FB2026_02 , released June 18, 2026
Insertion: Dmel\P{Switch2}GSG1687
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General Information
Symbol
Dmel\P{Switch2}GSG1687
Species
D. melanogaster
Name
FlyBase ID
FBti0114978
Feature type
transposable_element_insertion_site
Description
Inserted Element
P{Switch2}
LINE ID
Affected gene(s)
egr, Scer\GAL4
Viability / fertility
viable
Associated allele(s)
Scer\GAL4GSG1687
Stock availability
1 publicly available
Genomic Location
Chromosomal Location
2R ( 46E1 )
Sequence Location
2R:10,078,311..10,078,410
Target / Docking site
Genomic Maps
Member of Large Scale Dataset(s)
Dataset
Description
Detailed Mapping Data
Chromosome (arm)
Sequence Location
2R:10,078,311..10,078,410
(Cole et al., 2012.7.6)
Orientation
Cytological location (computed by FlyBase)
46E1 (inferred by FlyBase from sequence location)
Cytological location (reported)
46E1 (reported as inferred from sequence location)
(Nicholson et al., 2008, Nicholson et al., 2008)
46E1_r5 (reported as inferred from sequence location)
(Cole et al., 2012.7.6)
Insertion into Natural transposon
Comments concerning location

Alternative genomic location: 2R:5965242..5965768 (Genome release number: 5)

(Cole et al., 2012.7.6)
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)
Phenotypic Data
Expression Data
Reporter Expression
distribution deduced from reporter (Gal4 UAS)
Stage
Tissue/Position (including subcellular localization)
Reference
third instar larval stage
embryonic/larval PNS perineurial glial cell | intense
(Nicholson et al., 2008)
cell body glial cell | faint | subset
(Nicholson et al., 2008)
CNS surface glial cell | faint | subset
(Nicholson et al., 2008)
ring gland
(Nicholson et al., 2008)
Additional Information
Statement
Reference

ScerGAL4GSG1687 drives primarily mifepristone-inducible glial expression. Strong expression is observed PNS glia, particularly peripheral perineurial cells of peripheral nerves. Weak expression is observed in a few surface and cortex glia in the central nervous system. Expression is also observed in the ring gland.

(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 )
Comments
Comments

Insertion maps 54bp 5' of egr.

(Nicholson et al., 2008)
Synonyms and Secondary IDs (3)
Reported As
Symbol Synonym
1687
(Cole et al., 2012.7.6, Nicholson et al., 2008, Nicholson et al., 2008)
GSG1687
(Nicholson et al., 2008)
P{Switch2}GSG1687
(FlyBase, 1992-)
Name Synonyms
Secondary FlyBase IDs
    References (4)