basic helix-loop-helix (bHLH) DNA-binding superfamily protein [Arabidopsis thaliana]
Protein Classification
basic helix-loop-helix domain-containing protein( domain architecture ID 385)
basic helix-loop-helix (bHLH) domain-containing protein is a DNA-binding protein that may act as a transcription factor
List of domain hits
| Name | Accession | Description | Interval | E-value | ||
| bHLH_SF super family | cl00081 | basic Helix Loop Helix (bHLH) domain superfamily; bHLH proteins are transcriptional regulators ... |
139-203 | 7.09e-19 | ||
basic Helix Loop Helix (bHLH) domain superfamily; bHLH proteins are transcriptional regulators that are found in organisms from yeast to humans. Members of the bHLH superfamily have two highly conserved and functionally distinct regions. The basic part is at the amino end of the bHLH that may bind DNA to a consensus hexanucleotide sequence known as the E box (CANNTG). Different families of bHLH proteins recognize different E-box consensus sequences. At the carboxyl-terminal end of the region is the HLH region that interacts with other proteins to form homo- and heterodimers. bHLH proteins function as a diverse set of regulatory factors because they recognize different DNA sequences and dimerize with different proteins. The bHLH proteins can be divided to cell-type specific and widely expressed proteins. The cell-type specific members of bHLH superfamily are involved in cell-fate determination and act in neurogenesis, cardiogenesis, myogenesis, and hematopoiesis. The actual alignment was detected with superfamily member cd18919: Pssm-ID: 469605 Cd Length: 86 Bit Score: 79.41 E-value: 7.09e-19
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| Name | Accession | Description | Interval | E-value | ||
| bHLH_AtBPE_like | cd18919 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana BIG PETAL (BPE) and similar ... |
139-203 | 7.09e-19 | ||
basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana BIG PETAL (BPE) and similar proteins; The family includes several bHLH transcription factors from Arabidopsis thaliana, such as BPE, HBI1 and BEE proteins (BEE1-3). BPE, also termed AtbHLH31, or EN 88, is involved in the control of Arabidopsis petal size, by interfering with postmitotic cell expansion to limit final petal cell size. HBI1, also termed AtbHLH64, or homolog of bee2 interacting with IBH1, or EN 79, is an atypical bHLH transcription factor that acts as positive regulator of cell elongation downstream of multiple external and endogenous signals by direct binding to the promoters and activation of the two expansin genes EXPA1 and EXPA8, encoding cell wall loosening enzymes. BEEs, also termed protein Brassinosteroid enhanced expression, are positive regulators of brassinosteroid signaling. Pssm-ID: 381489 Cd Length: 86 Bit Score: 79.41 E-value: 7.09e-19
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| Name | Accession | Description | Interval | E-value | ||
| bHLH_AtBPE_like | cd18919 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana BIG PETAL (BPE) and similar ... |
139-203 | 7.09e-19 | ||
basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana BIG PETAL (BPE) and similar proteins; The family includes several bHLH transcription factors from Arabidopsis thaliana, such as BPE, HBI1 and BEE proteins (BEE1-3). BPE, also termed AtbHLH31, or EN 88, is involved in the control of Arabidopsis petal size, by interfering with postmitotic cell expansion to limit final petal cell size. HBI1, also termed AtbHLH64, or homolog of bee2 interacting with IBH1, or EN 79, is an atypical bHLH transcription factor that acts as positive regulator of cell elongation downstream of multiple external and endogenous signals by direct binding to the promoters and activation of the two expansin genes EXPA1 and EXPA8, encoding cell wall loosening enzymes. BEEs, also termed protein Brassinosteroid enhanced expression, are positive regulators of brassinosteroid signaling. Pssm-ID: 381489 Cd Length: 86 Bit Score: 79.41 E-value: 7.09e-19
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| bHLH_AtbHLH_like | cd11393 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana genes coding transcription ... |
150-202 | 8.41e-14 | ||
basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana genes coding transcription factors and similar proteins; bHLH proteins are the second largest class of plant transcription factors that regulate transcription of genes that are involve in many essential physiological and developmental process. bHLH proteins are transcriptional regulators that are found in organisms from yeast to humans. The Arabidopsis bHLH proteins that have been characterized so far have roles in regulation of fruit dehiscence, cell development (carpel, anther and epidermal), phytochrome signaling, flavonoid biosynthesis, hormone signaling and stress responses. Pssm-ID: 381399 [Multi-domain] Cd Length: 53 Bit Score: 64.51 E-value: 8.41e-14
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| bHLH_AtIND_like | cd11454 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein INDEHISCENT (IND) ... |
146-206 | 9.23e-11 | ||
basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein INDEHISCENT (IND) and similar proteins; The family includes several bHLH transcription factors from Arabidopsis thaliana, such as IND, HEC proteins (HEC1, HEC2 and HEC3) and UNE12. IND, also termed AtbHLH40, or EN 120, is a bHLH transcription regulator required for seed dispersal. It is involved in the differentiation of all three cell types required for fruit dehiscence. HEC1 (also termed AtbHLH88, or protein HECATE 1, or EN 118), HEC2 (also termed AtbHLH37, or protein HECATE 2, or EN 117) and HEC3 (also termed AtbHLH43, or protein HECATE 3, or EN 119) are required for the female reproductive tract development and fertility. Both IND and HEC proteins have been implicated in regulation of auxin signaling. They heterodimerize with SPATULA (SPT) bHLH transcription factor to regulate reproductive tract development in plant. UNE12, also termed AtbHLH59, or protein UNFERTILIZED EMBRYO SAC 12, or EN 93, is required for ovule fertilization. Pssm-ID: 381460 Cd Length: 63 Bit Score: 56.63 E-value: 9.23e-11
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| bHLH_AtPIF_like | cd11445 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana phytochrome interacting ... |
146-203 | 1.02e-09 | ||
basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana phytochrome interacting factors (PIFs) and similar proteins; The family includes several bHLH transcription factors from Arabidopsis thaliana, such as PIFs, ALC, PIL1, SPATULA, and UNE10. PIFs (PIF1, PIF3, PIF4, PIF5, PIF6 and PIF7) have been shown to control light-regulated gene expression. They directly bind to the photoactivated phytochromes and are degraded in response to light signals. ALC, also termed AtbHLH73, or protein ALCATRAZ, or EN 98, is required for the dehiscence of fruit, especially for the separation of the valve cells from the replum. It promotes the differentiation of a strip of labile non-lignified cells sandwiched between layers of lignified cells. PIL1, also termed AtbHLH124, or protein phytochrome interacting factor 3-like 1, or EN 110, is involved in responses to transient and long-term shade. It is required for the light-mediated inhibition of hypocotyl elongation and necessary for rapid light-induced expression of the photomorphogenesis- and circadian-related gene APRR9. PIL1 seems to play a role in multiple PHYB responses, such as flowering transition and petiole elongation. SPATULA, also termed AtbHLH24, or EN 99, plays a role in floral organogenesis. It promotes the growth of carpel margins and of pollen tract tissues derived from them. UNE10, also termed AtbHLH16, or protein UNFERTILIZED EMBRYO SAC 10, or EN 99, is required during the fertilization of ovules by pollen. Pssm-ID: 381451 Cd Length: 64 Bit Score: 53.53 E-value: 1.02e-09
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| bHLH_AtMEE8_like | cd19698 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein maternal effect ... |
150-203 | 6.70e-04 | ||
basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein maternal effect embryo arrest 8 (AtMEE8) and similar proteins; AtMEE8, also termed AtbHLH108, or EN 132, is a bHLH transcription factor required during early embryo development, for the endosperm formation. Pssm-ID: 381541 Cd Length: 71 Bit Score: 37.43 E-value: 6.70e-04
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| bHLH_AtIBH1_like | cd11444 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana ILI1-BINDING BHLH 1 (IBH1) ... |
168-203 | 8.13e-04 | ||
basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana ILI1-BINDING BHLH 1 (IBH1) and similar proteins; The family includes several bHLH transcription factors from Arabidopsis thaliana, such as IBH1, UPBEAT1, PAR1 and PAR2. IBH1, also termed bHLH zeta, or AtbHLH158, is an atypical and probable non DNA-binding bHLH transcription factor that acts as transcriptional repressor that negatively regulates cell and organ elongation in response to gibberellin (GA) and brassinosteroid (BR) signaling. IBH1 forms heterodimer with BHLH49, thus inhibiting DNA binding of BHLH49, which is a transcriptional activator that regulates the expression of a subset of genes involved in cell expansion by binding to the G-box motif. UPBEAT1, also termed AtbHLH151, or EN 146, is a bHLH transcription factor that modulates the balance between cellular proliferation and differentiation in root growth. It does not act through cytokinin and auxin signaling, but by repressing peroxidase expression in the elongation zone. PAR1 (also termed AtbHLH165, or protein helix-loop-helix 1, or protein phytochrome rapidly regulated 1) and PAR2 (also termed AtbHLH166, or protein helix-loop-helix 2, or protein phytochrome rapidly regulated 2) are two atypical bHLH transcription factors that act as negative regulators of a variety of shade avoidance syndrome (SAS) responses, including seedling elongation and photosynthetic pigment accumulation. They act as direct transcriptional repressor of two auxin-responsive genes, SAUR15 and SAUR68. They may function in integrating shade and hormone transcriptional networks in response to light and auxin changes. Pssm-ID: 381450 Cd Length: 57 Bit Score: 36.83 E-value: 8.13e-04
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| bHLH_AtTT8_like | cd11451 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein transparent testa 8 ... |
150-205 | 1.62e-03 | ||
basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein transparent testa 8 (TT8) and similar proteins; The family includes several bHLH transcription factors from Arabidopsis thaliana, such as TT8, EGL1, and GL3. TT8, also termed AtbHLH42, or EN 32, is involved in the control of flavonoid pigmentation and plays a key role in regulating leucoanthocyanidin reductase (BANYULS) and dihydroflavonol-4-reductase (DFR). EGL1, also termed AtbHLH2, or EN 30, or AtMYC146, or protein enhancer of GLABRA 3, is involved in epidermal cell fate specification and regulates negatively stomata formation but promotes trichome formation. GL3, also termed AtbHLH1, or AtMYC6, or protein shapeshifter, or EN 31, is involved in epidermal cell fate specification. It regulates negatively stomata formation, but, in association with TTG1 and MYB0/GL1, promotes trichome formation, branching and endoreplication. Pssm-ID: 381457 Cd Length: 75 Bit Score: 36.63 E-value: 1.62e-03
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| bHLH_AtMYC1_like | cd18918 | basic Helix-Loop-Helix (bHLH) domain found in Arabidopsis thaliana MYC1 and similar proteins; ... |
167-203 | 1.97e-03 | ||
basic Helix-Loop-Helix (bHLH) domain found in Arabidopsis thaliana MYC1 and similar proteins; MYC1, also termed AtbHLH12, or EN 58, acts as a transcription activator, when associated with MYB75/PAP1 or MYB90/PAP2. Pssm-ID: 381488 [Multi-domain] Cd Length: 70 Bit Score: 36.16 E-value: 1.97e-03
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| bHLH_SOHLH1_2 | cd18908 | basic helix-loop-helix (bHLH) domain found in the spermatogenesis- and oogenesis-specific ... |
150-195 | 3.34e-03 | ||
basic helix-loop-helix (bHLH) domain found in the spermatogenesis- and oogenesis-specific basic helix-loop-helix-containing protein (SOHLH) family; The SOHLH family includes two bHLH transcription factors, SOHLH1 and SOHLH2. They are specifically in spermatogonia and oocytes and essential for early spermatogonial and oocyte differentiation. Pssm-ID: 381478 [Multi-domain] Cd Length: 59 Bit Score: 35.39 E-value: 3.34e-03
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| bHLH_AtNAI1_like | cd11452 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein NAI1 and similar ... |
150-201 | 6.06e-03 | ||
basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein NAI1 and similar proteins; NAI1, also termed AtbHLH20, or EN 27, is a bHLH transcription activator that regulates the expression of at least NAI2, PYK10 and PBP1. It is required for and mediates the formation of endoplasmic reticulum bodies (ER bodies). It plays a role in the symbiotic interactions with the endophytes of the Sebacinaceae fungus family, such as Piriformospora indica and Sebacina. Pssm-ID: 381458 [Multi-domain] Cd Length: 75 Bit Score: 35.13 E-value: 6.06e-03
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| bHLH_AtAIG1_like | cd11455 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein AIG1 and similar ... |
141-202 | 8.98e-03 | ||
basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein AIG1 and similar proteins; AIG1, also termed AtbHLH32, or EN 54, or protein target of MOOPTEROS 5, is a transcription factor required for MONOPTEROS-dependent root initiation in embryo. Pssm-ID: 381461 Cd Length: 80 Bit Score: 34.58 E-value: 8.98e-03
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