FB2026_02 , released June 18, 2026
Recombinant Construct: P{FMRFa-lacZ.Tv}
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General Information
Symbol
P{FMRFa-lacZ.Tv}
FlyBase ID
FBtp0010306
Feature type
transgenic_transposable_element
Component Allele(s)
Ecol\lacZFMRFa.Tv
Also Known As
Tv-lacZ
Size
Expression Data
lacZ reporter
Associated insertion(s)
1 available
Molecular map
Description and Uses
Construct components
Component allele Ecol\lacZFMRFa.Tv
Transgenic product class
Component
Use(s)
Regulatory region(s)
FMRFa_WF17
Encoded product / tool
lacZ
Description

A 446bp Tv neuron-specific FMRFa enhancer sequence (-922bp to -476bp relative to the transcription start site) is fused upstream of a heat shock promoter driving lacZ reporter expression.

(Benveniste et al., 1998)
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
Expression Data
Reporter Expression
distribution deduced from reporter
Stage
Tissue/Position (including subcellular localization)
Reference
embryonic stage 17
apterous-expressing neuron of the lateral cluster of the thorax Ap4 | subset
(Benveniste et al., 1998)
larval stage
apterous-expressing neuron of the lateral cluster of the thorax Ap4 | subset
(Benveniste et al., 1998)
Additional Information
Statement
Reference

EcollacZFmrf.Tv expresses in approximately 97% of embryonic Tv neurons, and 93% of first instar larval Tv neurons.

(Benveniste et al., 1998)
 
Marker for
Reflects expression of
FMRFa
(Benveniste et al., 1998)
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 (4)
Reported As
Symbol Synonym
P{FMRFa-lacZ.Tv}
(FlyBase, 1996-)
P{Fmrf-lacZ.Tv}
(FlyBase, 1996-)
Tv-lacZ
(van Meyel et al., 2000, Benveniste et al., 1998)
pWF17
(Benveniste and Taghert, 1999)
Secondary FlyBase IDs
    References (6)