PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Ricinus communis
MYB Family
Species TF ID Description
27763.m000042MYB family protein
27798.m000612MYB family protein
27956.m000359MYB family protein
28154.m000040MYB family protein
28226.m000839MYB family protein
28271.m000023MYB family protein
28288.m000014MYB family protein
28489.m000045MYB family protein
28603.m000172MYB family protein
28838.m000246MYB family protein
29602.m000218MYB family protein
29610.m000410MYB family protein
29628.m000773MYB family protein
29654.m000304MYB family protein
29656.m000479MYB family protein
29680.m001688MYB family protein
29681.m001296MYB family protein
29681.m001315MYB family protein
29686.m000890MYB family protein
29736.m002013MYB family protein
29739.m003784MYB family protein
29767.m000199MYB family protein
29785.m000932MYB family protein
29788.m000340MYB family protein
29794.m003447MYB family protein
29801.m003096MYB family protein
29813.m001506MYB family protein
29814.m000736MYB family protein
29818.m000395MYB family protein
29823.m000215MYB family protein
29846.m000184MYB family protein
29917.m001977MYB family protein
29917.m001986MYB family protein
29929.m004749MYB family protein
29933.m001453MYB family protein
29933.m001454MYB family protein
29970.m000987MYB family protein
29983.m003281MYB family protein
30000.m000380MYB family protein
30054.m000809MYB family protein
30055.m001589MYB family protein
30064.m000484MYB family protein
30068.m002544MYB family protein
30076.m004607MYB family protein
30125.m001257MYB family protein
30128.m008730MYB family protein
30131.m007263MYB family protein
30137.m000436MYB family protein
30138.m004082MYB family protein
30147.m013885MYB family protein
30147.m013937MYB family protein
30167.m000852MYB family protein
30169.m006322MYB family protein
30170.m013698MYB family protein
30170.m013927MYB family protein
30174.m008717MYB family protein
30174.m008784MYB family protein
30174.m009001MYB family protein
30190.m011004MYB family protein
30190.m011160MYB family protein
30190.m011268MYB family protein
30225.m001689MYB 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