MYB4 myb domain protein 4 [Arabidopsis thaliana (thale cress)] - Gene

Summary

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Official Symbol: MYB4
Official Full Name: myb domain protein 4
Primary source: TAIR:AT4G38620
Locus tag: AT4G38620
See related: Araport:AT4G38620
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: ATMYB4; myb domain protein 4; T9A14.11
Summary: Encodes a R2R3 MYB protein which is involved in the response to UV-B. It functions as a repressor of target gene expression. One of its target genes encodes cinnamate 4-hydroxylase; mutants accumulate sinapate esters in their leaves. MYB4 binds to its own promoter and represses its own expression. Nuclear localization of MYB4 depends on the action of the beta importin SAD2.
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Genomic context

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See MYB4 in Genome Data Viewer

Location:: chromosome: 4

Exon count:: 2

Sequence:: Chromosome: 4; NC_003075.7 (18053360..18055040)

Chromosome 4 - NC_003075.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_003075.7

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

MYB4, a member of R2R3-subfamily of MYB transcription factor functions as a repressor of key genes involved in flavonoid biosynthesis and repair of UV-B induced DNA double strand breaks in Arabidopsis.
Title: MYB4, a member of R2R3-subfamily of MYB transcription factor functions as a repressor of key genes involved in flavonoid biosynthesis and repair of UV-B induced DNA double strand breaks in Arabidopsis.
An MKP-MAPK protein phosphorylation cascade controls vascular immunity in plants.
Title: An MKP-MAPK protein phosphorylation cascade controls vascular immunity in plants.
The N-terminal MYB domains affect the stability and folding aspects of Arabidopsis thaliana MYB4 transcription factor under thermal stress.
Title: The N-terminal MYB domains affect the stability and folding aspects of Arabidopsis thaliana MYB4 transcription factor under thermal stress.
A MYB4-MAN3-Mannose-MNB1 signaling cascade regulates cadmium tolerance in Arabidopsis.
Title: A MYB4-MAN3-Mannose-MNB1 signaling cascade regulates cadmium tolerance in Arabidopsis.
MYB4 transcription factor, a member of R2R3-subfamily of MYB domain protein, regulates cadmium tolerance via enhanced protection against oxidative damage and increases expression of PCS1 and MT1C in Arabidopsis.
Title: MYB4 transcription factor, a member of R2R3-subfamily of MYB domain protein, regulates cadmium tolerance via enhanced protection against oxidative damage and increases expression of PCS1 and MT1C in Arabidopsis.
Arabidopsis MYB4 plays dual roles in flavonoid biosynthesis.
Title: Arabidopsis MYB4 plays dual roles in flavonoid biosynthesis.
Arabidopsis thaliana mutant sensitive to ABA and drought2 (sad2), which harbors a T-DNA insertion in an importin beta-like gene, is more tolerant to UV-B radiation than the wild type.
Title: SAD2, an importin -like protein, is required for UV-B response in Arabidopsis by mediating MYB4 nuclear trafficking.

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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_120023.3

Supported by ESTs:

Gene Ontology Provided by TAIR

Function	Evidence Code	Pubs
enables DNA binding	IDA Inferred from Direct Assay more info	PubMed
enables DNA binding	IPI Inferred from Physical Interaction more info	PubMed
enables DNA-binding transcription factor activity	ISS Inferred from Sequence or Structural Similarity more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables transcription cis-regulatory region binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
acts_upstream_of_or_within negative regulation of DNA-templated transcription	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within negative regulation of sinapate ester biosynthetic process	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within regulation of phenylpropanoid metabolic process	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within response to UV-B	IEP Inferred from Expression Pattern more info	PubMed
acts_upstream_of_or_within response to UV-B	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in nucleus	ISM Inferred from Sequence Model more info

General protein information

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Preferred Names: myb domain protein 4

NP_195574.1

myb domain protein 4 (MYB4); CONTAINS InterPro DOMAIN/s: SANT, DNA-binding (InterPro:IPR001005), Homeodomain-like (InterPro:IPR009057), Myb, DNA-binding (InterPro:IPR014778), HTH transcriptional regulator, Myb-type, DNA-binding (InterPro:IPR017930), Homeodomain-related (InterPro:IPR012287), Myb transcription factor (InterPro:IPR015495); BEST Arabidopsis thaliana protein match is: myb domain protein 32 (TAIR:AT4G34990.1); Has 9208 Blast hits to 8453 proteins in 515 species: Archae - 0; Bacteria - 0; Metazoa - 855; Fungi - 510; Plants - 6018; Viruses - 3; Other Eukaryotes - 1822 (source: NCBI BLink).