Twisted hyperboloid (Strophoid) as a model of beta-barrels in proteins.

  title={Twisted hyperboloid (Strophoid) as a model of beta-barrels in proteins.},
  author={J. A. Novotny and Robert E. Bruccoleri and John W. Newell},
  journal={Journal of molecular biology},
  volume={177 3},
Using a least-squares fitting procedure, polypeptide backbones of one parallel and seven antiparallel beta-barrels were approximated with various curved surfaces. Although the hyperboloid gave better approximations to all the beta-barrel backbones than the ellipsoid, elliptical cylinder or catenoid, the best approximations were obtained with a novel surface, a twisted hyperboloid (strophoid). The root-mean-square errors between individual beta-barrels and the fitted strophoid surfaces ranged… CONTINUE READING
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