FB2025_01 , released February 20, 2025
Allele: Dmel\kccDHS1
Open Close
General Information
Symbol
Dmel\kccDHS1
Species
D. melanogaster
Name
FlyBase ID
FBal0144994
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Nature of the Allele
Progenitor genotype
Associated Insertion(s)
Cytology
Description

An insertion of 13bp (ACTATGCTACTGT) after the 7th base pair of the intron 11.

Allele components
Component
Use(s)
Inserted element
Encoded product / tool
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Inserted_sequence:

ACTATGCTACTGT

Comment:

An insertion of 13 bp (ACTATGCTACTGT) occurs between the 7th and 8th base of intron 11.

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 ( 1 )
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 1 )
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

kccDHS1 mutant flies show seizure sensitivity as evidenced by a lowered threshold to evoked electrophysiologically recorded seizure-like activity and bang sensitive behavioral seizure-like activity and paralysis.

Homozygous kccDHS1 mutants display a bang-sensitive paralytic phenotype.

One day after eclosion, 38 % of kccDHS1 homozygous flies are bang sensitive (i.e.- they exhibit temporary paralysis in response to 10 seconds of vortexing). The penetrance of bang sensitivity in these flies decreases rapidly with age. The same phenotype is seen in kccDHS1/kccEY08304 animals, and at a lower penetrance (12-13%) in kccDHS1/kccML1 or kccDHS1/kccP20-180 animals.

The seizure threshold of kccDHS1 homozygotes (the voltage of high frequency stimulation to the brain required to induce seizures) is significantly lower than wild-type.

60% of homozygotes have a bang sensitive phenotype.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Enhanced by
Statement
Reference

kccDHS1 has bang sensitive | recessive phenotype, enhanceable by eas[+]/eas2

kccDHS1 has bang sensitive | recessive phenotype, enhanceable by jusiso7.8/sda[+]

kccDHS1 has bang sensitive | recessive phenotype, enhanceable by bss[+]/parabss1

Suppressed by
Statement
Reference
NOT suppressed by
Statement
Reference
Enhancer of
Statement
Reference

kccDHS1/E(sda)J[+] is an enhancer of bang sensitive phenotype of jusiso7.8

Suppressor of
Statement
Reference
Other
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference

tauEP3203/tauEP3203 or tauEP3203/+ significantly partially suppresses bang-sensitive behavior in kccDHS1/kccDHS1 flies.

The bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants is significantly suppressed by Rdl1/+ or RdlMD-RR/+.

The bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants is suppressed to great extent by Scer\GAL4c747-driven RdldsRNA.8-10.Scer\UAS expression.

The bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants is only modestly suppressed by Ncc69PL00618/+ or Df(3L)eygC1/+.

The bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants is markedly suppressed by the expression of Ncc69GD14863 via Scer\GAL4c747.

The penetrance of the bang sensitive phenotype due to kccDHS1/kccDHS1 is enhanced by jbugunspecified.

Unlike either heterozygote alone, a bang sensitive phenotype is seen in kccDHS1/+; sdaiso7.8/+ adults (penetrance 51%). The penetrance of this phenotype rises to 82% in kccDHS1/kccDHS1; sdaiso7.8/+ adults. I nearly identical pattern of enhancement is seen with bss1 : 48% of kccDHS1/+; bss1/+ adults are bang sensitive, rising to 77% in kccDHS1/kccDHS1/; bss1/+ adults. No bang sensitivity is seen in kccDHS1/+; eas2/+ transheterozygotes, but 65% of kccDHS1/kccDHS1 ; eas2/+ adults are bang sensitive.

The penetrance of the bang sensitive phenotype seen in kccDHS1 homozygous adults is reduced to 1% by Rdl1/+ and to 3% by Gad1L352F/+.

Xenogenetic Interactions
Statement
Reference

Expression of two copies of Hsap\SLC12A5UAS.cHa driven by two copies of Scer\GAL4c739 results in an almost complete rescue of the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants. Electrophysiology shows that Hsap\SLC12A5UAS.cHa expression raises the seizure threshold of kccDHS1 mutant flies.

Blocking synaptic transmission from mushroom body neurons by Scer\GAL4Mef2.247-directed expression of Ctet\tetXTNT-LC.UAS dramatically reduces the bang sensitivity of kccDHS1 mutant flies.

Blocking synaptic transmission by Ctet\tetXTNT-LC.UAS expression in antennal neurons projecting to the mushroom body (targeted by Scer\GAL4GH146) produces no significant difference in the bang sensitivity of kccDHS1 mutant flies.

Complementation and Rescue Data
Partially rescued by
Comments

Expression of kccScer\UAS.cHb driven by Scer\GAL4repo.PU produces no apparent change in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4elav.PLu results in a substantial reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL41407 results in a substantial reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHd driven by Scer\GAL4repo.PU produces a slight reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHd driven by Scer\GAL4elav.PLu results in a modest reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHd driven by Scer\GAL41407 results in a modest reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4ey-OK107 results in a marked reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4Aph-4-c232 results in a marked reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4104Y results only in a modest reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4GH146 results in a substantial reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Co-expression of Scer\GAL80Mef2.PT with Scer\GAL4elav.PLu-driven kccScer\UAS.cHb results in a significantly compromise in the rescuing ability of kccScer\UAS.cHb. Scer\GAL80Mef2.PT co-expression significantly compromises the ability of Scer\GAL4elav.PLu-driven kccScer\UAS.cHb to rescue the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4Mef2.247 results in a marked reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4c747 results in a marked reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4c739 results in a marked reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4c305a results in a marked reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4Tab2-201Y results in a marked reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4Rdl.PS results in a substantial reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4Gad1.3.098 results in a significant reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

Expression of kccScer\UAS.cHb driven by Scer\GAL4Cha.7.4 results only in a modest reduction in the bang-sensitive paralytic phenotype of homozygous kccDHS1 mutants.

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

Selected as: a mutation that dominantly enhances the sdaiso7.8/+ bang sensitive phenotype.

Comments
Comments

Splicing is unaffected by this mutation, but transcript levels are significantly reduced. Protein levels are low immediately after birth, but recover significantly with age.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (3)
Reported As
Name Synonyms
Secondary FlyBase IDs
    References (6)