Abstract
Amino acids of the general form, 1, are the monomeric molecules which are condensed to form the polypeptide chains of the fibrous and globular proteins. The naturally occurring molecules are the L-enantiomers, shown in 1; for chemical formulae see Fig. 19.1. D-amino acids can be synthesized and the individual L- or D-amino acids or the D,L-racemates can be crystallized. All the common amino acids have been studied by neutron or X-ray crystal structure analysis (see Table 14.1), in the anhydrous or hydrate forms, as hydrochlorides or hydrochloride hydrates.
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© 1994 Springer-Verlag Berlin Heidelberg
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Jeffrey, G.A., Saenger, W. (1994). Hydrogen Bonding in Amino Acids and Peptides: Predominance of Zwitterions. In: Hydrogen Bonding in Biological Structures. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-85135-3_14
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DOI: https://doi.org/10.1007/978-3-642-85135-3_14
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-57903-8
Online ISBN: 978-3-642-85135-3
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