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 ... |
181-220 | 5.36e-12 | ||
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: 59.76 E-value: 5.36e-12
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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 ... |
181-220 | 5.36e-12 | ||
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: 59.76 E-value: 5.36e-12
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| HLH | smart00353 | helix loop helix domain; |
193-220 | 4.97e-03 | ||
helix loop helix domain; Pssm-ID: 197674 [Multi-domain] Cd Length: 53 Bit Score: 34.12 E-value: 4.97e-03
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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 ... |
181-220 | 5.36e-12 | ||
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: 59.76 E-value: 5.36e-12
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| bHLH_AtbHLH_like | cd11393 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana genes coding transcription ... |
192-221 | 1.82e-09 | ||
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: 51.80 E-value: 1.82e-09
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| bHLH_AtIND_like | cd11454 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein INDEHISCENT (IND) ... |
188-221 | 7.82e-08 | ||
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: 47.77 E-value: 7.82e-08
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| bHLH_AtPIF_like | cd11445 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana phytochrome interacting ... |
195-219 | 1.71e-03 | ||
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: 35.81 E-value: 1.71e-03
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| bHLH_AtBIM_like | cd11453 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana BES1-interacting Myc-like ... |
193-218 | 2.29e-03 | ||
basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana BES1-interacting Myc-like proteins (BIMs) and similar proteins; The family includes Arabidopsis thaliana BIM1 and its homologs (BIM2 and BIM3), which are bHLH transcription factors that interact with BES1 to regulate transcription of Brassinosteroid (BR)-induced gene. BR regulates many growth and developmental processes such as cell elongation, vascular development, senescence stress responses, and photomorphogenesis. BIM1 heterodimerize with BES1 and bind to E-box sequences present in many BR-induced promoters to regulated BR-induced genes. Pssm-ID: 381459 Cd Length: 77 Bit Score: 35.91 E-value: 2.29e-03
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| bHLH_AtMEE8_like | cd19698 | basic helix-loop-helix (bHLH) domain found in Arabidopsis thaliana protein maternal effect ... |
192-216 | 2.31e-03 | ||
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: 35.50 E-value: 2.31e-03
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| HLH | smart00353 | helix loop helix domain; |
193-220 | 4.97e-03 | ||
helix loop helix domain; Pssm-ID: 197674 [Multi-domain] Cd Length: 53 Bit Score: 34.12 E-value: 4.97e-03
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