PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Utricularia gibba
B3 Family
Species TF ID Description
678295696B3 family protein
678306966B3 family protein
678310636B3 family protein
678312469B3 family protein
678334550B3 family protein
678336702B3 family protein
678346614B3 family protein
678360908B3 family protein
678378769B3 family protein
678399758B3 family protein
678418927B3 family protein
678420571B3 family protein
678423983B3 family protein
678430771B3 family protein
678447639B3 family protein
678447928B3 family protein
678453567B3 family protein
678461862B3 family protein
678465080B3 family protein
678465920B3 family protein
678467598B3 family protein
678467900B3 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).