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 paramagnet ...