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GoPubMed Proteins lists recent and important papers and reviews for proteins. Page last changed on 19 Aug 2016.


Involved in electron flow in Photosystem I. Essential for photoprotection. (from NCBI)
Top mentioned proteins: Presenilin-1, V1a, CAN, oxidoreductase, Chl
Papers on pgr5
The antimycin A-sensitive pathway of cyclic electron flow: from 1963 to 2015.
Leister et al., München, Germany. In Photosynth Res, Feb 2016
In 2013, antimycin A was used to identify the PGRL1/PGR5 complex as the ferredoxin:plastoquinone reductase completing the last puzzle piece of this pathway.
PGR5-PGRL1-dependent cyclic electron transport modulates linear electron transport rate in Arabidopsis thaliana.
Pesaresi et al., Turku, Finland. In Mol Plant, Jan 2016
To identify the molecular origin of such a high capacity CET, we constructed three sextuple mutants lacking the qE component of NPQ (Δ5 npq4-1), NDH-mediated CET (Δ5 crr4-3) or PGR5-PGRL1-mediated CET (Δ5 pgr5).
Exceptional reduction of the plastid genome of saguaro cactus (Carnegiea gigantea): Loss of the ndh gene suite and inverted repeat.
Wojciechowski et al., Tucson, United States. In Am J Bot, Jul 2015
However, nuclear pgr5, which functions in a partially redundant pathway, was intact.•
Plants Actively Avoid State Transitions upon Changes in Light Intensity: Role of Light-Harvesting Complex II Protein Dephosphorylation in High Light.
Tikkanen et al., Turku, Finland. In Plant Physiol, Jun 2015
Moreover, proton gradient regulation5 (PGR5) is required for proper regulation of thylakoid protein kinases and phosphatases, and the pgr5 mutant mimics phenotypes of tap38/pph1.
Photoprotection of photosystems in fluctuating light intensities.
Aro et al., Turku, Finland. In J Exp Bot, May 2015
In particular, the PGR5 protein controls electron flow during sudden changes in light intensity by allowing the regulation mostly via the Cytochrome b6f complex.
Deletion of Proton Gradient Regulation 5 (PGR5) and PGR5-Like 1 (PGRL1) proteins promote sustainable light-driven hydrogen production in Chlamydomonas reinhardtii due to increased PSII activity under sulfur deprivation.
Hippler et al., Münster, Germany. In Front Plant Sci, 2014
Continuous hydrogen photo-production under sulfur deprivation was studied in the Chlamydomonas reinhardtii pgr5 pgrl1 double mutant and respective single mutants.
Partially dissecting the steady-state electron fluxes in Photosystem I in wild-type and pgr5 and ndh mutants of Arabidopsis.
Chow et al., China. In Front Plant Sci, 2014
ΔFlux = ETR1 - LEFO2 is an upper estimate of CEF, which consists of two components, an antimycin A-sensitive, PGR5 (proton gradient regulation 5 protein)-dependent component and an insensitive component facilitated by a chloroplastic nicotinamide adenine dinucleotide dehydrogenase-like complex (NDH).
The Effects of Cold Stress on Photosynthesis in Hibiscus Plants.
Quiles et al., Murcia, Spain. In Plos One, 2014
Additionally, when the whole plant was cooled, both the activity of electron donation by NADPH and ferredoxin to plastoquinone and the amount of PGR5 polypeptide, an essential component of the cyclic electron flow around PSI, increased, suggesting that in these conditions cyclic electron flow helps protect photosystems.
Electron flow from PSII to PSI under high light is controlled by PGR5 but not by PSBS.
Aro et al., Turku, Finland. In Front Plant Sci, 2014
Absence of the Proton Gradient Regulation 5 (PGR5) protein from plant chloroplasts prevents the induction of strong trans-thylakoid proton gradient (ΔpH) and consequently also the thermal dissipation of excess energy (NPQ).
Structure and dynamics of thylakoids in land plants.
Leister et al., Martinsried, Germany. In J Exp Bot, 2014
Protein complexes predominantly located in the stroma lamellae and grana end membranes are either bulky [photosystem I (PSI) and the chloroplast ATP synthase (cpATPase)] or are involved in cyclic electron flow [the NAD(P)H dehydrogenase (NDH) and PGRL1-PGR5 heterodimers], whereas photosystem II (PSII) and its light-harvesting complex (LHCII) are found in the appressed membranes of the granum.
Central role of cyclic electron transport around photosystem I in the regulation of photosynthesis.
Shikanai, Kyoto, Japan. In Curr Opin Biotechnol, 2014
In angiosperms, electron transport consists of a PGR5-PGRL1 protein-dependent pathway and a chloroplast NADH dehydrogenase-like complex-dependent pathway.
Chloroplast evolution, structure and functions.
Leister et al., Frederiksberg, Denmark. In F1000prime Rep, 2013
We also present an updated inventory of photosynthetic proteins and the factors involved in the assembly of thylakoid multiprotein complexes, and evaluate findings that reveal that cyclic electron flow involves NADPH dehydrogenase (NDH)- and PGRL1/PGR5-dependent pathways, both of which receive electrons from ferredoxin.
PGR5 ensures photosynthetic control to safeguard photosystem I under fluctuating light conditions.
Aro et al., Turku, Finland. In Plant Signal Behav, 2013
The PGR5 protein was recently shown to play an indispensable role in this protective mechanism.
Conserved role of proton gradient regulation 5 in the regulation of PSI cyclic electron transport.
Covert et al., Athens, United States. In Planta, 2008
PGR5 has a developmentally-regulated, conserved role in mediating cyclic electron transport.
Effect of PGR5 impairment on photosynthesis and growth in Arabidopsis thaliana.
Peltier et al., Marseille, France. In Plant Cell Physiol, 2008
PGR5 mutants show a reduction of photosynthesis and growth, which results from ATP deficiency and inactivation of PSI.
Characterization of factors affecting the activity of photosystem I cyclic electron transport in chloroplasts.
Shikanai et al., Fukuoka, Japan. In Plant Cell Physiol, 2008
These results suggest that the rate of PGR5-dependent photosystem I cyclic electron transport is high enough to balance the production ratio of ATP and NADPH during steady-state photosynthesis, consistently with the pgr5 mutant phenotype.
A complex containing PGRL1 and PGR5 is involved in the switch between linear and cyclic electron flow in Arabidopsis.
Leister et al., München, Germany. In Cell, 2008
A complex containing PGRL1 and PGR5 is involved in the switch between linear and cyclic electron flow in Arabidopsis.
A balanced PGR5 level is required for chloroplast development and optimum operation of cyclic electron transport around photosystem I.
Shikanai et al., Fukuoka, Japan. In Plant Cell Physiol, 2007
This study suggested that a balanced PGR5 level is required for efficient regulation of the rate of antimycin A-sensitive photosystem I cyclic electron transport.
PGR5 is involved in cyclic electron flow around photosystem I and is essential for photoprotection in Arabidopsis.
Shikanai et al., Ikoma, Japan. In Cell, 2002
We isolated an Arabidopsis mutant, pgr5 (proton gradient regulation), in which downregulation of photosystem II photochemistry in response to intense light was impaired.
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