Hydrogen bonds are a primary driving force for de novo protein folding

Lee, S.; Wang, C.; Liu, H.; Xiong, J.; Jiji, R.; Hong, X.; Yan, X.; Chen, Z.; Hammel, M.; Wang, Y.; Dai, S.; Wang, J.; Jiang, C.; Zhang, G.

doi:10.1107/S2059798317015303

Acta Crystallographica Section D
Acta Crystallographica
Section D STRUCTURAL BIOLOGY

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Figure 5
(a) Resonance at the amide under high-pH conditions leads to electric dipole formation. Electric dipole formation after the attack by OH⁻. (b) Resonance at the amide of Ac-GGGG under different pH conditions. The wavenumber representing amide I decreases from 1661 to 1656 cm⁻¹ as the pH increases, reflecting elongation of the carbonyl double bond. The increase in the wavenumber peak of amide III from 1306 to 1309 cm⁻¹ may reflect a shortening of the bond between the amide C and N atoms.

STRUCTURAL
BIOLOGY

ISSN: 2059-7983

Volume 73| Part 12| December 2017| Pages 955-969

https://doi.org/10.1107/S2059798317015303

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