| Autor: |
Fleming, Graham R., Minagawa, Jun, Renger, Thomas, Schlau-Cohen, Gabriela S. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 9/14/2023, Vol. 159 Issue 10, p1-4, 4p |
| Abstrakt: |
Pandit[1] provides a review on the application of magic angle spinning nuclear magnetic resonance (NMR) spectroscopy and related techniques, with which it is possible to access the motion of proteins, pigments, and lipids on sub-nanoseconds to millisecond timescales on very different length scales ranging from solubilized complexes to whole cells. Remarkably, the spectral density includes 50 high-frequency vibrational modes per pigment, besides a low-frequency part characterizing the pigment-protein coupling. Using this technique, excitation energy transfer between the bacteriochlorophyll a pigments of the LH2 complex of purple bacteria is studied. Two important points dealt with in the present Special Topic issue on "Photosynthetic Light-Harvesting and Energy Conversion" are the following: (i) Pigment-protein complexes undergo conformational transitions on many different timescales that include transitions between functionally relevant modes of light harvesting and photoprotection. [Extracted from the article] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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