Pi-pi interactions: the geometry and energetics of phenylalanine-phenylalanine interactions in proteins.

@article{Hunter1991PipiIT,
  title={Pi-pi interactions: the geometry and energetics of phenylalanine-phenylalanine interactions in proteins.},
  author={Christopher A. Hunter and Juswinder Singh and Janet M. Thornton},
  journal={Journal of molecular biology},
  year={1991},
  volume={218 4},
  pages={837-46}
}
The geometries of aromatic-aromatic interactions between phenylalanine residues in proteins are analysed in detail and correlated with energy calculations. A new definition of the interplanar angle is important for distinguishing favourable edge-to-face and unfavourable face-to-face orientations. The experimental observations are scattered over a wide range of conformational space, with no strongly preferred single orientation. However, Phe-Phe interactions occur almost exclusively in… CONTINUE READING

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