3D8E

Crystal structure of the human Fe65-PTB1 domain (trigonal crystal form)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.240 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of the human Fe65-PTB1 domain.

Radzimanowski, J.Ravaud, S.Schlesinger, S.Koch, J.Beyreuther, K.Sinning, I.Wild, K.

(2008) J.Biol.Chem. 283: 23113-23120

  • DOI: 10.1074/jbc.M800861200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The neuronal adaptor protein Fe65 is involved in brain development, Alzheimer disease amyloid precursor protein (APP) signaling, and proteolytic processing of APP. It contains three protein-protein interaction domains, one WW domain, and a unique tan ...

    The neuronal adaptor protein Fe65 is involved in brain development, Alzheimer disease amyloid precursor protein (APP) signaling, and proteolytic processing of APP. It contains three protein-protein interaction domains, one WW domain, and a unique tandem array of phosphotyrosine-binding (PTB) domains. The N-terminal PTB domain (Fe65-PTB1) was shown to interact with a variety of proteins, including the low density lipoprotein receptor-related protein (LRP-1), the ApoEr2 receptor, and the histone acetyltransferase Tip60. We have determined the crystal structures of human Fe65-PTB1 in its apo- and in a phosphate-bound form at 2.2 and 2.7A resolution, respectively. The overall fold shows a PTB-typical pleckstrin homology domain superfold. Although Fe65-PTB1 has been classified on an evolutionary basis as a Dab-like PTB domain, it contains attributes of other PTB domain subfamilies. The phosphotyrosine-binding pocket resembles IRS-like PTB domains, and the bound phosphate occupies the binding site of the phosphotyrosine (Tyr(P)) within the canonical NPXpY recognition motif. In addition Fe65-PTB1 contains a loop insertion between helix alpha2 and strand beta2(alpha2/beta2 loop) similar to members of the Shc-like PTB domain subfamily. The structural comparison with the Dab1-PTB domain reveals a putative phospholipid-binding site opposite the peptide binding pocket. We suggest Fe65-PTB1 to interact with its target proteins involved in translocation and signaling of APP in a phosphorylation-dependent manner.


    Related Citations: 
    • Mercury-induced crystallization and SAD phasing of the human Fe65-PTB1 domain.
      Radzimanowski, J.,Ravaud, S.,Beyreuther, K.,Sinning, I.,Wild, K.
      (2008) Acta Crystallogr.,Sect.F 64: 382


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Amyloid beta A4 precursor protein-binding family B member 1
A, B, C, D
148Homo sapiensMutation(s): 0 
Gene Names: APBB1 (FE65, RIR)
Find proteins for O00213 (Homo sapiens)
Go to Gene View: APBB1
Go to UniProtKB:  O00213
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.240 
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 145.890α = 90.00
b = 145.890β = 90.00
c = 79.051γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
ADSCdata collection
PHASERphasing
PDB_EXTRACTdata extraction
SCALAdata scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-06-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance