Abstract
Impact of single point mutations on the excitonic structure and dynamics in FMO complex
Highlights
In this work we focus on two mutants: 1) V152N (here mutation occurs near BChl 1, i.e. valine is replaced by asparagine); and 2) W184F (where tryptophan 184 near BChl 6 is replaced with phenylalanine)
In this work we focus on two mutants: 1) V152N; and 2) W184F
Spectra a and b are the absorption spectra obtained at 4 K for typical wild type (WT) Fenna Matthews Olson (FMO), V152N (Frame A) and W16F (Frame C) mutant samples respectively
Summary
In this work we focus on two mutants: 1) V152N (here mutation occurs near BChl 1, i.e. valine is replaced by asparagine); and 2) W184F (where tryptophan 184 near BChl 6 is replaced with phenylalanine). In order to obtain information on the excited state lifetimes (T1) and interexciton level relaxation in the mutants we measured low temperature absorption/emission spectra and performed high-resolution resonant HB experiments.
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