The gene Enhancer of split m3, helix-loop-helix is referred to in FlyBase by the symbol Dmel\E(spl)m3-HLH (CG8346, FBgn0002609). It is a protein_coding_gene from Drosophila melanogaster. There is experimental evidence that it has the molecular function: sequence-specific DNA binding. It is reported to be involved in the biological process: Notch signaling pathway; compound eye development; negative regulation of transcription from RNA polymerase II promoter. 9 alleles are reported. The phenotype of these alleles is annotated with: scutellar bristle. It has one annotated transcript and one annotated polypeptide. Protein features are: Myc-type, basic helix-loop-helix (bHLH) domain; Orange; Orange subgroup. Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of high expression to a trough of very low expression. Peak expression observed within 06-12 hour embryonic stages. Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: larval central nervous system, adult midgut, larval trachea. Comments on Affy2 ProbeSet: ProbeSet 1623497_at completely aligns to an exonic region of the only FlyBase-annotated transcript isoform of HLHm3. Gene sequence location is 3R:21847545..21848849.
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FB2013_03
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The peak of Dsim\HLHm3 expression during embryogenesis occurs at 6-14 hours. Low levels of expression are also detected in adult females. By in situ hybridization, ubiquitous expression is detected throughout embryogenesis, with high levels in stage 11-15 embryos. At stage 13, expression is detected in unidentified structures in midgut walls, and in Malpighian tubules.
Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: larval central nervous system, adult midgut, larval trachea.
[download data (TSV)]
Guide to FlyAtlas expression level colors
No expression (0 - 9.999)
Low expression (10 - 99.999)
Moderate expression (100 - 499.999)
High level expression (500 - 999.999)
Very high expression (>999.999)
Linear, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
142.125
Larval Midgut
60.7
Larval Hindgut
21
Larval Malpighian Tubules
1.9
Larval Fat Body
17.1
Larval Salivary Gland
20.6
Larval Trachea
343.825
Larval Carcass
39.45
Adult Head
26.2
Adult Eye
28.425
Adult Brain
20.7
Adult Thoracic-Abdominal Ganglion
22.2
Adult Crop
6.4
Adult Midgut
163.6
Adult Hindgut
19.7
Adult Malpighian Tubules
6.2
Adult Fat Body
7.3
Adult Salivary Gland
7.7
Adult Heart
10.225
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
39.6
Adult Testis
5.8
Adult Male Accessory Gland
5.8
Adult Carcass
14.1
Expression Level Scale
None
Low
Moderate
Linear, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
142.125
Larval Midgut
60.7
Larval Hindgut
21
Larval Malpighian Tubules
1.9
Larval Fat Body
17.1
Larval Salivary Gland
20.6
Larval Trachea
343.825
Larval Carcass
39.45
Adult Head
26.2
Adult Eye
28.425
Adult Brain
20.7
Adult Thoracic-Abdominal Ganglion
22.2
Adult Crop
6.4
Adult Midgut
163.6
Adult Hindgut
19.7
Adult Malpighian Tubules
6.2
Adult Fat Body
7.3
Adult Salivary Gland
7.7
Adult Heart
10.225
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
39.6
Adult Testis
5.8
Adult Male Accessory Gland
5.8
Adult Carcass
14.1
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
142.125
Larval Midgut
60.7
Larval Hindgut
21
Larval Malpighian Tubules
1.9
Larval Fat Body
17.1
Larval Salivary Gland
20.6
Larval Trachea
343.825
Larval Carcass
39.45
Adult Head
26.2
Adult Eye
28.425
Adult Brain
20.7
Adult Thoracic-Abdominal Ganglion
22.2
Adult Crop
6.4
Adult Midgut
163.6
Adult Hindgut
19.7
Adult Malpighian Tubules
6.2
Adult Fat Body
7.3
Adult Salivary Gland
7.7
Adult Heart
10.225
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
39.6
Adult Testis
5.8
Adult Male Accessory Gland
5.8
Adult Carcass
14.1
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
142.125
Larval Midgut
60.7
Larval Hindgut
21
Larval Malpighian Tubules
1.9
Larval Fat Body
17.1
Larval Salivary Gland
20.6
Larval Trachea
343.825
Larval Carcass
39.45
Adult Head
26.2
Adult Eye
28.425
Adult Brain
20.7
Adult Thoracic-Abdominal Ganglion
22.2
Adult Crop
6.4
Adult Midgut
163.6
Adult Hindgut
19.7
Adult Malpighian Tubules
6.2
Adult Fat Body
7.3
Adult Salivary Gland
7.7
Adult Heart
10.225
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
39.6
Adult Testis
5.8
Adult Male Accessory Gland
5.8
Adult Carcass
14.1
Expression Level Scale
Very high
log, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
142.125
Larval Midgut
60.7
Larval Hindgut
21
Larval Malpighian Tubules
1.9
Larval Fat Body
17.1
Larval Salivary Gland
20.6
Larval Trachea
343.825
Larval Carcass
39.45
Adult Head
26.2
Adult Eye
28.425
Adult Brain
20.7
Adult Thoracic-Abdominal Ganglion
22.2
Adult Crop
6.4
Adult Midgut
163.6
Adult Hindgut
19.7
Adult Malpighian Tubules
6.2
Adult Fat Body
7.3
Adult Salivary Gland
7.7
Adult Heart
10.225
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
39.6
Adult Testis
5.8
Adult Male Accessory Gland
5.8
Adult Carcass
14.1
Expression Level Scale
None
Low
Moderate
High
log, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
142.125
Larval Midgut
60.7
Larval Hindgut
21
Larval Malpighian Tubules
1.9
Larval Fat Body
17.1
Larval Salivary Gland
20.6
Larval Trachea
343.825
Larval Carcass
39.45
Adult Head
26.2
Adult Eye
28.425
Adult Brain
20.7
Adult Thoracic-Abdominal Ganglion
22.2
Adult Crop
6.4
Adult Midgut
163.6
Adult Hindgut
19.7
Adult Malpighian Tubules
6.2
Adult Fat Body
7.3
Adult Salivary Gland
7.7
Adult Heart
10.225
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
39.6
Adult Testis
5.8
Adult Male Accessory Gland
5.8
Adult Carcass
14.1
Expression Level Scale
None
Low
Moderate
High
log, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
142.125
Larval Midgut
60.7
Larval Hindgut
21
Larval Malpighian Tubules
1.9
Larval Fat Body
17.1
Larval Salivary Gland
20.6
Larval Trachea
343.825
Larval Carcass
39.45
Adult Head
26.2
Adult Eye
28.425
Adult Brain
20.7
Adult Thoracic-Abdominal Ganglion
22.2
Adult Crop
6.4
Adult Midgut
163.6
Adult Hindgut
19.7
Adult Malpighian Tubules
6.2
Adult Fat Body
7.3
Adult Salivary Gland
7.7
Adult Heart
10.225
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
39.6
Adult Testis
5.8
Adult Male Accessory Gland
5.8
Adult Carcass
14.1
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
142.125
Larval Midgut
60.7
Larval Hindgut
21
Larval Malpighian Tubules
1.9
Larval Fat Body
17.1
Larval Salivary Gland
20.6
Larval Trachea
343.825
Larval Carcass
39.45
Adult Head
26.2
Adult Eye
28.425
Adult Brain
20.7
Adult Thoracic-Abdominal Ganglion
22.2
Adult Crop
6.4
Adult Midgut
163.6
Adult Hindgut
19.7
Adult Malpighian Tubules
6.2
Adult Fat Body
7.3
Adult Salivary Gland
7.7
Adult Heart
10.225
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
39.6
Adult Testis
5.8
Adult Male Accessory Gland
5.8
Adult Carcass
14.1
Expression Level Scale
None
Low
Moderate
High
Very high
Heatmap
Tissue
Expression Level
Larval Central Nervous System
Larval Midgut
Larval Hindgut
Larval Malpighian Tubules
Larval Fat Body
Larval Salivary Gland
Larval Trachea
Larval Carcass
Adult Head
Adult Eye
Adult Brain
Adult Thoracic-Abdominal Ganglion
Adult Crop
Adult Midgut
Adult Hindgut
Adult Malpighian Tubules
Adult Fat Body
Adult Salivary Gland
Adult Heart
Adult VirginFemale Spermatheca
Adult InseminatedFemale Spermatheca
Adult Ovary
Adult Testis
Adult Male Accessory Gland
Adult Carcass
FlyAtlas Organ/Tissue Expression, larval vs. adult
Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of high expression to a trough of very low expression. Peak expression observed within 06-12 hour embryonic stages.
[download data (TSV)]
Please Note FlyBase no
longer curates genomic clone accessions so this list
may not be complete
cDNA Clones ( 51 )
Please Note
This section lists
cDNAs and ESTs that fall within the genomic extent
of the gene model, which may include cDNAs and ESTs
of genes within introns, or of overlapping genes.
Please see GBrowse for alignment of the cDNAs and ESTs
to the gene model.
The distinct expression patterns of genes of the E(spl) complex in imaginal tissues depend to a significant degree on the capacity of their transcriptional cis-regulatory apparatus to respond selectively to direct proneural and Su(H)-mediated activation, often in a subset of the territories and cells in which proneural and Su(H) regulation is occurring.
The bHLH domains of the gene products encoded by the E(spl)-C and AS-C differ in their ability to form homo- and/or heterodimers. The interactions established through the bHLH link the products of the two complexes in a single interaction network which may function to ensure that a given cell retains the capacity to choose between epidermoblast and neuroblast fates until the cell becomes definitively determined.
Almost all E(spl)-complex bHLH proteins can homo-hetero-dimerise, but not with the same efficiency. All E(spl)-complex bHLH proteins interact with gro protein via their C-terminal domain. E(spl)-complex bHLH proteins interact with proneural proteins, with members of the E(spl) family exhibiting distinct preferences for different proneural proteins.
The bristle loss phenotype of H mutants can be suppressed by deleting components of the E(spl)-complex. The degree of suppression depends on both the number and identity of E(spl)-complex transcription units removed.
Arrangement and sequence of E(spl)-complex genes in D.melanogaster and D.hydei revealed that the E(spl)-gene, and the structure of complex are highly conserved, suggesting that each individual gene, as well as the organization of the complex, is of functional importance.
E(spl) region gene encoding HLH protein identified by low stringency hybridization to previously defined HLHm5 and HLHm7 probes. On basis of cross-hybridization and sequence data the E(spl) HLH genes can be placed into 3 groups. The first includes E(spl) and HLHm5, the second includes HLHm7, HLHm3, HLHmβ and HLHmγ and the last includes HLHmδ.
Genes of the E(spl) complex act as a functional unit composed of redundant genes which can partially substitute for each other. Eight E(spl)-region genes are required for the development of neurectodermal cells: HLHmδ, HLHmβ, HLHmγ, HLHm3, HLHm5, HLHm7, E(spl) and gro. The E(spl)-region gene m4 may also play a role in this process.
Transcriptional Dynamics Elicited by a Short Pulse of Notch Activation Involves Feed-Forward Regulation by E(spl)/Hes Genes. [FBrf0220474]
Engel et al., 2012, Toxicol. In Vitro 26(3): 485--492
The effects of methylmercury on Notch signaling during embryonic neural development in Drosophila melanogaster. [FBrf0217650]
Baker et al., 2011, BMC Evol. Biol. 11: 354
The Enhancer of split complex arose prior to the diversification of schizophoran flies and is strongly conserved between Drosophila and stalk-eyed flies (Diopsidae). [FBrf0217296]
Barry et al., 2011, Development 138(9): 1759--1769
The Drosophila STUbL protein Degringolade limits HES functions during embryogenesis. [FBrf0213458]
Cave et al., 2011, Mol. Cell. Biol. 31(1): 22--29
Differential Regulation of Transcription through Distinct Suppressor of Hairless DNA Binding Site Architectures during Notch Signaling in Proneural Clusters. [FBrf0212524]
Duan et al., 2011, EMBO J. 30(15): 3120--3133
Insensitive is a corepressor for Suppressor of Hairless and regulates Notch signalling during neural development. [FBrf0214638]
Endo et al., 2011, Nat. Neurosci. 15(2): 224--233
Chromatin modification of Notch targets in olfactory receptor neuron diversification. [FBrf0217319]
Fay et al., 2011, Curr. Biol. 21(19): 1624--1634
Cohesin selectively binds and regulates genes with paused RNA polymerase. [FBrf0216412]
Johnson et al., 2011, Development 138(21): 4627--4638
JAK/Stat signaling regulates heart precursor diversification in Drosophila. [FBrf0216404]
Leonardi et al., 2011, Development 138(16): 3569--3578
Multiple O-glucosylation sites on Notch function as a buffer against temperature-dependent loss of signaling. [FBrf0214548]
Mulligan et al., 2011, Mol. Cell 42(5): 689--699
A SIRT1-LSD1 Corepressor Complex Regulates Notch Target Gene Expression and Development. [FBrf0213865]
Toku et al., 2011, Comput. Biol. Chem. 35(5): 282--292
Reconstruction and crosstalk of protein-protein interaction networks of Wnt and Hedgehog signaling in Drosophila melanogaster. [FBrf0216393]