Stereochemical Criteria for Polypeptides and Proteins

@inproceedings{Venkatachalam2002StereochemicalCF,
  title={Stereochemical Criteria for Polypeptides and Proteins},
  author={C. M. Venkatachalam},
  year={2002}
}
This paper describes calculations on the packing energy in the crystal st ructures of/5-forms of polyglycine and poly-L-alanine. It is shown that the non-bonded interactions between fl-chains, in a pleated sheet structure, yields a minimum energy when the interchain spacing is about 4.8 A, which is well-suited for the formation of interchain NH. • • O hydrogen bonding. The attempts made to deduce the crystal structures of/5-forms of polyglycine and poly-L-alanine are also described. 
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