FB2026_02 , released June 18, 2026
Recombinant Construct: P{Kr-lacZ.BS23}
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General Information
Symbol
P{Kr-lacZ.BS23}
FlyBase ID
FBtp0004382
Feature type
transgenic_transposable_element
Component Allele(s)
Ecol\lacZKr.BoE
Size
Expression Data
lacZ reporter
Associated insertion(s)
1 available
Molecular map
Description and Uses
Construct components
Component allele Ecol\lacZKr.BoE
Transgenic product class
Component
Use(s)
Encoded product / tool
lacZ
Description

2.3kb cis-acting Bolwig organ element from Kr in front of a heat shock promoter fused to the lacZ coding region.

(Schmucker et al., 1992)
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
No Assay Recorded
Stage
Tissue/Position (including subcellular localization)
Reference
embryonic stage
Bolwig nerve
(Schmucker et al., 1992)
distribution deduced from reporter
Stage
Tissue/Position (including subcellular localization)
Reference
embryonic stage
Bolwig organ
(Schmucker et al., 1992)
Additional Information
Statement
Reference

Reporter gene expression is observedin the developing Bolwig's organs of embryos. Expression first occurs in asingle pair of neurons.

(Schmucker et al., 1992)
 
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 (4)
Reported As
Symbol Synonym
BS23
(Helfrich-Forster et al., 2002)
Kr-BO
(Soustelle et al., 2002)
Kr-BO-lacZ
(Helfrich-Forster et al., 2002)
P{Kr-lacZ.BS23}
(FlyBase, 1996-)
Secondary FlyBase IDs
    References (6)