PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Pinus taeda
MYB Family
Species TF ID Description
Pta001074MYB family protein
Pta001276MYB family protein
Pta001383MYB family protein
Pta001609MYB family protein
Pta001942MYB family protein
Pta002030MYB family protein
Pta002126MYB family protein
Pta002197MYB family protein
Pta002366MYB family protein
Pta004070MYB family protein
Pta006680MYB family protein
Pta007218MYB family protein
Pta007263MYB family protein
Pta007398MYB family protein
Pta007673MYB family protein
Pta007743MYB family protein
Pta007756MYB family protein
Pta007870MYB family protein
Pta008031MYB family protein
Pta008090MYB family protein
Pta008286MYB family protein
Pta008455MYB family protein
Pta008925MYB family protein
Pta009567MYB family protein
Pta009759MYB family protein
Pta010037MYB family protein
Pta010793MYB family protein
Pta000282MYB family protein
Pta000464MYB family protein
Pta000625MYB family protein
Pta002828MYB family protein
Pta003260MYB family protein
Pta004023MYB family protein
Pta006975MYB family protein
Pta008093MYB 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