Unified perspective on proteins: A physics approach
  We study a physical system which, while devoid of the complexity one usually associates with proteins, nevertheless displays a remarkable array of protein-like properties. The constructive hypothesis that this striking resemblance is not accidental leads not only to a unified framework for understanding protein folding, amyloid formation and protein interactions but also has implications for natural selection. 
Jayanth R. Banavar, Trinh Xuan Hoang, Amos Maritan, Flavio Seno,   Antonio Trovato