2LP1

The solution NMR structure of the transmembrane C-terminal domain of the amyloid precursor protein (C99)


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 30 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The amyloid precursor protein has a flexible transmembrane domain and binds cholesterol.

Barrett, P.J.Song, Y.Van Horn, W.D.Hustedt, E.J.Schafer, J.M.Hadziselimovic, A.Beel, A.J.Sanders, C.R.

(2012) Science 336: 1168-1171

  • DOI: 10.1126/science.1219988

  • PubMed Abstract: 
  • C99 is the transmembrane carboxyl-terminal domain of the amyloid precursor protein that is cleaved by γ-secretase to release the amyloid-β polypeptides, which are associated with Alzheimer's disease. Nuclear magnetic resonance and electron paramagnet ...

    C99 is the transmembrane carboxyl-terminal domain of the amyloid precursor protein that is cleaved by γ-secretase to release the amyloid-β polypeptides, which are associated with Alzheimer's disease. Nuclear magnetic resonance and electron paramagnetic resonance spectroscopy show that the extracellular amino terminus of C99 includes a surface-embedded "N-helix" followed by a short "N-loop" connecting to the transmembrane domain (TMD). The TMD is a flexibly curved α helix, making it well suited for processive cleavage by γ-secretase. Titration of C99 reveals a binding site for cholesterol, providing mechanistic insight into how cholesterol promotes amyloidogenesis. Membrane-buried GXXXG motifs (G, Gly; X, any amino acid), which have an established role in oligomerization, were also shown to play a key role in cholesterol binding. The structure and cholesterol binding properties of C99 may aid in the design of Alzheimer's therapeutics.


    Organizational Affiliation

    Department of Biochemistry, Center for Structural Biology and Institute of Chemical Biology, Vanderbilt University School of Medicine, Nashville, TN 37232 USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
C99
A
122Homo sapiensMutation(s): 0 
Gene 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: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 30 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2LP1 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-06-06
    Type: Initial release
  • Version 1.1: 2012-06-20
    Type: Database references