The polyproline II conformation in short alanine peptides is noncooperative.

Abstract

The finding that short alanine peptides possess a high fraction of polyproline II (PII) structure (Phi=-75 degrees, Psi=+145 degrees ) at low temperature has broad implications for unfolded states of proteins. An important question concerns whether or not this structure is locally determined or cooperative. We have monitored the conformation of alanine in a… (More)

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@article{Chen2004ThePI, title={The polyproline II conformation in short alanine peptides is noncooperative.}, author={Kang Chen and Zhigang Liu and Neville R. Kallenbach}, journal={Proceedings of the National Academy of Sciences of the United States of America}, year={2004}, volume={101 43}, pages={15352-7} }