PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Oryza nivara
bHLH Family
Species TF ID Description
ONIVA01G00330.1bHLH family protein
ONIVA01G00550.1bHLH family protein
ONIVA01G00560.1bHLH family protein
ONIVA01G00780.1bHLH family protein
ONIVA01G04390.1bHLH family protein
ONIVA01G04390.2bHLH family protein
ONIVA01G07080.1bHLH family protein
ONIVA01G07090.1bHLH family protein
ONIVA01G07100.1bHLH family protein
ONIVA01G07150.1bHLH family protein
ONIVA01G07170.1bHLH family protein
ONIVA01G07190.1bHLH family protein
ONIVA01G07440.1bHLH family protein
ONIVA01G09540.1bHLH family protein
ONIVA01G11170.1bHLH family protein
ONIVA01G14150.1bHLH family protein
ONIVA01G14150.2bHLH family protein
ONIVA01G14150.3bHLH family protein
ONIVA01G14500.1bHLH family protein
ONIVA01G18550.1bHLH family protein
ONIVA01G18550.2bHLH family protein
ONIVA01G19770.1bHLH family protein
ONIVA01G22870.1bHLH family protein
ONIVA01G22920.1bHLH family protein
ONIVA01G22980.1bHLH family protein
ONIVA01G32020.1bHLH family protein
ONIVA01G32170.1bHLH family protein
ONIVA01G37010.1bHLH family protein
ONIVA01G38120.1bHLH family protein
ONIVA01G41030.1bHLH family protein
ONIVA01G43060.1bHLH family protein
ONIVA01G45730.1bHLH family protein
ONIVA01G46800.1bHLH family protein
ONIVA01G48650.1bHLH family protein
ONIVA01G50120.1bHLH family protein
ONIVA02G01100.1bHLH family protein
ONIVA02G01430.1bHLH family protein
ONIVA02G01430.2bHLH family protein
ONIVA02G06380.1bHLH family protein
ONIVA02G10570.1bHLH family protein
ONIVA02G12460.1bHLH family protein
ONIVA02G16710.1bHLH family protein
ONIVA02G16710.2bHLH family protein
ONIVA02G21790.1bHLH family protein
ONIVA02G23040.1bHLH family protein
ONIVA02G26110.1bHLH family protein
ONIVA02G30660.1bHLH family protein
ONIVA02G32260.1bHLH family protein
ONIVA02G32560.1bHLH family protein
ONIVA02G34070.2bHLH family protein
ONIVA02G34070.3bHLH family protein
ONIVA02G34070.4bHLH family protein
ONIVA02G34070.5bHLH family protein
ONIVA02G35790.1bHLH family protein
ONIVA02G37880.1bHLH family protein
ONIVA02G37880.3bHLH family protein
ONIVA02G38510.1bHLH family protein
ONIVA02G39130.1bHLH family protein
ONIVA02G39130.2bHLH family protein
ONIVA02G39130.3bHLH family protein
ONIVA02G39270.1bHLH family protein
ONIVA03G02430.1bHLH family protein
ONIVA03G05170.3bHLH family protein
ONIVA03G05190.1bHLH family protein
ONIVA03G07570.1bHLH family protein
ONIVA03G07980.1bHLH family protein
ONIVA03G12280.1bHLH family protein
ONIVA03G13290.1bHLH family protein
ONIVA03G20030.1bHLH family protein
ONIVA03G20270.1bHLH family protein
ONIVA03G20320.1bHLH family protein
ONIVA03G20840.1bHLH family protein
ONIVA03G21780.1bHLH family protein
ONIVA03G21780.2bHLH family protein
ONIVA03G27180.1bHLH family protein
ONIVA03G28270.1bHLH family protein
ONIVA03G30250.1bHLH family protein
ONIVA03G30270.1bHLH family protein
ONIVA03G34090.1bHLH family protein
ONIVA03G34090.2bHLH family protein
ONIVA03G34330.1bHLH family protein
ONIVA03G36430.1bHLH family protein
ONIVA03G36430.2bHLH family protein
ONIVA03G36690.1bHLH family protein
ONIVA03G38760.1bHLH family protein
ONIVA03G38760.2bHLH family protein
ONIVA03G38760.3bHLH family protein
ONIVA03G39240.1bHLH family protein
ONIVA03G40100.1bHLH family protein
ONIVA04G03690.1bHLH family protein
ONIVA04G06980.1bHLH family protein
ONIVA04G06980.2bHLH family protein
ONIVA04G06980.3bHLH family protein
ONIVA04G07960.1bHLH family protein
ONIVA04G07960.2bHLH family protein
ONIVA04G10990.1bHLH family protein
ONIVA04G11000.1bHLH family protein
ONIVA04G15000.1bHLH family protein
ONIVA04G15000.2bHLH family protein
ONIVA04G19650.1bHLH family protein
ONIVA04G19860.1bHLH family protein
ONIVA04G22720.1bHLH family protein
ONIVA04G23100.1bHLH family protein
ONIVA04G24530.1bHLH family protein
ONIVA04G25390.1bHLH family protein
ONIVA05G00200.1bHLH family protein
ONIVA05G02540.1bHLH family protein
ONIVA05G04390.1bHLH family protein
ONIVA05G04820.1bHLH family protein
ONIVA05G07120.1bHLH family protein
ONIVA05G19800.1bHLH family protein
ONIVA05G22530.1bHLH family protein
ONIVA05G25380.1bHLH family protein
ONIVA05G29540.1bHLH family protein
ONIVA05G30250.1bHLH family protein
ONIVA06G04530.1bHLH family protein
ONIVA06G05510.1bHLH family protein
ONIVA06G05510.2bHLH family protein
ONIVA06G06250.1bHLH family protein
ONIVA06G06960.1bHLH family protein
ONIVA06G06960.2bHLH family protein
ONIVA06G06960.3bHLH family protein
ONIVA06G06960.4bHLH family protein
ONIVA06G09300.1bHLH family protein
ONIVA06G12430.1bHLH family protein
ONIVA06G18720.1bHLH family protein
ONIVA06G19730.1bHLH family protein
ONIVA06G20810.1bHLH family protein
ONIVA06G22830.1bHLH family protein
ONIVA06G22830.2bHLH family protein
ONIVA06G24740.1bHLH family protein
ONIVA06G30800.1bHLH family protein
ONIVA07G01070.1bHLH family protein
ONIVA07G01070.2bHLH family protein
ONIVA07G04020.1bHLH family protein
ONIVA07G05030.1bHLH family protein
ONIVA07G05400.1bHLH family protein
ONIVA07G15940.1bHLH family protein
ONIVA07G15940.2bHLH family protein
ONIVA07G16350.1bHLH family protein
ONIVA07G18960.1bHLH family protein
ONIVA07G22640.1bHLH family protein
ONIVA08G00590.1bHLH family protein
ONIVA08G02550.1bHLH family protein
ONIVA08G04680.2bHLH family protein
ONIVA08G16750.1bHLH family protein
ONIVA08G17500.1bHLH family protein
ONIVA08G19790.1bHLH family protein
ONIVA08G20180.1bHLH family protein
ONIVA08G20580.1bHLH family protein
ONIVA08G20800.1bHLH family protein
ONIVA08G20800.2bHLH family protein
ONIVA08G22410.1bHLH family protein
ONIVA08G23980.1bHLH family protein
ONIVA08G24900.1bHLH family protein
ONIVA08G25370.1bHLH family protein
ONIVA09G09550.1bHLH family protein
ONIVA09G10010.1bHLH family protein
ONIVA09G10010.2bHLH family protein
ONIVA09G10010.3bHLH family protein
ONIVA09G13640.1bHLH family protein
ONIVA09G13890.1bHLH family protein
ONIVA09G14290.3bHLH family protein
ONIVA09G14370.1bHLH family protein
ONIVA09G14370.3bHLH family protein
ONIVA09G14370.4bHLH family protein
ONIVA09G16520.1bHLH family protein
ONIVA09G17110.1bHLH family protein
ONIVA09G17110.2bHLH family protein
ONIVA09G17720.1bHLH family protein
ONIVA10G02990.3bHLH family protein
ONIVA10G07810.1bHLH family protein
ONIVA10G12820.1bHLH family protein
ONIVA10G19680.1bHLH family protein
ONIVA10G20730.1bHLH family protein
ONIVA10G20730.2bHLH family protein
ONIVA10G20730.3bHLH family protein
ONIVA10G22030.1bHLH family protein
ONIVA11G03290.1bHLH family protein
ONIVA11G03770.1bHLH family protein
ONIVA11G11880.1bHLH family protein
ONIVA11G11880.2bHLH family protein
ONIVA11G11880.3bHLH family protein
ONIVA11G18690.1bHLH family protein
ONIVA11G20620.1bHLH family protein
ONIVA12G10770.1bHLH family protein
ONIVA12G13030.1bHLH family protein
ONIVA12G13790.1bHLH family protein
ONIVA12G15960.1bHLH family protein
ONIVA12G16570.1bHLH family protein
ONIVA12G16580.1bHLH family protein
ONIVA12G16610.1bHLH family protein
ONIVA12G16650.1bHLH family protein
ONIVA12G17350.1bHLH family protein
ONIVA12G17350.2bHLH family protein
ONIVA12G17350.3bHLH family protein
ONIVA12G17350.4bHLH family protein
ONIVA12G17350.5bHLH family protein
ONIVA12G18400.1bHLH family protein
bHLH Family Introduction

The basic/helix-loop-helix (bHLH) proteins are a superfamily of transcription factors that have been well characterized in nonplant eukaryotes, especially in mammalian systems, in which considerable structural, functional, and phylogenetic analyses have been performed. The data indicate that bHLH proteins are important regulatory components in transcriptional networks in these systems, controlling a diversity of processes from cell proliferation to cell lineage establishment.

This family is defined by the bHLH signature domain, which consists of 60 amino acids with two functionally distinct regions. The basic region, located at the N-terminal end of the domain, is involved in DNA binding and consists of 15 amino acids with a high number of basic residues. The HLH region, at the C-terminal end, functions as a dimerization domain and is constituted mainly of hydrophobic residues that form two amphipathic -helices separated by a loop region of variable sequence and length. Outside of the conserved bHLH domain, these proteins exhibit considerable sequence divergence. Cocrystal structural analysis has shown that the interaction between the HLH regions of two separate polypeptides leads to the formation of homodimers and/or heterodimers and that the basic region of each partner binds to half of the DNA recognition sequence. Some bHLH proteins form homodimers or restrict their heterodimerization activity to closely related members of the family. On the other hand, some can form heterodimers with one or several different partners.

The core DNA sequence motif recognized by the bHLH proteins is a consensus hexanucleotide sequence known as the E-box (5'-CANNTG-3'). There are different types of E-boxes, depending on the identity of the two central bases. One of the most common is the palindromic G-box (5'-CACGTG-3'). Certain conserved amino acids within the basic region of the protein provide recognition of the core consensus site, whereas other residues in the domain dictate specificity for a given type of E-box . In addition, flanking nucleotides outside of the hexanucleotide core have been shown to play a role in binding specificity, and there is evidence that a loop residue in the protein plays a role in DNA binding through elements that lie outside of the core recognition sequence.

Toledo-Ortiz G, Huq E, Quail PH.
The Arabidopsis basic/helix-loop-helix transcription factor family.
Plant Cell. 2003 Aug;15(8):1749-70
PMID: 12897250