxy-terminal APP intracellular domain (AICD) into the cytosol. The interaction of ...

    Cleavage of the amyloid precursor protein (APP) is a crucial event in Alzheimer disease pathogenesis that creates the amyloid-beta peptide (Abeta) and liberates the carboxy-terminal APP intracellular domain (AICD) into the cytosol. The interaction of the APP C terminus with the adaptor protein Fe65 mediates APP trafficking and signalling, and is thought to regulate APP processing and Abeta generation. We determined the crystal structure of the AICD in complex with the C-terminal phosphotyrosine-binding (PTB) domain of Fe65. The unique interface involves the NPxY PTB-binding motif and two alpha helices. The amino-terminal helix of the AICD is capped by threonine T(668), an Alzheimer disease-relevant phosphorylation site involved in Fe65-binding regulation. The structure together with mutational studies, isothermal titration calorimetry and nuclear magnetic resonance experiments sets the stage for understanding T(668) phosphorylation-dependent complex regulation at a molecular level. A molecular switch model is proposed.


    Related Citations: 
    • Overproduction, purification, crystallization and preliminary X-ray analysis of human Fe65-PTB2 in complex with the amyloid precursor protein intracellular domain
      Radzimanowski, R.,Beyreuther, K.,Sinning, I.,Wild, K.
      (2008) Acta Crystallogr.,Sect.F F64: 409


    Organizational Affiliation

    Heidelberg University Biochemistry Center, University of Heidelberg, INF328, D-69120 Heidelberg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Amyloid beta A4 protein-binding family B member 1
A, C
140Homo sapiensGene Names: APBB1 (FE65, RIR)
Find proteins for O00213 (Homo sapiens)
Go to Gene View: APBB1
Go to UniProtKB:  O00213
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Amyloid beta A4 protein
B, D
35Homo sapiensGene Names: APP (A4, AD1)
Find proteins for P05067 (Homo sapiens)
Go to Gene View: APP
Go to UniProtKB:  P05067
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.202 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 115.115α = 90.00
b = 115.115β = 90.00
c = 75.254γ = 120.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
SCALAdata scaling
SOLVEphasing
REFMACrefinement
DNAdata collection
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-09-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-02-01
    Type: Database references