Gene: AT4G32770 (Arabidopsis thaliana)

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Gene Identifier
AT4G32770
Transcript Identifier
AT4G32770.1
Gene Type
Coding gene
Location
4 : 15804981-15807790 : positive

Family

Gene family
HOM03M005825
(18 genes in 16 species)
specific family

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Descriptions

Description
tocopherol cyclase, chloroplast / vitamin E deficient 1 (VTE1) / sucrose export defective 1 (SXD1)
Curated Summary
Tocopherol cyclase involved in tocopherol (vitamin E)synthesis. VTE1 over-expressing plants have increased tocopherol indicating VTE1 is a major limiting factor in tocopherol synthesis. Mutants defective in this gene accumulate high amounts of zeaxanthin in conditions of high light or low temperature. Plays a role in the adaptation to low temperature stress, notably phloem loading.
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Identifiers

Identifier Name
aliasVTE1
aliasVITAMIN E DEFICIENT 1
aliasATSDX1
aliasSUCROSE EXPORT DEFECTIVE 1
uniprotQ94FY7

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Biological Process

GO termEvidence(s)ProviderDescriptionSource
GO:0010189IDAUniProtvitamin E biosynthetic process1 2 3 4 5 6
GO:0006979IEPUniProtresponse to oxidative stress1 2 3 4 5 6
GO:0009644IEPUniProtresponse to high light intensity1 2 3 4 5 6
GO:0006631IGIUniProtfatty acid metabolic process1 2 3 4 5 6
GO:0015994IGIUniProtchlorophyll metabolic process1 2 3 4 5 6
GO:0016122IMPUniProtxanthophyll metabolic process1 2 3 4 5 6
GO:0009266IMPUniProtresponse to temperature stimulus1 2 3 4 5 6
GO:0009915IMPUniProtphloem sucrose loading1 2 3 4 5 6
GO:0031347IMPUniProtregulation of defense response1 2 3 4 5 6
GO:0010264RCAGene Ontologymyo-inositol hexakisphosphate biosynthetic process1

Molecular Function

GO termEvidence(s)ProviderDescriptionSource
GO:0009976IDA, IMPIEA, UniProttocopherol cyclase activity1 2 3 4 5 6 7

Cellular Component

GO termEvidence(s)ProviderDescriptionSource
GO:0009507IDA, ISM, ISSGene Ontologychloroplast1 2 3
GO:0009706TASUniProtchloroplast inner membrane1 2 3 4 5 6
GO:0010287IDAUniProtplastoglobule1 2 3 4 5 6
GO:0009534IDAUniProtchloroplast thylakoid1 2 3 4 5 6
GO:0009941IDAGene Ontologychloroplast envelope1

Color Legend

Experimental Evidence
Electronic Evidence
Computational Reviewed Evidence
GO Sources:   Primary     Orthology     Homology  
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InterPro Description
IPR025893Tocopherol cyclase

Mapman id Description
16.1.3.4secondary metabolism.isoprenoids.tocopherol biosynthesis.tocopherol cyclase
No SignalP domains detected for this gene.