PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Spinacia oleracea
B3 Family
Species TF ID Description
Sp_001060_cxwk.t1B3 family protein
Sp_001070_untf.t1B3 family protein
Sp_008010_meew.t1B3 family protein
Sp_020420_jnzx.t1B3 family protein
Sp_025870_qihe.t1B3 family protein
Sp_028090_pzqt.t1B3 family protein
Sp_040840_qfza.t1B3 family protein
Sp_047100_zuho.t1B3 family protein
Sp_047100_zuho.t2B3 family protein
Sp_048930_ojmz.t1B3 family protein
Sp_049650_yhzk.t1B3 family protein
Sp_053590_purn.t1B3 family protein
Sp_067720_upzk.t1B3 family protein
Sp_073880_rpet.t1B3 family protein
Sp_073880_rpet.t2B3 family protein
Sp_074780_azie.t1B3 family protein
Sp_089920_nacf.t1B3 family protein
Sp_091120_fxjm.t1B3 family protein
Sp_107060_rtie.t1B3 family protein
Sp_115280_sysi.t1B3 family protein
Sp_128690_efym.t1B3 family protein
Sp_128700_dopc.t1B3 family protein
Sp_128700_dopc.t2B3 family protein
Sp_132790_ckrd.t1B3 family protein
Sp_132790_ckrd.t2B3 family protein
Sp_135450_chwe.t1B3 family protein
Sp_135460_mmfz.t1B3 family protein
Sp_138170_ozde.t1B3 family protein
Sp_139420_apag.t1B3 family protein
Sp_144670_xrwg.t1B3 family protein
Sp_144750_kgyu.t1B3 family protein
Sp_146300_qsgq.t1B3 family protein
Sp_157210_rchm.t1B3 family protein
Sp_160120_qmia.t1B3 family protein
Sp_170880_jzno.t1B3 family protein
Sp_181860_xcez.t1B3 family protein
Sp_188220_zekp.t1B3 family protein
Sp_193850_gdnh.t1B3 family protein
Sp_193860_qyts.t1B3 family protein
Sp_196040_azyd.t1B3 family protein
Sp_198550_pdtg.t1B3 family protein
Sp_200060_araf.t1B3 family protein
Sp_200280_jrar.t1B3 family protein
Sp_203370_mpzd.t1B3 family protein
Sp_207850_kpqu.t1B3 family protein
Sp_210260_rgos.t1B3 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).