FB2026_03 , released September 17, 2026
Insertion: Dmel\P{Switch2}GSG3644
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General Information
Symbol
Dmel\P{Switch2}GSG3644
Species
D. melanogaster
Name
FlyBase ID
FBti0147899
Feature type
transposable_element_insertion_site
Description
Inserted Element
P{Switch2}
LINE ID
Affected gene(s)
Scer\GAL4
Viability / fertility
Associated allele(s)
Scer\GAL4GSG3644
Stock availability
1 publicly available
Genomic Location
Chromosomal Location
3
Sequence Location
Target / Docking site
Member of Large Scale Dataset(s)
Dataset
Description
Detailed Mapping Data
Chromosome (arm)

3

(Nicholson et al., 2008)
Sequence Location
Orientation
Cytological location (computed by FlyBase)
Cytological location (reported)
Insertion into Natural transposon
Comments concerning location
Sequence Data
Flanking sequence
Inserted Element
Construct
P{Switch2}
(Nicholson et al., 2008)
Size (Kb)

7.931

(Roman, 2002.6.25)
Component Allele(s)
Molecular map
Affected Gene(s)
Insertion may affect gene
Scer\GAL4
(Nicholson et al., 2008)
Variant Molecular Consequences
Phenotypic Data
Expression Data
Reporter Expression
distribution deduced from reporter (Gal4 UAS)
Stage
Tissue/Position (including subcellular localization)
Reference
third instar larval stage
larval neuron | intense | subset
(Nicholson et al., 2008)
larval midline neuron | intense of larval ventral nerve cord | dorsal
(Nicholson et al., 2008)
larval ventral nerve cord | lateral | restricted
(Nicholson et al., 2008)
larval somatic muscle cell | faint
(Nicholson et al., 2008)
motor neuron
(Nicholson et al., 2008)
chordotonal organ | intense
(Nicholson et al., 2008)
multidendritic neuron | faint
(Nicholson et al., 2008)
Additional Information
Statement
Reference

ScerGAL4GSG3644 drives mifepristone-inducible expression primarily neuronally, with some muscle expression. Widespread intense expression is observed at the dorsal midline and in lateral cells clusters in the ventral nerve cord. Little to no expression is observed in the brain Strong expression is observed in chordotonal organs, and weak expression in multidendritic neurons. Strong expression is observed at neuromuscular junctions of most muscle fibers, though expression in the muscles themselves is weak.

(Nicholson et al., 2008)
 
Marker for
Reflects expression of
Reporter construct used in assay
Avic\GFP2x.EGFP.UAS
(Nicholson et al., 2008)
Data on Genetic Line
Line ID
Origin as a multiple insertion line
Progenitor(s) within the Genome
Related Aberration or Balancer
Aberration
Balancer
Stocks (1)
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
Reported As
Symbol Synonym
3644
(Nicholson et al., 2008)
P{Switch2}GSG3644
Name Synonyms
Secondary FlyBase IDs
    References (1)