PGR5 proton gradient regulation 5 [Arabidopsis thaliana (thale cress)] - Gene

Summary

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Official Symbol: PGR5
Official Full Name: proton gradient regulation 5
Primary source: TAIR:AT2G05620
Locus tag: AT2G05620
See related: Araport:AT2G05620
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Arabidopsis thaliana (ecotype: Columbia)
Lineage: Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
Also known as: AtPGR5; proton gradient regulation 5; T20G20.3; T20G20_3
Summary: Involved in electron flow in Photosystem I. Essential for photoprotection.
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Genomic context

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See PGR5 in Genome Data Viewer

Location:: chromosome: 2

Exon count:: 2

Sequence:: Chromosome: 2; NC_003071.7 (2080647..2081859, complement)

Chromosome 2 - NC_003071.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_003071.7

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Enhanced Reduction of Ferredoxin in PGR5-Deficient Mutant of Arabidopsis thaliana Stimulated Ferredoxin-Dependent Cyclic Electron Flow around Photosystem I.
Title: Enhanced Reduction of Ferredoxin in PGR5-Deficient Mutant of Arabidopsis thaliana Stimulated Ferredoxin-Dependent Cyclic Electron Flow around Photosystem I.
Proton Gradient Regulation 5 is required to avoid photosynthetic oscillations during light transitions.
Title: Proton Gradient Regulation 5 is required to avoid photosynthetic oscillations during light transitions.
Identification of a Novel Mutation Exacerbated the PSI Photoinhibition in pgr5/pgrl1 Mutants; Caution for Overestimation of the Phenotypes in Arabidopsis pgr5-1 Mutant.
Title: Identification of a Novel Mutation Exacerbated the PSI Photoinhibition in pgr5/pgrl1 Mutants; Caution for Overestimation of the Phenotypes in Arabidopsis pgr5-1 Mutant.
PGRL2 triggers degradation of PGR5 in the absence of PGRL1.
Title: PGRL2 triggers degradation of PGR5 in the absence of PGRL1.
M-Type Thioredoxins Regulate the PGR5/PGRL1-Dependent Pathway by Forming a Disulfide-Linked Complex with PGRL1.
Title: M-Type Thioredoxins Regulate the PGR5/PGRL1-Dependent Pathway by Forming a Disulfide-Linked Complex with PGRL1.
The aim was to investigate whether the PGR5 (pgr5) and the type I NADH dehydrogenase (NDH-1) (ndho) systems protect photosystem I from excess electron stress.
Title: PGR5 and NDH-1 systems do not function as protective electron acceptors but mitigate the consequences of PSI inhibition.
PGR5 role in the photosystem I cyclic electron transport.
Title: PGR5-Dependent Cyclic Electron Flow Protects Photosystem I under Fluctuating Light at Donor and Acceptor Sides.
The results indicate that DeltapH formation is mostly due to linear electron flow (LEF), with the contributions of PGR5- and NDH-dependent cyclic electron flow (CEF) estimated as only ~30 and ~5%, respectively.
Title: Relative contributions of PGR5- and NDH-dependent photosystem I cyclic electron flow in the generation of a proton gradient in Arabidopsis chloroplasts.
PGR5-PGRL1-mediated cyclic electron transport plays a major role in DeltapH formation and induction of non-photochemical quenching.
Title: PGR5-PGRL1-Dependent Cyclic Electron Transport Modulates Linear Electron Transport Rate in Arabidopsis thaliana.
PGR5 is not involved in non-photochemical reduction of plastoquinone pool and state transitions in Arabidopsis thaliana.
Title: Antimycin A sensitive pathway independent from PGR5 cyclic electron transfer triggers non-photochemical reduction of PQ pool and state transitions in Arabidopsis thaliana.

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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NM_001335284.1

Supported by ESTs:

Gene Ontology Provided by TAIR

Function	Evidence Code	Pubs
enables electron transfer activity	IMP Inferred from Mutant Phenotype more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
acts_upstream_of_or_within cellular response to light intensity	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within photoprotection	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within photosynthetic electron transport in photosystem I	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within response to high light intensity	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within response to water deprivation	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in chloroplast	HDA more info	PubMed
located_in chloroplast	ISM Inferred from Sequence Model more info
located_in chloroplast thylakoid	HDA more info	PubMed
located_in chloroplast thylakoid	IDA Inferred from Direct Assay more info	PubMed
located_in chloroplast thylakoid membrane	HDA more info	PubMed

General protein information

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Preferred Names: proton gradient regulation 5

NP_001318202.1

proton gradient regulation 5 (PGR5); FUNCTIONS IN: electron carrier activity; INVOLVED IN: response to water deprivation, response to high light intensity, photosynthetic electron transport in photosystem I; LOCATED IN: chloroplast thylakoid membrane, chloroplast, chloroplast thylakoid; EXPRESSED IN: 30 plant structures; EXPRESSED DURING: 15 growth stages; Has 90 Blast hits to 90 proteins in 40 species: Archae - 0; Bacteria - 18; Metazoa - 0; Fungi - 0; Plants - 57; Viruses - 0; Other Eukaryotes - 15 (source: NCBI BLink).