FB2024_03 , released June 25, 2024
Allele: Dmel\esg35Ce-3
Open Close
General Information
Symbol
Dmel\esg35Ce-3
Species
D. melanogaster
Name
FlyBase ID
FBal0003844
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
esgVS8
Key Links
Genomic Maps

Nature of the Allele
Progenitor genotype
Cytology
Description

Amino acid change within the zinc finger: G387E and two other amino acid substitutions P149Q and M196I.

Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Nucleotide change:

G15335253A

Amino acid change:

G387E | esg-PA

Reported amino acid change:

G387E

Comment:

Amino acid change within the zinc finger: two other amino acid substitutions, P149Q and M196I, observed in mutant. Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.

Variant Molecular Consequences
Associated Sequence Data
DNA sequence
Protein sequence
 
Expression Data
Reporter Expression
Additional Information
Statement
Reference
 
Marker for
Reflects expression of
Reporter construct used in assay
Human Disease Associations
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 0 )
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 0 )
Disease
Interaction
References
Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
 
Disease-implicated variant(s)
 
Phenotypic Data
Phenotypic Class
Phenotype Manifest In
Detailed Description
Statement
Reference

Heterozygous esg35Ce-3 mutant flies exhibit increased sensitivity to nicotine.

In esg35Ce-3/esg05729 larvae, abdominal histoblasts become polyploid.

The dorsal branch fusion cells form discrete branches that never meet or join. These cells go on to form additional branches that resemble normal terminal branches in the larva. Lateral trunk fusion branches are completely missing leaving a gap in each segment of the lateral trunk.

Heterozygotes with esg05729 survive to the pharate adult stage, larval abdominal histoblasts undergo endoreplication and become polyploid preventing the development of the adult abdominal epidermis.

Many heteroallelic combinations studied. Where flies die as pharate adults sternite/tergites are partially or completely deleted and/or legs are twisted. Where flies are viable, they have held out wings, and may have sternite/tergites partially deleted and be sickly. Abdominal histoblasts were examined in heteroallelic combinations and found to have nuclei 3.4 fold times larger (revealed by Ecol\lacZ expression from esg05729 allele) and with 7-16 times as much DNA (DAPI fluorescence) as wild type histoblast nuclei. esg05729/esg35Ce-3 larvae abnormally replicate the DNA of histoblasts (BrdU incorporation). Furthermore, haematoxylin staining revealed that proliferation of histoblasts does not occur during metamorphosis of esg05729/esg35Ce-3 flies. Humeral discs in esg05729/esg35Ce-3 flies have nuclei similar in size to wild type, and differentiate normal dorsal T1 structures.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Other
Statement
Reference
Additional Comments
Genetic Interactions
Statement
Reference

In cdc2B47/+,esg35Ce-3/esg05729 imaginal discs are reduced in size and sometimes have cells with large nuclei.

Combination of phl mutation with esg05729/esg35Ce-3 greatly increased size of the imaginal cell nuclei.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Partially rescued by

esg05729/esg35Ce-3 is partially rescued by esghs.PF

Comments

Introduction of esghs.PF and multiple heat shocks during embryonic and larval development significantly restores the amount of adult type abdominal cuticle.

Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer

Simpson.

P. Simpson.

Comments
Comments

Phenotypic data included in FBrf0051973.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (4)
References (12)