Differentiating helices: The direct observation of hydrogen bonds by 3hJN,C′ scalar couplings (see picture) is not only possible for alpha-helix and β-sheet peptides and proteins, but for 310-helical peptides as well. The method also provides information on terminal fraying of helices and allows the discrimination between alpha and 310 helices.
First Direct Observation of C=O···H-N Intramolecular Hydrogen Bonds in 3-10-Helical Peptides.
RAINALDI, MARIO;BELLANDA, MASSIMO;MAMMI, STEFANO;FORMAGGIO, FERNANDO;TONIOLO, CLAUDIO
2005
Abstract
Differentiating helices: The direct observation of hydrogen bonds by 3hJN,C′ scalar couplings (see picture) is not only possible for alpha-helix and β-sheet peptides and proteins, but for 310-helical peptides as well. The method also provides information on terminal fraying of helices and allows the discrimination between alpha and 310 helices.
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