PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Saccharum officinarum
MYB Family
Species TF ID Description
Sof000758MYB family protein
Sof001804MYB family protein
Sof003449MYB family protein
Sof003505MYB family protein
Sof003948MYB family protein
Sof003951MYB family protein
Sof004174MYB family protein
Sof004191MYB family protein
Sof004239MYB family protein
Sof004435MYB family protein
Sof004495MYB family protein
Sof005034MYB family protein
Sof005167MYB family protein
Sof005517MYB family protein
Sof007609MYB family protein
Sof007767MYB family protein
Sof007974MYB family protein
Sof008795MYB family protein
Sof009766MYB family protein
Sof009888MYB family protein
Sof011477MYB family protein
Sof012173MYB family protein
Sof012246MYB family protein
Sof012282MYB family protein
Sof012471MYB family protein
Sof012917MYB family protein
Sof015998MYB family protein
Sof016417MYB family protein
Sof016537MYB family protein
Sof016927MYB family protein
Sof017187MYB family protein
Sof017937MYB family protein
Sof018338MYB family protein
Sof018838MYB family protein
Sof018892MYB family protein
Sof019006MYB 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