Pyramidalization of backbone carbonyl carbon atoms in proteins.

  title={Pyramidalization of backbone carbonyl carbon atoms in proteins.},
  author={Luciana Esposito and Luigi Vitagliano and Adriana Zagari and Lelio Mazzarella},
  journal={Protein science : a publication of the Protein Society},
  volume={9 10},
The high accuracy of X-ray analyses at atomic resolution is now able to display subtle deformations from standard geometry of building blocks in proteins. From the analysis of nine ultra-high resolution protein structures, we derived the first experimental evidence that a significant pyramidalization at the main-chain carbonyl carbon atom occurs in proteins. Our findings also show that this pyramidalization is related to the main-chain psi torsion angle. The carbonyl carbon atoms of residues… CONTINUE READING

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