Abstract

In the first part of this talk, I will discuss the need for a paradigm shift from hydrophobic (HφO) to a hydrophilic ((HφI) based theory of protein folding. Next, I will discuss the various types of solvent-induced forces that are exerted on various groups on the protein. It is argued, both theoretically and by simulations, that the HφI–HφI solvent-induced forces are likely to be the strongest. Therefore, it is suggested that these forces are also the forces that force the protein to fold, in a short time, along a narrow range of pathways. This paradigm shift also answers Levinthal’s question about the factors that “speed” and “guide” the folding of proteins.

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