FB2026_02 , released June 18, 2026
Recombinant Construct: P{(FRT.UbxPRE)(loxP.CTCFx4)yw}
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General Information
Symbol
P{(FRT.UbxPRE)(loxP.CTCFx4)yw}
FlyBase ID
FBtp0171057
Feature type
transgenic_transposable_element
Component Allele(s)
Size
Expression Data
Associated insertion(s)
0 available
Molecular map
Description and Uses
Description

Transgenic construct used to study the ability of the CTCF protein to independently form a functional insulator. Contains a y reporter (including the upstream body and wing enhancers and the intronic bristle enhancer) upstream of a mini-w reporter. An FRT cassette containing the Ubx Polycomb response element (PRE) has been inserted in between the y body and wing enhancers. A loxP cassette containing four binding sites for CTCF has been inserted between the upstream y enhancers and the y promoter.

(Postika et al., 2019)
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
(PRE)(CTCFx4)yw
(Postika et al., 2019)
P{(FRT.UbxPRE)(loxP.CTCFx4)yw}
(FlyBase, 1996-)
Secondary FlyBase IDs
    References (2)