bHLH


Domain
HLH domain
Group
Basic Domians group
PFAM
PF00010
Desciption
A basic helix-loop-helix (bHLH) is a protein structural motif that characterizes one of the largest families of dimerizing transcription factors.It should not be confused with the helix-turn-helix domain.The motif is characterized by two α-helices connected by a loop. In general, transcription factors including this domain are dimeric, each with one helix containing basic amino acid residues that facilitate DNA binding. In general, one helix is smaller, and, due to the flexibility of the loop, allows dimerization by folding and packing against another helix. The larger helix typically contains the DNA-binding regions. bHLH proteins typically bind to a consensus sequence called an E-box, CANNTG. The canonical E-box is CACGTG (palindromic), however some bHLH transcription factors, notably those of the bHLH-PAS family, bind to related non-palindromic sequences, which are similar to the E-box. bHLH TFs may homodimerize or heterodimerize with other bHLH TFs and form a large variety of dimers, each one with specific functions.https://en.wikipedia.org/wiki/Basic_helix-loop-helix
Rederence
  • Function of the c-Myc oncoprotein. Kato GJ, Dang CV. FASEB J. 6, 3065-72, (1992).
  • A new DNA binding and dimerization motif in immunoglobulin enhancer binding, daughterless, MyoD, and myc proteins. Murre C, McCaw PS, Baltimore D. Cell 56, 777-83, (1989).
  • CeMyoD accumulation defines the body wall muscle cell fate during C. elegans embryogenesis. Krause M, Fire A, Harrison SW, Priess J, Weintraub H. Cell 63, 907-19, (1990).
  • The expression pattern of Id4, a novel dominant negative helix-loop-helix protein, is distinct from Id1, Id2 and Id3. Riechmann V, van Cruchten I, Sablitzky F. Nucleic Acids Res. 22, 749-55, (1994).

Statistic of Transcription Factors




Transcription Factor Table

Species


Gene ID Insect Gene Name Gene Symbol
iTF_00000002 Abrostola tripartita Atri004910.1 hand2
iTF_00000003 Abrostola tripartita Atri003664.1 ptf1a
iTF_00000004 Abrostola tripartita Atri001535.1 Nhlh1
iTF_00000005 Abrostola tripartita Atri015511.1 ase
iTF_00000006 Abrostola tripartita Atri022165.1 fer3
iTF_00000007 Abrostola tripartita Atri015507.1 l(1)sc
iTF_00000008 Abrostola tripartita Atri015509.1 l(1)sc
iTF_00000009 Abrostola tripartita Atri017959.1 ato
iTF_00000010 Abrostola tripartita Atri015505.1 l(1)sc
iTF_00000011 Abrostola tripartita Atri006102.1 tal1
iTF_00000012 Abrostola tripartita Atri005315.1 TWIST2
iTF_00000013 Abrostola tripartita Atri001674.1 tx
iTF_00000014 Abrostola tripartita Atri009805.1 bhlhe22
iTF_00000015 Abrostola tripartita Atri021378.1 TFAP4
iTF_00000016 Abrostola tripartita Atri018137.1 tap
iTF_00000017 Abrostola tripartita Atri003875.1 hlh-13
iTF_00000018 Abrostola tripartita Atri005178.1 atoh8
iTF_00000019 Abrostola tripartita Atri017092.1 Msc
iTF_00000020 Abrostola tripartita Atri022249.1 NHLH2
iTF_00000021 Abrostola tripartita Atri015901.1 MLX
iTF_00000022 Abrostola tripartita Atri015308.1 Srebf1
iTF_00000023 Abrostola tripartita Atri012712.1 TCF15
iTF_00000024 Abrostola tripartita Atri012255.1 Hey
iTF_00000025 Abrostola tripartita Atri001592.1 USF1
iTF_00000026 Abrostola tripartita Atri021996.1 MAX
iTF_00000027 Abrostola tripartita Atri013468.1 dimm
iTF_00000028 Abrostola tripartita Atri012873.1 dpn
iTF_00000029 Abrostola tripartita Atri003391.1 cyc
iTF_00000030 Abrostola tripartita Atri005240.1 E(spl)mbeta-HLH
iTF_00000031 Abrostola tripartita Atri012544.1 hry
iTF_00000032 Abrostola tripartita Atri002905.1 Mlxip
iTF_00000033 Abrostola tripartita Atri005251.1 E(spl)mbeta-HLH
iTF_00000034 Abrostola tripartita Atri018184.1 cwo
iTF_00000035 Abrostola tripartita Atri011823.1 tgo
iTF_00000036 Abrostola tripartita Atri005239.1 E(spl)mgamma-HLH
iTF_00000037 Abrostola tripartita Atri008670.1 Tfeb
iTF_00000038 Abrostola tripartita Atri001021.1 da
iTF_00000039 Abrostola tripartita Atri017191.1 Myc
iTF_00000040 Abrostola tripartita Atri007103.1 SUM-1
iTF_00000041 Abrostola tripartita Atri003951.1 ahr-1
iTF_00000042 Abrostola tripartita Atri003871.1 Clk
iTF_00000043 Abrostola tripartita Atri017082.1 emc
iTF_00000044 Abrostola tripartita Atri014022.1 AHRR
iTF_00000045 Abrostola tripartita Atri002932.1 -
iTF_00000046 Abrostola tripartita Atri014066.1 trh
iTF_00000047 Abrostola tripartita Atri007718.1 Sim1
iTF_00000048 Abrostola tripartita Atri022172.1 HIF1A
iTF_00000049 Abrostola tripartita Atri012555.1 Bmal1
iTF_00000050 Abrostola tripartita Atri014108.1 cky-1