PMID: 8943085Nov 26, 1996Paper

Identification of proton-active residues in a higher plant light-harvesting complex

Proceedings of the National Academy of Sciences of the United States of America
Robin G WaltersPeter Horton

Abstract

The thermal dissipation of absorbed light energy by the light-harvesting apparatus of higher plants is important in protecting the photosynthetic machinery from the effects of excess illumination. A major mechanism for such photoprotection, known as trans-thylakoid delta pH-dependent chlorophyll fluorescence quenching (qE), is induced by acidification of the lumen, is correlated with the interconversion of xanthophyll pigments, and is manifested as quenching of chloropyll fluorescence. The mechanistic basis for qE remains unknown. The reagent N, N'-dicyclohexylcarbodiimide (DCCD) specifically inhibits qE and covalently binds to two minor light-harvesting pigment-protein complexes (LHCII), LHCIIa and LHCIIc. It is shown that DCCD treatment of isolated LHCIIc complexes reverses acid-induced chlorophyll fluorescence quenching in an in vitro system. Fingerprinting of [14C]DCCD-labeled LHCIIc demonstrates that there are two DCCD-sensitive amino acid residues on this complex, and these are shown to be glutamate residues, each of which is located near the lumen. In view of the effects of DCCD on the pattern of proton release from photosystem II during photosynthesis, we propose a model for the mechanism of the induction of qE--that th...Continue Reading

References

Oct 1, 1992·Journal of Bioenergetics and Biomembranes·K Garlid
Feb 15, 1992·European Journal of Biochemistry·R Bassi, P Dainese
Oct 3, 1994·FEBS Letters·A R Crofts, C T Yerkes
Feb 8, 1994·Biochimica Et Biophysica Acta·S Jansson
Jun 1, 1993·Journal of Bioenergetics and Biomembranes·D S Beattie
Jun 1, 1996·Annual Review of Plant Physiology and Plant Molecular Biology·P. HortonR. G. Walters

❮ Previous
Next ❯

Citations

Aug 10, 2006·Planta·Ljudmila KalituhoPeter Jahns
Jun 25, 2013·Photosynthesis Research·Julia ZaksGraham R Fleming
May 19, 2010·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Pooja Singh-RawalSudhakar Bharti
Aug 15, 2012·Proceedings of the National Academy of Sciences of the United States of America·Julia ZaksGraham R Fleming
Apr 9, 2011·The Journal of Biological Chemistry·Matthew P Johnson, Alexander V Ruban
Aug 13, 2002·The Plant Cell·Dafna ElradArthur R Grossman
Jul 20, 2010·Biochemistry. Biokhimii︠a︡·V K OpanasenkoI A Naydov
Mar 12, 2004·Annual Review of Plant Physiology and Plant Molecular Biology·Krishna K. Niyogi
Nov 12, 2013·Journal of Bioenergetics and Biomembranes·Koel SenMaitrayee DasGupta
Mar 5, 2014·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Khalid AlsharafaKarl-Josef Dietz
Oct 15, 2013·Trends in Plant Science·Mikko Tikkanen, Eva-Mari Aro
Oct 28, 1998·Proceedings of the National Academy of Sciences of the United States of America·B J PogsonD DellaPenna
Sep 26, 2015·Journal of Photochemistry and Photobiology. B, Biology·Christopher D P Duffy, Alexander V Ruban
Oct 22, 2009·The Plant Journal : for Cell and Molecular Biology·Matthew P Johnson, Alexander V Ruban
Feb 21, 2006·Journal of Photochemistry and Photobiology. B, Biology·Heiko WagnerChristian Wilhelm
May 17, 2011·Biochimica Et Biophysica Acta·Alexander V RubanChristopher D P Duffy
Jun 11, 2009·Communicative & Integrative Biology·Alexander V Ruban
Feb 11, 2015·Journal of Plant Physiology·Theodoros TsiavosKiriakos Kotzabasis
Jun 28, 2011·Biochimica Et Biophysica Acta·Matteo BallottariRoberto Bassi
Jul 21, 2016·Biochimica Et Biophysica Acta·Nikolaos E IoannidisVangelis Daskalakis
Mar 23, 2004·The Journal of Biological Chemistry·Xiao-Ping LiKrishna K Niyogi
Dec 29, 2000·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·P HortonM Wentworth
Dec 29, 2000·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·B J Pogson, H M Rissler
Jul 13, 2002·The Journal of Biological Chemistry·Tomas MorosinottoRoberto Bassi
Apr 6, 2002·The Journal of Biological Chemistry·Paola DominiciRoberto Bassi
Apr 9, 2020·Photosynthesis Research·Krzysztof PawlakAlfred R Holzwarth

❮ 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.