Impact of Single-Point Mutations on the Excitonic Structure and Dynamics in a Fenna–Matthews–Olson Complex

Khmelnitskiy, Anton; Reinot, Tonu; Jankowiak, Ryszard

doi:10.1021/acs.jpclett.8b01396

Impact of Single-Point Mutations on the Excitonic Structure and Dynamics in a Fenna–Matthews–Olson Complex

Journal Article · Mon Jun 04 00:00:00 EDT 2018 · Journal of Physical Chemistry Letters

DOI:https://doi.org/10.1021/acs.jpclett.8b01396· OSTI ID:1539328

Khmelnitskiy, Anton ^[1]; Reinot, Tonu ^[2]; ^[2]

Kansas State Univ., Manhattan, KS (United States); Kansas State University
Kansas State Univ., Manhattan, KS (United States)

The Fenna-Matthews-Olson (FMO) antenna complex from the green sulfur bacterium Chlorobaculum (C.) tepidum is an important model protein to study exciton dynamics and excitation energy transfer in photosynthetic complexes. Single point mutations provide an excellent opportunity for the study of exciton structure and interexciton level relaxation. In this bacterium, the energy harvested by chlorosomes is funnelled via the baseplate pigments and FMO trimers to the reaction center (RC), where photochemistry takes place. The structure of the FMO protein from C. tepidum was solved and revealed a homotrimeric complex containing eight bacteriochlorophylls (BChl) a per monomer.

View Accepted Manuscript (DOE)

Research Organization:: Kansas State Univ., Manhattan, KS (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: SC0006678

OSTI ID:: 1539328

Journal Information:: Journal of Physical Chemistry Letters, Journal Name: Journal of Physical Chemistry Letters Journal Issue: 12 Vol. 9; ISSN 1948-7185

Publisher:: American Chemical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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