Preferred Conformations of Cyclic Ac-Cys-Pro-Xaa-Cys-NHMe Peptides: a Model for Chain Reversal and Active Site of Disulfide Oxidoreductase

  • Published : 2001.06.01

Abstract

The conformational study on cyclic Ac-Cys-Pro-Xaa-Cys-NHMe (Ac-CPXC-NHMe; X = Ala, Val, Leu, Aib, Gly, His, Phe, Tyr, Asn, and Ser) peptides has been carried out using the ECEPP/3 force field and the hydration shell model in the unhydrated and hydrated states. This work has been undertaken to investigate structural implications of the CPXC sequence as the chain reversal for the initiation of protein folding and as the motif for active site of disulfide oxidoreductases.(omitted)

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