PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Medicago truncatula
B3 Family
Species TF ID Description
Medtr1g019580.1B3 family protein
Medtr1g021270.1B3 family protein
Medtr1g021290.1B3 family protein
Medtr1g021295.1B3 family protein
Medtr1g021320.1B3 family protein
Medtr1g021320.2B3 family protein
Medtr1g021330.1B3 family protein
Medtr1g021350.1B3 family protein
Medtr1g021360.1B3 family protein
Medtr1g021380.1B3 family protein
Medtr1g021400.1B3 family protein
Medtr1g021410.1B3 family protein
Medtr1g021435.1B3 family protein
Medtr1g021440.1B3 family protein
Medtr1g021440.2B3 family protein
Medtr1g021440.3B3 family protein
Medtr1g021440.4B3 family protein
Medtr1g021500.1B3 family protein
Medtr1g021500.2B3 family protein
Medtr1g034210.1B3 family protein
Medtr1g034210.2B3 family protein
Medtr1g034210.3B3 family protein
Medtr1g034240.1B3 family protein
Medtr1g035460.1B3 family protein
Medtr1g035490.1B3 family protein
Medtr1g035520.1B3 family protein
Medtr1g035570.1B3 family protein
Medtr1g035620.1B3 family protein
Medtr1g035640.1B3 family protein
Medtr1g046200.1B3 family protein
Medtr1g046320.1B3 family protein
Medtr1g046340.1B3 family protein
Medtr1g058350.1B3 family protein
Medtr1g098450.1B3 family protein
Medtr1g108780.1B3 family protein
Medtr2g011940.1B3 family protein
Medtr2g011940.2B3 family protein
Medtr2g011940.3B3 family protein
Medtr2g012700.1B3 family protein
Medtr2g062330.1B3 family protein
Medtr2g102450.1B3 family protein
Medtr2g102450.2B3 family protein
Medtr2g102450.3B3 family protein
Medtr3g005420.1B3 family protein
Medtr3g005420.2B3 family protein
Medtr3g005440.1B3 family protein
Medtr3g005460.1B3 family protein
Medtr3g005460.2B3 family protein
Medtr3g005480.1B3 family protein
Medtr3g005490.1B3 family protein
Medtr3g005495.1B3 family protein
Medtr3g061290.1B3 family protein
Medtr3g061300.1B3 family protein
Medtr3g061310.1B3 family protein
Medtr3g061320.1B3 family protein
Medtr3g061330.1B3 family protein
Medtr3g061340.1B3 family protein
Medtr3g061350.1B3 family protein
Medtr3g061370.1B3 family protein
Medtr3g075140.1B3 family protein
Medtr3g088515.1B3 family protein
Medtr3g098790.1B3 family protein
Medtr3g101520.1B3 family protein
Medtr3g101520.2B3 family protein
Medtr3g101520.3B3 family protein
Medtr3g101520.4B3 family protein
Medtr3g467380.1B3 family protein
Medtr3g467380.2B3 family protein
Medtr4g008310.1B3 family protein
Medtr4g028130.1B3 family protein
Medtr4g028130.2B3 family protein
Medtr4g028130.3B3 family protein
Medtr4g028130.4B3 family protein
Medtr4g028130.5B3 family protein
Medtr4g028130.6B3 family protein
Medtr4g068300.1B3 family protein
Medtr4g068310.1B3 family protein
Medtr4g068320.1B3 family protein
Medtr4g083390.1B3 family protein
Medtr4g083390.10B3 family protein
Medtr4g083390.2B3 family protein
Medtr4g083390.3B3 family protein
Medtr4g083390.4B3 family protein
Medtr4g083390.5B3 family protein
Medtr4g083390.6B3 family protein
Medtr4g083390.7B3 family protein
Medtr4g083390.8B3 family protein
Medtr4g083390.9B3 family protein
Medtr4g088605.1B3 family protein
Medtr4g119990.1B3 family protein
Medtr4g123470.1B3 family protein
Medtr5g044670.1B3 family protein
Medtr5g062970.1B3 family protein
Medtr5g070440.1B3 family protein
Medtr5g075410.1B3 family protein
Medtr6g036740.1B3 family protein
Medtr6g043890.1B3 family protein
Medtr6g061070.1B3 family protein
Medtr6g477950.1B3 family protein
Medtr7g050560.1B3 family protein
Medtr7g050580.1B3 family protein
Medtr7g050590.1B3 family protein
Medtr7g050640.1B3 family protein
Medtr7g050710.1B3 family protein
Medtr7g050720.1B3 family protein
Medtr7g059330.1B3 family protein
Medtr7g073240.1B3 family protein
Medtr7g083700.1B3 family protein
Medtr7g105370.1B3 family protein
Medtr7g117455.1B3 family protein
Medtr7g117590.1B3 family protein
Medtr8g023990.1B3 family protein
Medtr8g103940.1B3 family protein
B3 Family Introduction

The plant-specific B3 superfamily encompasses well-characterized families, such as the auxin response factor (ARF) family and the LAV family, as well as less well understood families, such as RAV and REM.

All members of the B3 superfamily contain an ~ 110 amino acid region called the B3 domain. This domain was initially named because it was the third basic domain in the maize gene VIVIPAROUS1 (VP1). The first and second basic domains (B1 and B2) are specific to the VP1-like proteins, but genes that contain the B3 domain are widespread in plant genomes. The B3 domain of VP1 encodes a sequence-specific DNA binding activity.

Swaminathan K, Peterson K, Jack T.
The plant B3 superfamily.
Trends Plant Sci, 2008. 13(12): p. 647-55.
PMID: 18986826

Note: In plantTFDB, B3 family includes LAV family, REM family, and RAV family (those do not contain AP2 domain).