NCBI Accession #
NP_195574.1
NCBI GenBank Nucleotide #
NM_120023.3
NCBI Official Full Name
myb domain protein 4
NCBI Official Symbol
MYB4
NCBI Official Synonym Symbols
ATMYB4; myb domain protein 4; T9A14.11
NCBI Protein Information
myb domain protein 4
NCBI 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.
UniProt Synonym Gene Names
AtMYB4
UniProt Protein Name
Transcription repressor MYB4
UniProt Synonym Protein Names
Myb-related protein 4; AtMYB4
UniProt Primary Accession #
Q9SZP1
UniProt Secondary Accession #
O49774; Q7DLI1
UniProt Related Accession #
Q9SZP1
UniProt Comments
Transcription repressor involved in regulation of protection against UV. Mediates transcriptional repression of CYP73A5, the gene encoding trans-cinnamate 4-monooxygenase, thereby regulating the accumulation of the UV-protectant compound sinapoylmalate.