Time domain versus energy domain neutron scattering analysis of protein dynamics
| Autor: | Wolfgang Doster |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Proceedings of the National Academy of Sciences. 116:8649-8650 |
| ISSN: | 1091-6490 0027-8424 |
| DOI: | 10.1073/pnas.1821562116 |
| Popis: | In PNAS, Kneller (1) suggests a quantum-theoretical justification of the “Frauenfelder energy landscape model” of protein dynamics applied to quasielastic neutron scattering (QENS) (2, 3). The diffusion-broadened QENS spectrum, centered at ω = 0, is explained (Fig. 1 and ref. 2) by a distribution of narrow inelastic lines centered at ω ≠ 0, reflecting energetic transitions between discrete states of a “complex” landscape. Elastic scattering at ω = 0 does not exist as a separate spectral component, contradicting standard scattering theory of spatially constrained motions (2) and most of the published literature (4). Kneller (1) rationalizes this picture by discrete quantum transitions within a Franck–Condon potential … [↵][1]1Email: wdoster{at}bioneutron.de. [1]: #xref-corresp-1-1 |
| Databáze: | OpenAIRE |
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