FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Recombinant Construct: P{GAL4-twi.BS}
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General Information
Symbol
P{GAL4-twi.BS}
FlyBase ID
FBtp0001305
Feature type
transgenic_transposable_element
Component Allele(s)
Scer\GAL4twi.PBa
Also Known As
twist-GAL4
Size
Expression Data
GAL4 reporter/driver
Associated insertion(s)
3 available
Molecular map
Description and Uses
Construct components
Component
Use(s)
Marker(s)
w+mC
Component allele Scer\GAL4twi.PBa
Transgenic product class
Component
Use(s)
Regulatory region(s)
twi
Encoded product / tool
GAL4
Description

GAL4 driver expression is controlled by twi promoter sequences.

(Baker and Schubiger, 1996)
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 9 -- 13
mesectoderm

Comment: reference states 4-10 hr AEL

(Baker and Schubiger, 1996)
mesoderm

Comment: reference states 4-10 hr AEL

(Baker and Schubiger, 1996)
embryonic stage 9 -- 14
endoderm

Comment: reference states 4-10 hr AEL

(Baker and Schubiger, 1996)
distribution deduced from reporter (Gal4 UAS)
Stage
Tissue/Position (including subcellular localization)
Reference
embryonic stage
mesoderm
(Golembo et al., 1996)
ventral midline of embryo
(Golembo et al., 1996)
Additional Information
Statement
Reference

Expression in endoderm and mesectoderm may be due to transient activity of twist promoter in these tissues earlier, at blastoderm, and persists due perdurance of GAL4 and/or lacZ in Drosophila embryos.

(Baker and Schubiger, 1996)
 
Marker for
Reflects expression of
Reporter construct used in assay
Progenitors and Descendants
progenitor(s)
pP{GAL4-twi.BS}
(Baker and Schubiger, 1996)
descendant(s)
Comments
Stocks (0)
Stocks containing insertion(s) of this recombinant construct
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (5)
Reported As
Symbol Synonym
P[w+,twi-GAL4]
(Baker and Schubiger, 1996)
P{GAL4-twi.BS}
(FlyBase, 1996-)
twi-GAL4
(Carnesecchi et al., 2020)
twist-GAL4
(Madden et al., 1999)
twist-Gal4
(Carnesecchi et al., 2020)
Secondary FlyBase IDs
    References (7)