Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report | Predict Membrane 

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 13.80 kDa 
• Atom Count: 348 
• Modelled Residue Count: 46 
• Deposited Residue Count: 122 
• Unique protein chains: 1

2LP1

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

• PDB DOI: 10.2210/pdb2LP1/pdb
• BMRB: 15775

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTMMemProtMD


• Deposited: 2012-01-30 Released: 2012-06-06 
• Deposition Author(s): Barrett, P.J., Song, Y., Van Horn, W.D., Hustedt, E.J., Schafer, J.M., Hadziselimovic, A., Beel, A.J., Sanders, C.R.

---

Experimental Data Snapshot

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

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

• PubMed: 22654059 
• DOI: 10.1126/science.1219988
• Primary Citation of Related Structures:  
  2LP1


• 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 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

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
C99	A	122	Homo sapiens	Mutation(s): 0  Gene Names: A4, AD1, APP Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P05067 (Homo sapiens) Explore P05067  Go to UniProtKB:  P05067
PHAROS:  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

Entry History 

Deposition Data

• Deposited Date: 2012-01-30 
• Released Date: 2012-06-06 
Deposition Author(s): Barrett, P.J., Song, Y., Van Horn, W.D., Hustedt, E.J., Schafer, J.M., Hadziselimovic, A., Beel, A.J., Sanders, C.R.

Revision History  

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