Solvent effects on the excited-state processes of protochlorophyllide: a femtosecond time-resolved absorption study

The Journal of Physical Chemistry. B
Benjamin DietzekMichael Schmitt

Abstract

The excited-state dynamics of protochlorophyllide a, a porphyrin-like compound and, as substrate of the NADPH/protochlorophyllide oxidoreductase, a precursor of chlorophyll biosynthesis, is studied by femtosecond absorption spectroscopy in a variety of solvents, which were chosen to mimic different environmental conditions in the oxidoreductase complex. In the polar solvents methanol and acetonitrile, the excited-state dynamics differs significantly from that in the nonpolar solvent cyclohexane. In methanol and acetonitrile, the relaxation dynamics is multiexponential with three distinguishable time scales of 4.0-4.5 ps for vibrational relaxation and vibrational energy redistribution of the initially excited S1 state, 22-27 ps for the formation of an intermediate state, most likely with a charge transfer character, and 200 ps for the decay of this intermediate state back to the ground state. In the nonpolar solvent cyclohexane, only the 4.5 ps relaxational process can be observed, whereas the intermediate intramolecular charge transfer state is not populated any longer. In addition to polarity, solvent viscosity also affects the excited-state processes. Upon increasing the viscosity by adding up to 60% glycerol to a methanolic ...Continue Reading

References

Jan 1, 1997·Annual Review of Genetics·J Y SuzukiC E Bauer
May 6, 2003·Nature Structural Biology·Derren J HeyesMarie Louise Groot
Jan 28, 2004·Photochemistry and Photobiology·Benoît Schoefs, Fabrice Franck

❮ Previous
Next ❯

Citations

Dec 22, 2010·The Journal of Physical Chemistry. a·Olga A SytinaMarie Louise Groot
Oct 24, 2009·The Journal of Biological Chemistry·Binuraj R K MenonDerren J Heyes
Jul 26, 2013·The Journal of Chemical Physics·Daisuke KosumiHideki Hashimoto
Mar 26, 2013·Biophysical Chemistry·Beata Mysliwa-KurdzielKazimierz Strzałka
Oct 16, 2008·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Benjamin DietzekJürgen Popp
Jul 15, 2006·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Benjamin DietzekMichael Schmitt
Mar 17, 2012·Macromolecular Rapid Communications·Ronald SiebertBenjamin Dietzek
Dec 31, 2010·Biophysical Journal·Miriam Colindres-RojasRolf Diller
Dec 25, 2012·Biochimica Et Biophysica Acta·Beata Mysliwa-KurdzielKazimierz Strzałka
Jun 11, 2016·Journal of Photochemistry and Photobiology. B, Biology·Binuraj R K MenonDerren J Heyes
Jun 18, 2011·The Journal of Physical Chemistry. a·Robert HanfJürgen Popp
Jan 25, 2017·The Journal of Physical Chemistry. B·Derren J HeyesNigel S Scrutton
Mar 1, 2017·The Journal of Physical Chemistry Letters·Guillem Brandariz-de-PedroAlistair J Fielding
Mar 16, 2012·Physical Chemistry Chemical Physics : PCCP·Nigel S ScruttonDerren J Heyes
Dec 17, 2008·The Journal of Biological Chemistry·Derren J HeyesNigel S Scrutton
Aug 7, 2020·Photochemistry and Photobiology·Masahiko Taniguchi, Jonathan S Lindsey
Jan 25, 2021·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Aleksei M Zheltikov
Mar 10, 2021·Nature Plants·Derren J HeyesNigel S Scrutton
May 18, 2021·Frontiers in Plant Science·Katalin Solymosi, Beata Mysliwa-Kurdziel
Jul 13, 2018·The Journal of Physical Chemistry. B·Samira GholamiMarco Garavelli

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

© 2021 Meta ULC. All rights reserved