PlantTFDB
PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Apostasia shenzhenica
B3 Family
Species TF ID Description
PKA46580.1B3 family protein
PKA47538.1B3 family protein
PKA51840.1B3 family protein
PKA52415.1B3 family protein
PKA53257.1B3 family protein
PKA53969.1B3 family protein
PKA54200.1B3 family protein
PKA54591.1B3 family protein
PKA54657.1B3 family protein
PKA55611.1B3 family protein
PKA55715.1B3 family protein
PKA55716.1B3 family protein
PKA57293.1B3 family protein
PKA57384.1B3 family protein
PKA59194.1B3 family protein
PKA60657.1B3 family protein
PKA60951.1B3 family protein
PKA60952.1B3 family protein
PKA60953.1B3 family protein
PKA61273.1B3 family protein
PKA66844.1B3 family protein
PKA67217.1B3 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).