Gene: AT2G20180 (Arabidopsis thaliana)

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Gene Identifier
AT2G20180
Transcript Identifier
AT2G20180.2
Gene Type
Coding gene
Location
2 : 8704525-8706538 : negative

Family

Gene family
HOM03D000046
(1586 genes in 29 species)
specific family
Subfamily
ORTHO03D006694
(32 genes in 24 species)
specific family
Duplication type
Block duplicate

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Descriptions

Description
phytochrome interacting factor 3-like 5
Curated Summary
Encodes a novel Myc-related bHLH transcription factor that has transcriptional activation activity in the dark. It is a key negative regulator of phytochrome-mediated seed germination and acts by inhibiting chlorophyll biosynthesis, light-mediated suppression of hypocotyl elongation and far-red light-mediated suppression of seed germination, and promoting negative gravitropism in hypocotyls. Light reduces this activity in a phy-dependent manner. The protein preferentially interacts with the Pfr forms of Phytochrome A (PhyA) and Phytochrome B (PhyB), is physically associated with APRR1/TOC1 and is degraded in red (R) and far-red (FR) light through the ubiquitin (ub)-26S proteasome pathway to optimize photomorphogenic development in Arabidopsis. It also negatively regulates GA3 oxidase expression.
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Identifiers

Identifier Name
aliasPHY-INTERACTING FACTOR 1
aliasPIF1
aliasphytochrome interacting factor 3-like 5
aliasPIL5
uniprotQ8GZM7

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Biological Process

GO termEvidence(s)ProviderDescriptionSource
GO:0015995IMPUniProtchlorophyll biosynthetic process1 2 3 4 5 6 7 8 9 10 11 12
GO:0010187IMP, IGIUniProtnegative regulation of seed germination1 2 3 4 5 6 7 8 9 10 11 12 13
GO:0009959IMP, TAS, UniProtnegative gravitropism1 2 3 4 5 6 7 8 9 10 11 12 13
GO:0010029TASGene Ontologyregulation of seed germination1
GO:0010099TASGene Ontologyregulation of photomorphogenesis1
GO:0006355IMPGene Ontologyregulation of transcription, DNA-dependent1
GO:0009740IMP, RCA, UniProtgibberellic acid mediated signaling pathway1 2 3 4 5 6 7 8 9 10 11 12 13
GO:0010100IMPUniProtnegative regulation of photomorphogenesis1 2 3 4 5 6 7 8 9 10 11 12
GO:0010161IDAUniProtred light signaling pathway1 2 3 4 5 6 7 8 9 10 11 12
GO:0006783IMPUniProtheme biosynthetic process1 2 3 4 5 6 7 8 9 10 11 12
GO:0009686RCAGene Ontologygibberellin biosynthetic process1
GO:0009845RCAGene Ontologyseed germination1
GO:0048608RCAGene Ontologyreproductive structure development1
GO:0006351IEAUniProttranscription, DNA-templated1 2 3 4 5 6 7 8 9 10 11

Molecular Function

GO termEvidence(s)ProviderDescriptionSource
GO:0003700IDA, ISSTAS, UniProtsequence-specific DNA binding transcription factor activity1 2 3 4 5 6 7 8 9 10 11 12 13 14
GO:0005515IPIGene Ontologyprotein binding1
GO:0010313IDAUniProtphytochrome binding1 2 3 4 5 6 7 8 9 10 11 12
GO:0003677IDAUniProtDNA binding1 2 3 4 5 6 7 8 9 10 11 12
GO:0042802IPIGene Ontologyidentical protein binding1
GO:0046983IEAInterProprotein dimerization activity
GO:0005488IEAPLAZA HomologybindingHOM03D000046

Cellular Component

GO termEvidence(s)ProviderDescriptionSource
GO:0005634IDA, ISM, UniProtnucleus1 2 3 4 5 6 7 8 9 10 11 12 13

Color Legend

Experimental Evidence
Electronic Evidence
Computational Reviewed Evidence
GO Sources:   Primary     Orthology     Homology  
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InterPro Description
IPR011598Myc-type, basic helix-loop-helix (bHLH) domain

Mapman id Description
27.3.6RNA.regulation of transcription.bHLH,Basic Helix-Loop-Helix family
No SignalP domains detected for this gene.

Binding sites bound by this Transcription Factor

Binding siteNameDescriptionCounts
Matrix_200PIL5;AT4G28790;AT4G28800;AT4G28811;AT4G28815Not available2996 genes in 10 species
Matrix_301PIL5Not available6776 genes in 10 species

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DatabaseType
PlnTFDBbHLH
PlantTFDBbHLH