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Title: On improving the performance of nonphotochemical quenching in CP29 light-harvesting antenna complex

Journal Article · · Physics Letters. A
 [1]; ORCiD logo [2];  [3];  [4]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
  2. CUCEI, Universidad de Guadalajara (Mexico). Departamento de Física
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Biological Division
  4. University of Hawaii at Manoa, Honolulu, HI (United States). Department of Information and Computer Sciences, and Department of Physics and Astronomy

In this study, we model and simulate the performance of charge-transfer in nonphotochemical quenching (NPQ) in the CP29 light-harvesting antenna-complex associated with photosystem II (PSII). The model consists of five discrete excitonic energy states and two sinks, responsible for the potentially damaging processes and charge-transfer channels, respectively. We demonstrate that by varying (i) the parameters of the chlorophyll-based dimer, (ii) the resonant properties of the protein-solvent environment interaction, and (iii) the energy transfer rates to the sinks, one can significantly improve the performance of the NPQ. In conclusion, our analysis suggests strategies for improving the performance of the NPQ in response to environmental changes, and may stimulate experimental verification.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1337092
Alternate ID(s):
OSTI ID: 1347253
Report Number(s):
LA-UR-15-29294
Journal Information:
Physics Letters. A, Vol. 380, Issue 13; ISSN 0375-9601
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

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