PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Vigna unguiculata
MYB Family
Species TF ID Description
Vun000373MYB family protein
Vun001223MYB family protein
Vun001581MYB family protein
Vun001600MYB family protein
Vun002092MYB family protein
Vun002177MYB family protein
Vun002193MYB family protein
Vun002211MYB family protein
Vun002440MYB family protein
Vun002773MYB family protein
Vun003183MYB family protein
Vun003323MYB family protein
Vun003825MYB family protein
Vun003851MYB family protein
Vun004083MYB family protein
Vun004421MYB family protein
Vun007431MYB family protein
Vun007747MYB family protein
Vun007814MYB family protein
Vun007833MYB family protein
Vun007952MYB family protein
Vun007977MYB family protein
Vun008002MYB family protein
Vun008341MYB family protein
Vun008686MYB family protein
Vun009961MYB family protein
MYB Family Introduction

MYB factors represent a family of proteins that include the conserved MYB DNA-binding domain.The first MYB gene identified was the "oncogene" v-Myb derived from the avian myeloblastosis virus . Evidence obtained from sequence comparisons indicates that v-Myb may have originated from a vertebrate gene, which mutated once it became part of the virus. Many vertebrates contain three genes related to v-Myb c-Myb, A-Myb and B-Myb and other similar genes have been identified in insects, plants, fungi and slime moulds. The encoded proteins are crucial to the control of proliferation and differentiation in a number of cell types, and share the conserved MYB DNA-binding domain. This domain generally comprises up to three imperfect repeats, each forming a helix-turn-helix structure of about 53 amino acids. Three regularly spaced tryptophan residues, which form a tryptophan cluster in the three-dimensional helix-turn-helix structure, are characteristic of a MYB repeat. The three repeats in c-Myb are referred to as R1, R2 and R3; and repeats from other MYB proteins are categorised according to their similarity to either R1, R2 or R3.

In contrast to animals, plants contain a MYB-protein subfamily that is characterised by the R2R3-type MYB domain. MYB proteins can be classified into three subfamilies depending on the number of adjacent repeats in the MYB domain (one, two or three). We refer to MYB-like proteins with one repeat as "MYB1R factors", with two as "R2R3-type MYB" factors, and with three repeats as "MYB3R" factors.

Stracke R, Werber M, Weisshaar B.
The R2R3-MYB gene family in Arabidopsis thaliana.
Curr Opin Plant Biol. 2001 Oct;4(5):447-56. Review.
PMID: 11597504