FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Dmel\esg
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General Information
Symbol
Dmel\esg
Species
D. melanogaster
Name
escargot
Annotation Symbol
CG3758
Feature Type
FlyBase ID
FBgn0287768
Gene Model Status
Stock Availability
Gene Summary
escargot (esg) encodes a Snail-type transcription factor that contributes to stem cell maintenance, tracheal morphogenesis and neuroblast differentiation. [Date last reviewed: 2019-03-07] (FlyBase Gene Snapshot)
Also Known As

l(2)35Ce, l(2)br43, dgl, Fusion-1, wizard

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
2-51
RefSeq locus
NT_033779 REGION:15333866..15336138
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (31 terms)
Molecular Function (5 terms)
Terms Based on Experimental Evidence (3 terms)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
Biological Process (25 terms)
Terms Based on Experimental Evidence (24 terms)
CV Term
Evidence
References
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from genetic interaction with UniProtKB:P08044
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
involved_in gravitaxis
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from genetic interaction with FLYBASE:sc; FB:FBgn0004170
inferred from direct assay
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
Cellular Component (1 term)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
located_in nucleus
inferred from direct assay
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
is_active_in nucleus
inferred from biological aspect of ancestor with PANTHER:PTN002810938
located_in nucleus
inferred by curator from GO:0003677
Protein Family (UniProt)
Belongs to the snail C2H2-type zinc-finger protein family. (P25932)
Summaries
Gene Snapshot
escargot (esg) encodes a Snail-type transcription factor that contributes to stem cell maintenance, tracheal morphogenesis and neuroblast differentiation. [Date last reviewed: 2019-03-07]
Gene Group (FlyBase)
C2H2 ZINC FINGER TRANSCRIPTION FACTORS -
Zinc finger C2H2 transcription factors are sequence-specific DNA binding proteins that regulate transcription. They possess DNA-binding domains that are formed from repeated Cys2His2 zinc finger motifs. (Adapted from PMID:1835093, FBrf0220103 and FBrf0155739).
Protein Function (UniProtKB)
Transcription factor that can both stimulate and repress transcription. Binds to the consensus DNA sequence 5'-A/GCAGGTG-3'. Regulates cell motility and adhesion during tracheal morphogenesis by stimulating transcription of the DE-cadherin gene shg at branch tips, thereby promoting tracheal tube fusion. Maintains diploidy in imaginal cells by inhibiting the transcription of genes required for endoreplication. Required for development of the genital disk and acts as an intrinsic determinant of wing cell fate. The somatic protein is required for maintenance of male germ cells. Acts with other members of the snail protein family to control embryonic central nervous system development.
(UniProt, P25932)
Summary (Interactive Fly)

transcription factor - zinc finger - regulates the cell cycle in histoblasts - Escargot and Scratch regulate neural commitment by antagonizing Notch-activity in sensory organs - controls the sequential specification of two tracheal tip cell types by suppressing FGF signaling

Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\esg for information on other features

To submit a correction to a gene model please use the Contact FlyBase form

Protein Domains (via Pfam)
Isoform displayed:
Pfam protein domains
InterPro name
classification
start
end
Protein Domains (via SMART)
Isoform displayed:
SMART protein domains
InterPro name
classification
start
end
Structure
Protein 3D structure   (Predicted by AlphaFold)   (AlphaFold entry P25932)

If you don't see a structure in the viewer, refresh your browser.
Model Confidence:
  • Very high (pLDDT > 90)
  • Confident (90 > pLDDT > 70)
  • Low (70 > pLDDT > 50)
  • Very low (pLDDT < 50)

AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Some regions with low pLDDT may be unstructured in isolation.

Experimentally Determined Structures
Crossreferences
Comments on Gene Model

Gene model reviewed during 5.52

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0080734
2273
470
Additional Transcript Data and Comments
Reported size (kB)

2.3 (northern blot)

Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
UniProt
RefSeq ID
GenBank
FBpp0080293
52.0
470
6.87
Polypeptides with Identical Sequences

There is only one protein coding transcript and one polypeptide associated with this gene

Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Crossreferences
InterPro - A database of protein families, domains and functional sites
Linkouts
Sequences Consistent with the Gene Model
Mapped Features

Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\esg using the Feature Mapper tool.

External Data
Crossreferences
Linkouts
Expression Data
Testis-specificity index

The testis specificity index was calculated from modENCODE tissue expression data by Vedelek et al., 2018 to indicate the degree of testis enrichment compared to other tissues. Scores range from -2.52 (underrepresented) to 5.2 (very high testis bias).

-0.40

Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
dorsal ectoderm anlage

Comment: anlage in statu nascendi

ventral ectoderm anlage

Comment: anlage in statu nascendi

antennal anlage in statu nascendi

Comment: reported as procephalic ectoderm anlage in statu nascendi

dorsal head epidermis anlage in statu nascendi

Comment: reported as procephalic ectoderm anlage in statu nascendi

visual anlage in statu nascendi

Comment: reported as procephalic ectoderm anlage in statu nascendi

antennal anlage

Comment: reported as procephalic ectoderm anlage

central brain anlage

Comment: reported as procephalic ectoderm anlage

dorsal head epidermis anlage

Comment: reported as procephalic ectoderm anlage

visual anlage

Comment: reported as procephalic ectoderm anlage

antennal primordium

Comment: reported as procephalic ectoderm primordium

central brain primordium

Comment: reported as procephalic ectoderm primordium

visual primordium

Comment: reported as procephalic ectoderm primordium

dorsal head epidermis primordium

Comment: reported as procephalic ectoderm primordium

lateral head epidermis primordium

Comment: reported as procephalic ectoderm primordium

ventral head epidermis primordium

Comment: reported as procephalic ectoderm primordium

antennal primordium

Comment: reported as procephalon primordium

central brain primordium

Comment: reported as procephalon primordium

dorsal head epidermis primordium

Comment: reported as head epidermis primordium

lateral head epidermis primordium

Comment: reported as head epidermis primordium

ventral head epidermis primordium

Comment: reported as head epidermis primordium

visual primordium

Comment: reported as procephalon primordium

dorsal imaginal tissue

Comment: reported as dorsal imaginal precursor specific anlage

ventral imaginal tissue

Comment: reported as ventral imaginal precursor specific anlage

northern blot
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

In embryonic stage 10, esg is expressed in the endoderm. At stage 11, the endoderm has split into an outer layer and an inner layer. esg is lost from the outer layer but is maintained transiently in all cells of the inner layer. At stage 14, esg is expressed in a subset of the inner cells that represent the adult midgut progenitors. In larvae and pupae, esg reporters are observed in adult midgut progenitor cells. In pupae, expression is observed in cells that are precursors to the adult intestinal stem cells.

Expression pattern inferred from unspecified enhancer trap line.

esg transcript is detected in stage 14 of embryogenesis, in presumptive wing, leg, and haltere discs, as well as in the histoblast nests, head, trachea, and the central nervous system. At stage 16, esg transcript is still present in imaginal cells and in the presumptive head. In third instar larvae, esg transcript is expressed in the the central nervous system and in the imaginal discs. esg expression is strongest in the dorsal section of the leg, wing, haltere and eye-antennal discs of third instar larvae.

esg transcripts are expressed throughout embryogenesis and are again detected in pupal stages. In embryos, expression is primarily ectodermal and the pattern is very dynamic. Expression is detected in patches along the dorsal surface in the syncytial blastoderm and at the cellular blastoderm stage. Just prior to gastrulation, the dorsal expression disappears and a grid-like pattern of expression is seen in the neurogenic region of the ventral ectoderm. As germband extension begins, this develops into a pattern of longitudinal stripes in the neurogenic ectoderm. At the beginning of germband retraction, expression is most prominent in the cells of the ventral midline. During germband retraction the pattern is very dynamic including transient expression in cells of the peripheral nervous system. After germband retraction, expression is strong in the leg discs, wing disc, haltere disc and genital disc. Strong expression is also observed in the head region in cells outlining the site of head involution, in the dorsal ridge and in the frontal sac. Staining is also observed in histoblast cells of the abdominal segments.

Marker for
Subcellular Localization
CV Term
Polypeptide Expression
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

esg protein labels several cells in the leg primordia in stage 15 embryos. However, esg labeling is excluded from the center of the disc. There is significant overlap with Dll staining outside of the center of the disc. All esg positive cells also express hth a marker for proximal trunk and limb primordia. Therefore, esg serves as a cell specific marker for the proximal leg domain in the trunk region.

At stage 5 of embryogenesis, sna protein is expressed ventrally, in the presumptive mesoderm, while esg protein is expressed in the dorsal region. By stage 13, both sna and esg proteins are expressed in presumptive wing and haltere discs. At stage 15, sna and esg proteins are also expressed in the genital disc. The esg protein is detected in the posterior spiracle and in the presumptive leg discs at stage 15, while the sna protein is expressed in a far smaller number of cells in the presumptive leg discs.

Marker for
Subcellular Localization
CV Term
Evidence
References
located_in nucleus
inferred from direct assay
Expression Deduced from Reporters
Reporter: P{enG}6
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{enG}esgG66
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{esg-GAL4.FC}
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{esg-lacZ.3.6-1}
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{esg-lacZ.C2}
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{GAL4}MH766
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{GawB}05730B
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{GawB}esgc287a
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{GawB}esgNP7397
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{GawB}NP5130
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{GawB}NP6267
Stage
Tissue/Position (including subcellular localization)
Reference
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{GawB}p127
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{lacW}esg4B7
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{lacW}esgB7-2-22
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{lacW}esgk00606
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{lacW}esgk10811
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{lArB}A507.2M2
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{PTT-un}P01986
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{PZ}esg05729
Stage
Tissue/Position (including subcellular localization)
Reference
Reporter: P{ST.lexA::HG}RJ-4
Stage
Tissue/Position (including subcellular localization)
Reference
Stage
Tissue/Position (including subcellular localization)
Reference
Stage
Tissue/Position (including subcellular localization)
Reference
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\esg in JBrowse
RNA-Seq by Region - Search RNA-Seq expression levels by exon or genomic region
Reference
See Gelbart and Emmert, 2013 for analysis details and data files for all genes.
Developmental Proteome: Life Cycle
Developmental Proteome: Embryogenesis
External Data and Images
Linkouts
DRscDB - A single-cell RNA-seq resource for data mining and data comparison across species
EMBL-EBI Single Cell Expression Atlas - Single cell expression across species
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
Images
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 120 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 33 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of esg
Transgenic constructs containing regulatory region of esg
Aberrations (Deficiencies and Duplications) ( 129 )
Inferred from experimentation ( 129 )
Gene disrupted in
Gene not disrupted in
Gene not duplicated in
Inferred from location ( 3 )
Variants
Variant Molecular Consequences
Alleles Representing Disease-Implicated Variants
Phenotypes
For more details about a specific phenotype click on the relevant allele symbol.
Lethality
Allele
Sterility
Allele
Other Phenotypes
Allele
Phenotype manifest in
Allele
leg & trichome | somatic clone, with Scer\GAL4Act5C.PI
macrochaeta & scutum, with Scer\GAL4sca-537.4
microchaeta & scutum, with Scer\GAL4sca-537.4
scutellar bristle & tormogen cell, with Scer\GAL4455.2
scutellar bristle & trichogen cell, with Scer\GAL4455.2
Orthologs
Human Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Homo sapiens (Human) (198)
7 of 14
Yes
Yes
5 of 14
No
Yes
5 of 14
No
No
1  
2 of 14
No
No
2 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
9  
1 of 14
No
No
2  
1 of 14
No
No
4  
1 of 14
No
No
Hsap\LOC344065
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
0  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
2  
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Hsap\ZNF660-ZNF197
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (32)
8 of 14
Yes
Yes
5 of 14
No
No
4 of 14
No
No
3 of 14
No
No
3 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
Mus musculus (laboratory mouse) (71)
8 of 14
Yes
Yes
5 of 14
No
No
4 of 14
No
No
3 of 14
No
No
3 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (41)
7 of 13
Yes
Yes
7 of 13
Yes
Yes
3 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
Yes
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
Danio rerio (Zebrafish) (36)
8 of 14
Yes
Yes
7 of 14
No
Yes
5 of 14
No
No
5 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (10)
7 of 14
Yes
Yes
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Anopheles gambiae (African malaria mosquito) (48)
10 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (5)
1 of 13
Yes
No
1 of 13
Yes
Yes
1 of 13
Yes
Yes
1 of 13
Yes
Yes
1 of 13
Yes
No
Saccharomyces cerevisiae (Brewer's yeast) (0)
Schizosaccharomyces pombe (Fission yeast) (0)
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:esg. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (54)
9 of 13
7 of 13
3 of 13
3 of 13
3 of 13
3 of 13
2 of 13
2 of 13
2 of 13
2 of 13
2 of 13
2 of 13
2 of 13
1 of 13
1 of 13
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1 of 13
1 of 13
Human Disease Associations
FlyBase Human Disease Model Reports
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 0 )
Allele
Disease
Evidence
References
Potential Models Based on Orthology ( 0 )
Human Ortholog
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 2 )
Allele
Disease
Interaction
References
Disease Associations of Human Orthologs (via DIOPT v9.1 and OMIM)
Note that ortholog calls supported by only 1 or 2 algorithms (DIOPT score < 3) are not shown.
Homo sapiens (Human)
Gene name
Score
OMIM
OMIM Phenotype
DO term
Complementation?
Transgene?
Functional Complementation Data
Functional complementation data is computed by FlyBase using a combination of the orthology data obtained from DIOPT and OrthoDB and the allele-level genetic interaction data curated from the literature.
Interactions
Summary of Physical Interactions
Summary of Genetic Interactions
Interaction Browsers

Please look at the allele data for full details of the genetic interactions
Starting gene(s)
Interaction type
Interacting gene(s)
Reference
suppressible
suppressible
Starting gene(s)
Interaction type
Interacting gene(s)
Reference
suppressible
External Data
Linkouts
Pathways
Signaling Pathways (FlyBase)
Metabolic Pathways
FlyBase
External Links
External Data
Linkouts
Class of Gene
Genomic Location and Detailed Mapping Data
Chromosome (arm)
2L
Recombination map
2-51
Cytogenetic map
Sequence location
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
35D2-35D2
Limits computationally determined from genome sequence between P{EP}esgEP633&P{PZ}esg07082 and P{lacW}CycEk05007&P{lacW}CycEk02602
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
35D1-35D2
(determined by in situ hybridisation)
35D1-35D2
(determined by in situ hybridisation) 35D1--4 (determined by in situ hybridisation) 35D3--4 (determined by in situ hybridisation) 35C1--3 (determined by in situ hybridisation)
35E-35E
(determined by in situ hybridisation)
35D-35D
(determined by in situ hybridisation)
35D1-35D2
(determined by in situ hybridisation) 35D1--35D4 (determined by in situ hybridisation)
35C-35C
(determined by in situ hybridisation)
Experimentally Determined Recombination Data
Location
Left of (cM)
Right of (cM)
Notes
Stocks and Reagents
Stocks (61)
Genomic Clones (18)
cDNA Clones (74)
 

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 JBrowse for alignment of the cDNAs and ESTs to the gene model.

cDNA clones, fully sequenced
BDGP DGC clones
Other clones
Drosophila Genomics Resource Center cDNA clones

For each fully sequenced cDNA the DGRC maintains various forms of the cDNA (e.g tagged or untagged) in several different host vectors for subsequent cloning and expression in Drosophila and Drosophila cell lines.

    cDNA Clones, End Sequenced (ESTs)
    BDGP DGC clones
      RNAi and Array Information
      Linkouts
      Antibody Information
      Laboratory Generated Antibodies
      Commercially Available Antibodies
       
      Cell Line Information
      Publicly Available Cell Lines
       
        Other Stable Cell Lines
         
          Other Comments

          The esg product is required for the survival and/or maintenance of secondary and tertiary pigment cells in the eye.

          Expression is enriched in embryonic gonads.

          esg and hth regulate proximodistal patterning in the distal domain of the leg.

          Pairing sensitive alleles do not exhibit long-distance silencing interactions with P-element insertions containing the Mcp-element.

          Expression of tracheal fusion marker genes esg and hdc is induced by activation of the dpp pathway.

          Mutants isolated in a screen of the second chromosome identifying genes affecting disc morphology.

          esg is necessary for hdc expression in the fusion cells and also sufficient for hdc expression in the cells of the pantip group of the dorsal and lateral branches.

          Expression of esg in the neuroectoderm prefigures that of the ASC genes. Dorsoventral pattern of esg expression in the blastoderm is determined by three independent repressive cues (dpp, sna and twi). Egfr represses esg expression within the intermediate column.

          esg and sna function as intrinsic determinants of wing cell fate.

          esg and sna expression in the wing are maintained by their auto- and crossactivation, and control the same set of genes required for wing development.

          In G2, esg is required to maintain a high level of G2/M cdk (a complex that includes the catalytic subunit encoded by cdc2 and a regulatory subunit G2 cyclin) that actively inhibits the entry into S phase.

          esg is a member of the lymph gland enhancer detector strains.

          esg is required for tracheal branch fusion and inhibits terminal branching by dorsal branch fusion cells.

          esg is a key regulator of cell adhesion and motility in tracheal morphogenesis.

          Overexpression of shg rescues the defect in one of the fusion points in esg mutants.

          esg positively regulates transcription of shg.

          esg is required for the continual renewal of the male germline after pupariation.

          esg is required for expression of many of the genes required for fusion of the separate developing tracheal branching units.

          esg protein is a transcriptional regulator that preferentially binds as a monomer, with high affinity, to a specific sequence (identical to the E2 box) in vitro and acts as a repressor of sc/da-dependent transcription in vivo.

          A pairing sensitive site (PS site) has been identified in regulatory DNA from the esg gene.

          Analysis of mutants suggests that one of the normal functions of esg may be the maintenance of diploidy in imaginal cells.

          esg shows a high degree of similarity with sna.

          5 alleles are discussed but are not named.

          Relationship to Other Genes
          Source for database merge of

          Source for merge of: esg BG01042

          Additional comments

          FlyBase curator comment: "EP2370" overexpression phenotype stated to be due to its effect on esg but orientation of the P{EP} element suggests otherwise.

          Nomenclature History
          Source for database identify of

          Source for identity of: esg l(2)35Ce

          Source for identity of: esg CG3758

          Nomenclature comments
          Etymology
          Synonyms and Secondary IDs (27)
          Reported As
          Symbol Synonym
          BG01042
          esg
          (Blanco Mendana et al., 2025, Castelló-Sanjuán et al., 2025, Janssens et al., 2025, Joly et al., 2025, Park et al., 2025, Plygawko et al., 2025, Rubanova et al., 2025, Balakireva et al., 2024, Feng et al., 2024, Kim et al., 2024, Mattila et al., 2024, Sood et al., 2024, Stewart et al., 2024, Zambrano-Tipan et al., 2024, Chen et al., 2023, Hodge et al., 2023, Josserand et al., 2023, Pang et al., 2023, Petsakou et al., 2023, Tang et al., 2023, Tuo et al., 2023, Zhai et al., 2023, Chen et al., 2022, Deshpande et al., 2022, Guo et al., 2022, National Institute of Genetics Fly Stocks, 2022-, Pegoraro et al., 2022, Sênos Demarco et al., 2022, Sreejith et al., 2022, Theodorou et al., 2022, Xiu et al., 2022, Zhang and Edgar, 2022, Buddika et al., 2021, Chen et al., 2021, Ferguson et al., 2021, Hung et al., 2021, Michki et al., 2021, Resnik-Docampo et al., 2021, Sheng et al., 2021, Yuen et al., 2021, Bosch et al., 2020, Hung et al., 2020, Khaminets et al., 2020, Mehrotra et al., 2020, Na et al., 2020, Rust et al., 2020, Strilbytska et al., 2020, Ulgherait et al., 2020, Wang and Spradling, 2020, Best, 2019, Camara et al., 2019, Cardozo Gizzi et al., 2019, Guo et al., 2019, Hu and Jasper, 2019, Hudry et al., 2019, Kockel et al., 2019, Liu et al., 2019, Shokri et al., 2019, Singh et al., 2019, Zwick et al., 2019, Aughey et al., 2018, Bischof et al., 2018, Doupé et al., 2018, Duan et al., 2018, Kavaler et al., 2018, Na et al., 2018, Nazer et al., 2018, Perochon et al., 2018, Perrimon and Doupé, 2018.5.15, Resende et al., 2018, Symonenko et al., 2018, Tan et al., 2018, Tang et al., 2018, Erceg et al., 2017, Jin et al., 2017, Karaiskos et al., 2017, Li et al., 2017, Lucchetta and Ohlstein, 2017, Meltzer et al., 2017, Requena et al., 2017, Simões et al., 2017, Transgenic RNAi Project members, 2017-, Jiang et al., 2016, Kockel et al., 2016, Kuleesha et al., 2016, Ou et al., 2016, Ramat et al., 2016, Sarov et al., 2016, Antonello et al., 2015, Apitz and Salecker, 2015, Doggett et al., 2015, Dutta et al., 2015, Jasper, 2015, Kim et al., 2015, Kohlmaier et al., 2015, Kok et al., 2015, Lu and Li, 2015, model organism Encyclopedia of Regulatory Network (modERN) Project, 2015-, Nadimpalli et al., 2015, Sanchez-Díaz et al., 2015, Schertel et al., 2015, Sun et al., 2015, Zhai et al., 2015, Biteau and Jasper, 2014, Chandran et al., 2014, Chen and Krasnow, 2014, Ciglar et al., 2014, Driver and Ohlstein, 2014, Huang et al., 2014, Li et al., 2014, Li et al., 2014, Long et al., 2014, Loza-Coll et al., 2014, Okumura et al., 2014, Rogers and Rogina, 2014, Voog et al., 2014, Aleksic et al., 2013, Bai et al., 2013, Caviglia and Luschnig, 2013, Chen et al., 2013, Djiane et al., 2013, Guo et al., 2013, Guss et al., 2013, Li et al., 2013, Marianes and Spradling, 2013, Pandey et al., 2013, Rera et al., 2013, Roti et al., 2013, Zeng et al., 2013, Zhao et al., 2013, Bond and Foley, 2012, de Navascués et al., 2012, Foronda et al., 2012, Hadar et al., 2012, Hainaut et al., 2012, Japanese National Institute of Genetics, 2012.5.21, Kapuria et al., 2012, Loncle and Williams, 2012, Poernbacher et al., 2012, Popkova et al., 2012, Toledano et al., 2012, Yang et al., 2012, Zhou et al., 2012, Abruzzi et al., 2011, Apidianakis and Rahme, 2011, Bellen et al., 2011, Hartl et al., 2011, Hochmuth et al., 2011, Jiang et al., 2011, Micchelli et al., 2011, Nakajima et al., 2011, Okegbe and DiNardo, 2011, Perdigoto et al., 2011, Pi et al., 2011, Simons and Clevers, 2011, Strand and Micchelli, 2011, Takashima et al., 2011, Takashima et al., 2011, Wang et al., 2011, Beebe et al., 2010, Biteau et al., 2010, Buchon et al., 2010, Estella and Mann, 2010, Francis et al., 2010, Jiang et al., 2010, Kazemi-Esfarjani, 2010.6.21, Kim et al., 2010, Magwire et al., 2010, Park et al., 2010, Reis et al., 2010, Salzer et al., 2010, Wang et al., 2010, Zeng et al., 2010, Apidianakis et al., 2009, Buchon et al., 2009, Buchon et al., 2009, Chau et al., 2009, Chung et al., 2009, Flaherty et al., 2009, Grieder et al., 2009, Harbison et al., 2009, Jiang and Edgar, 2009, Jiang et al., 2009, Lee et al., 2009, McKay et al., 2009, Mortimer and Moberg, 2009, Southall and Brand, 2009, Biteau et al., 2008, Cao et al., 2008, Choi et al., 2008, Maeda et al., 2008, Stofanko et al., 2008, Voog et al., 2008, Araujo et al., 2007, Buszczak et al., 2007, Inoue and Hayashi, 2007, Kankel et al., 2007, Kitadate et al., 2007, Li et al., 2007, Minidorff et al., 2007, Minidorff et al., 2007, Mortimer and Moberg, 2007, Quinones-Coello, 2007, Ryder et al., 2007, Sandmann et al., 2007, Singh et al., 2007, Wada et al., 2007, Zhang et al., 2007, Armstrong et al., 2006, Casper and Van Doren, 2006, Choksi et al., 2006, Jiang and Crews, 2006, Jung et al., 2006, Le Bras and Van Doren, 2006, Molnar et al., 2006, Negre et al., 2006, Shigenobu et al., 2006, Shigenobu et al., 2006, Wheeler et al., 2006, Bolinger and Boekhoff-Falk, 2005, Brown and Feder, 2005, Kanuka et al., 2005, Staudt et al., 2005, Jiang and Crews, 2003, Streit et al., 2002)
          flg
          l(2)07082
          l(2)4B7
          shof
          Name Synonyms
          D.m.Escargot
          double glazed
          Secondary FlyBase IDs
          • FBgn0001981
          • FBgn0000445
          • FBgn0011711
          • FBgn0015967
          • FBgn0263955
          Datasets (0)
          Study focus (0)
          Experimental Role
          Project
          Project Type
          Title
          Study result (0)
          Result
          Result Type
          Title
          External Crossreferences and Linkouts ( 56 )
          Sequence Crossreferences
          NCBI Gene - Gene integrates information from a wide range of species. A record may include nomenclature, Reference Sequences (RefSeqs), maps, pathways, variations, phenotypes, and links to genome-, phenotype-, and locus-specific resources worldwide.
          GenBank Protein - A collection of sequences from several sources, including translations from annotated coding regions in GenBank, RefSeq and TPA, as well as records from SwissProt, PIR, PRF, and PDB.
          RefSeq - A comprehensive, integrated, non-redundant, well-annotated set of reference sequences including genomic, transcript, and protein.
          UniProt/GCRP - The gene-centric reference proteome (GCRP) provides a 1:1 mapping between genes and UniProt accessions in which a single 'canonical' isoform represents the product(s) of each protein-coding gene.
          UniProt/Swiss-Prot - Manually annotated and reviewed records of protein sequence and functional information
          UniProt/TrEMBL - Automatically annotated and unreviewed records of protein sequence and functional information
          Other crossreferences
          AlphaFold DB - AlphaFold provides open access to protein structure predictions for the human proteome and other key proteins of interest, to accelerate scientific research.
          DRscDB - A single-cell RNA-seq resource for data mining and data comparison across species
          EMBL-EBI Single Cell Expression Atlas - Single cell expression across species
          FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
          InterPro - A database of protein families, domains and functional sites
          KEGG Genes - Molecular building blocks of life in the genomic space.
          MARRVEL_MODEL - MARRVEL (model organism gene)
          Linkouts
          FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
          FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
          Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
          iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
          Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
          References (553)