NPQ1 non-photochemical quenching 1 [Arabidopsis thaliana (thale cress)] - Gene

Summary

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Official Symbol: NPQ1
Official Full Name: non-photochemical quenching 1
Primary source: TAIR:AT1G08550
Locus tag: AT1G08550
See related: Araport:AT1G08550
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: ARABIDOPSIS VIOLAXANTHIN DE-EPOXIDASE 1; AVDE1; F22O13.3; F22O13_3; non-photochemical quenching 1; VIOLAXANTHIN DE-EPOXIDASE PRECURSOR
Summary: Violaxanthin deepoxidase involved in xanthophyll cycle.Two major consequences of the npq1 mutation are the absence of zeaxanthin formation in strong light and the partial inhibition of the quenching of singlet excited chlorophylls in the photosystem II light-harvesting complex
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Genomic context

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See NPQ1 in Genome Data Viewer

Location:: chromosome: 1

Exon count:: 5

Sequence:: Chromosome: 1; NC_003070.9 (2706868..2709988)

Chromosome 1 - NC_003070.9 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_003070.9

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Under a gradually increasing light intensity, where pNPQ is allowed to develop, it is only the amplitude of pNPQ which is the determining factor for protection. Npq1 and npq4 mutants are equally protected against photodamage, but less protected than WT plants.[Npq1]
Title: Comparison of the protective effectiveness of NPQ in Arabidopsis plants deficient in PsbS protein and zeaxanthin.
importance of disulfide bonds for violaxanthin de-epoxidase
Title: Protein redox regulation in the thylakoid lumen: the importance of disulfide bonds for violaxanthin de-epoxidase.
eIFiso4G expression is required to regulate violaxanthin de-epoxidase expression and to support photosynthetic activity.
Title: Eukaryotic translation initiation factor eIFiso4G is required to regulate violaxanthin De-epoxidase expression in Arabidopsis.
Four amino acid residues (D98, D117, H168 and D206) are critical for pH-dependent activation of violaxanthin de-epoxidase from Arabidopsis thaliana.
Title: Identification of key residues for pH dependent activation of violaxanthin de-epoxidase from Arabidopsis thaliana.
Data determined the structures of the central lipocalin domain of VDE (VDEcd). At neutral pH, VDEcd is monomeric with its active site occluded within a lipocalin barrel. Upon acidification, the barrel opens up and the enzyme appears as a dimer.
Title: A structural basis for the pH-dependent xanthophyll cycle in Arabidopsis thaliana.
The phosphorylation of LHC II proteins in the leaves of npq1-2 and npq4-1 mutants of A. thaliana is reported.
Title: LHC II protein phosphorylation in leaves of Arabidopsis thaliana mutants deficient in non-photochemical quenching.
The action spectrum of photoinhibition in vivo from wild-type Arabidopsis thaliana L. and from the npq1-2 and npq4-1 mutants defective in non-photochemical quenching (NPQ) of excitations of the Photosytem II antenna, was measured.
Title: Action spectrum of photoinhibition in leaves of wild type and npq1-2 and npq4-1 mutants of Arabidopsis thaliana.

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Pathways from PubChem

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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_001035923.3

Supported by ESTs:

NM_100728.4

Supported by ESTs:

Gene Ontology Provided by TAIR

Function	Evidence Code	Pubs
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables violaxanthin de-epoxidase activity	IMP Inferred from Mutant Phenotype more info	PubMed

Process	Evidence Code	Pubs
acts_upstream_of_or_within chlorophyll metabolic process	IGI Inferred from Genetic Interaction more info	PubMed
acts_upstream_of_or_within fatty acid metabolic process	IGI Inferred from Genetic Interaction more info	PubMed
acts_upstream_of_or_within response to heat	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within xanthophyll cycle	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within xanthophyll metabolic process	TAS Traceable Author Statement more info	PubMed

Component	Evidence Code	Pubs
located_in chloroplast	HDA more info	PubMed
located_in chloroplast	ISM Inferred from Sequence Model more info
part_of chloroplast photosystem II	TAS Traceable Author Statement more info	PubMed
located_in chloroplast thylakoid	HDA more info	PubMed
located_in chloroplast thylakoid lumen	HDA more info	PubMed
located_in cytosol	HDA more info	PubMed
located_in extracellular region	HDA more info	PubMed
located_in thylakoid lumen	HDA more info	PubMed

General protein information

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Preferred Names: non-photochemical quenching 1

NP_001031000.1

non-photochemical quenching 1 (NPQ1); FUNCTIONS IN: violaxanthin de-epoxidase activity; INVOLVED IN: fatty acid metabolic process, response to heat, chlorophyll metabolic process, xanthophyll metabolic process, xanthophyll cycle; LOCATED IN: chloroplast thylakoid lumen, chloroplast photosystem II, chloroplast; EXPRESSED IN: 22 plant structures; EXPRESSED DURING: 14 growth stages; CONTAINS InterPro DOMAIN/s: Lipocalin conserved site (InterPro:IPR022272), Calycin (InterPro:IPR012674), Violaxanthin de-epoxidase (InterPro:IPR010788), Calycin-like (InterPro:IPR011038); BEST Arabidopsis thaliana protein match is: violaxanthin de-epoxidase-related (TAIR:AT2G21860.1); Has 35333 Blast hits to 34131 proteins in 2444 species: Archae - 798; Bacteria - 22429; Metazoa - 974; Fungi - 991; Plants - 531; Viruses - 0; Other Eukaryotes - 9610 (source: NCBI BLink).

NP_172331.1

non-photochemical quenching 1 (NPQ1); FUNCTIONS IN: violaxanthin de-epoxidase activity; INVOLVED IN: fatty acid metabolic process, response to heat, chlorophyll metabolic process, xanthophyll metabolic process, xanthophyll cycle; LOCATED IN: thylakoid lumen, chloroplast thylakoid lumen, chloroplast photosystem II, chloroplast; EXPRESSED IN: 22 plant structures; EXPRESSED DURING: 14 growth stages; CONTAINS InterPro DOMAIN/s: Lipocalin conserved site (InterPro:IPR022272), Calycin (InterPro:IPR012674), Violaxanthin de-epoxidase (InterPro:IPR010788), Calycin-like (InterPro:IPR011038); BEST Arabidopsis thaliana protein match is: violaxanthin de-epoxidase-related (TAIR:AT2G21860.1); Has 258 Blast hits to 254 proteins in 55 species: Archae - 0; Bacteria - 9; Metazoa - 2; Fungi - 0; Plants - 212; Viruses - 0; Other Eukaryotes - 35 (source: NCBI BLink).