FB2026_03 , released September 17, 2026
Recombinant Construct: P{En.SλS}
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General Information
Symbol
P{En.SλS}
FlyBase ID
FBtp0017529
Feature type
transgenic_transposable_element
Component Allele(s)
Size
Expression Data
Associated insertion(s)
0 available
Molecular map
Description and Uses
Description

Transgenic construct in which y is used as a reporter in an enhancer blocking assay; used in a study to determine whether combinations of insulators can interact. Contains the y+t7.7 minigene, which includes wing and body enhancers upstream of the transcription start site and a bristle enhancer in the intron. Two copies of a 990bp scs insulator fragment (nucleotides 510-1503 of GenBank:X63731), separated by 0.5kb of λ spacer DNA, has been inserted downstream of the body enhancer, at -893bp relative to the transcription y start site.

(Kuhn et al., 2003)
Construct components
Sequence Data
Sequence (FB)
Associated Sequence Data
DDBJ / EMBL / GenBank
DNA Sequence
Extent
Segments and Size
Total Size
Left end
Right end
 
Segments
Num
Orientation
Symbol
Reference
Phenotypic Data
Component Allele
Phenotypic Data
Expression Data
Reporter Expression
Additional Information
Statement
Reference
 
Marker for
Reflects expression of
Reporter construct used in assay
Progenitors and Descendants
progenitor(s)
descendant(s)
Comments
Stocks (0)
Stocks containing insertion(s) of this recombinant construct
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (2)
Reported As
Symbol Synonym
En S λ S
(Kuhn et al., 2003)
P{En.SλS}
(FlyBase, 1996-)
Secondary FlyBase IDs
    References (2)