Excitation dynamics in Phycoerythrin 545: modeling of steady-state spectra and transient absorption with modified Redfield theory.

Biophysical Journal
Vladimir I NovoderezhkinRienk van Grondelle

Abstract

We model the spectra and excitation dynamics in the phycobiliprotein antenna complex PE545 isolated from the unicellular photosynthetic cryptophyte algae Rhodomonas CS24. The excitonic couplings between the eight bilins are calculated using the CIS/6-31G method. The site energies are extracted from a simultaneous fit of the absorption, circular dichroism, fluorescence, and excitation anisotropy spectra together with the transient absorption kinetics using the modified Redfield approach. Quantitative fit of the data enables us to assign the eight exciton components of the spectra and build up the energy transfer picture including pathways and timescales of energy relaxation, thus allowing a visualization of excitation dynamics within the complex.

References

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Citations

Jan 10, 2014·Nature Communications·Edward J O'Reilly, Alexandra Olaya-Castro
Dec 20, 2013·Journal of the Royal Society, Interface·Francesca FassioliGregory D Scholes
Jan 21, 2012·The Journal of Chemical Physics·Hoda Hossein-NejadGregory D Scholes
Nov 14, 2012·The Journal of Chemical Physics·Avinash KolliAlexandra Olaya-Castro
Jul 1, 2014·Proceedings of the National Academy of Sciences of the United States of America·Stephen J HarropPaul M G Curmi
Mar 10, 2016·Chemical Reviews·Carles Curutchet, Benedetta Mennucci
Apr 24, 2015·The Journal of Chemical Physics·Andrius GelzinisLeonas Valkunas
Aug 17, 2011·Biophysical Journal·Alessandro MarinRienk van Grondelle
Nov 5, 2016·The Journal of Physical Chemistry. B·Suryanarayanan ChandrasekaranUlrich Kleinekathöfer
Nov 9, 2016·The Journal of Chemical Physics·Ivo H M van StokkumPavel Malý
Jan 24, 2017·The Journal of Physical Chemistry. B·Mortaza AghtarBenedetta Mennucci
May 19, 2017·Journal of the American Chemical Society·Mi Kyung LeeDavid F Coker
Mar 24, 2015·Physical Chemistry Chemical Physics : PCCP·Cathal SmythGregory D Scholes
Aug 15, 2018·Physical Chemistry Chemical Physics : PCCP·Marina CorbellaCarles Curutchet
May 8, 2019·Faraday Discussions·Stefan Siwiak-Jaszek, Alexandra Olaya-Castro
Mar 1, 2012·Physical Chemistry Chemical Physics : PCCP·Daniel B TurnerGregory D Scholes
Jul 1, 2014·Physical Chemistry Chemical Physics : PCCP·Lucas VianiBenedetta Mennucci
Jan 31, 2012·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Carolin König, Johannes Neugebauer
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Feb 17, 2011·Journal of the American Chemical Society·Carles CurutchetBenedetta Mennucci
Oct 10, 2014·The Journal of Physical Chemistry. B·Xuan Leng, Xian-Ting Liang
Sep 21, 2012·The Journal of Physical Chemistry. B·Carles CurutchetBenedetta Mennucci
Feb 7, 2013·The Journal of Physical Chemistry Letters·Lucas VianiBenedetta Mennucci
Aug 16, 2015·The Journal of Physical Chemistry Letters·Mortaza AghtarUlrich Kleinekathöfer
Jan 22, 2011·The Journal of Physical Chemistry. B·Hoda Hossein-NejadGregory D Scholes
Nov 1, 2012·The Journal of Physical Chemistry Letters·Francesca FassioliGregory D Scholes
Jul 6, 2019·Chemical Reviews·Francesco SegattaBenedetta Mennucci

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