FB2026_03 , released September 17, 2026
Recombinant Construct: P{TT1}
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General Information
Symbol
P{TT1}
FlyBase ID
FBtp0018557
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 impact of local chromatin modification on DNA amplification at the origin of replication of the third chromosome chorion gene cluster. Contains: a w+mC marker - five copies of the UAS binding site - a 3.8kb genomic fragment that corresponds to the minimal functional origin sequence of the chorion gene cluster (this fragment includes the ACE3 amplification control element, the Cp18 transcription unit, the Ori-β origin of replication and the Cp15 transcription unit). A chromatin-modifying protein of interest can be tethered to the UAS sites in the P{TT1} transgene by fusing the protein to GAL4(DBD), allowing the impact of chromatin modification on the activity of the origin sequence to be studied.

(Aggarwal and Calvi, 2004)
Construct components
Component
Use(s)
Element type
Marker(s)
w+mC
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 (3)
Reported As
Symbol Synonym
P{TT1}
(FlyBase, 1996-)
TT1
(Kim et al., 2011)
Tether Target 1
(Aggarwal and Calvi, 2004)
Secondary FlyBase IDs
    References (3)