PSY PHYTOENE SYNTHASE [Arabidopsis thaliana (thale cress)] - Gene

Summary

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Official Symbol: PSY
Official Full Name: PHYTOENE SYNTHASE
Primary source: TAIR:AT5G17230
Locus tag: AT5G17230
See related: Araport:AT5G17230
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: PHYTOENE SYNTHASE
Summary: Encodes phytoene synthase.
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Genomic context

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See PSY in Genome Data Viewer

Location:: chromosome: 5

Exon count:: 9

Sequence:: Chromosome: 5; NC_003076.8 (5659554..5662997, complement)

Chromosome 5 - NC_003076.8 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_003076.8

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Arabidopsis FIBRILLIN6 influences carotenoid biosynthesis by directly promoting phytoene synthase activity.
Title: Arabidopsis FIBRILLIN6 influences carotenoid biosynthesis by directly promoting phytoene synthase activity.
the long 5'UTR of alternative splice variant 1 of AtPSY is capable of attenuating the translational activity in response to high carotenoid pathway fluxes.
Title: Carotenogenesis Is Regulated by 5'UTR-Mediated Translation of Phytoene Synthase Splice Variants.
The results suggest that organ-specific pathways regulate PSY expression and hence carotenoid production in response to different environmental cues.
Title: Light-sensitive Phytochrome-Interacting Factors (PIFs) are not required to regulate phytoene synthase gene expression in the root.
These findings reveal a novel mechanism by which carotenoid biosynthesis is controlled via posttranscriptional regulation of PSY in plants.
Title: Arabidopsis OR proteins are the major posttranscriptional regulators of phytoene synthase in controlling carotenoid biosynthesis.
PIF1 and other PIFs have roles in transducing light signals to regulate PSY gene expression and carotenoid accumulation during daily cycles of light and dark in mature plants
Title: Direct regulation of phytoene synthase gene expression and carotenoid biosynthesis by phytochrome-interacting factors.
increased production of carotenoids in the dark correlates with an upregulated activity of phytoene synthase
Title: Phytoene synthase activity controls the biosynthesis of carotenoids and the supply of their metabolic precursors in dark-grown Arabidopsis seedlings.

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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_001036818.2

Supported by ESTs:

NM_001343483.1

Supported by ESTs:

NM_001343484.1

Supported by ESTs:

NM_121729.3

Supported by ESTs:

Gene Ontology Provided by TAIR

Function	Evidence Code	Pubs
enables 15-cis-phytoene synthase activity	TAS Traceable Author Statement more info	PubMed
enables farnesyltranstransferase activity	IEA Inferred from Electronic Annotation more info
enables geranylgeranyl-diphosphate geranylgeranyltransferase activity	IDA Inferred from Direct Assay more info	PubMed
enables geranylgeranyl-diphosphate geranylgeranyltransferase activity	ISS Inferred from Sequence or Structural Similarity more info	PubMed
enables geranylgeranyl-diphosphate geranylgeranyltransferase activity	TAS Traceable Author Statement more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
involved_in carotenoid biosynthetic process	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within carotenoid biosynthetic process	IMP Inferred from Mutant Phenotype more info	PubMed

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

General protein information

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Preferred Names: PHYTOENE SYNTHASE

NP_001031895.1

PHYTOENE SYNTHASE (PSY); FUNCTIONS IN: phytoene synthase activity, geranylgeranyl-diphosphate geranylgeranyltransferase activity; INVOLVED IN: carotenoid biosynthetic process; LOCATED IN: chloroplast; EXPRESSED IN: 23 plant structures; EXPRESSED DURING: 13 growth stages; CONTAINS InterPro DOMAIN/s: Squalene/phytoene synthase, conserved site (InterPro:IPR019845), Terpenoid synthase (InterPro:IPR008949), Squalene/phytoene synthase (InterPro:IPR002060); Has 5521 Blast hits to 5513 proteins in 1034 species: Archae - 81; Bacteria - 2497; Metazoa - 59; Fungi - 72; Plants - 997; Viruses - 0; Other Eukaryotes - 1815 (source: NCBI BLink).

NP_001318580.1

PHYTOENE SYNTHASE (PSY); CONTAINS InterPro DOMAIN/s: Squalene/phytoene synthase, conserved site (InterPro:IPR019845), Terpenoid synthase (InterPro:IPR008949), Squalene/phytoene synthase (InterPro:IPR002060); Has 5365 Blast hits to 5364 proteins in 1001 species: Archae - 81; Bacteria - 2469; Metazoa - 28; Fungi - 64; Plants - 1002; Viruses - 0; Other Eukaryotes - 1721 (source: NCBI BLink).

NP_197225.1

PHYTOENE SYNTHASE (PSY); FUNCTIONS IN: phytoene synthase activity, geranylgeranyl-diphosphate geranylgeranyltransferase activity; INVOLVED IN: carotenoid biosynthetic process; LOCATED IN: chloroplast; EXPRESSED IN: 23 plant structures; EXPRESSED DURING: 13 growth stages; CONTAINS InterPro DOMAIN/s: Squalene/phytoene synthase, conserved site (InterPro:IPR019845), Terpenoid synthase (InterPro:IPR008949), Squalene/phytoene synthase (InterPro:IPR002060); Has 1807 Blast hits to 1807 proteins in 277 species: Archae - 0; Bacteria - 0; Metazoa - 736; Fungi - 347; Plants - 385; Viruses - 0; Other Eukaryotes - 339 (source: NCBI BLink).