FB2026_03 , released September 17, 2026
Recombinant Construct: P{GMR56F03-GAL4}
Open Close
General Information
Symbol
P{GMR56F03-GAL4}
FlyBase ID
FBtp0061438
Feature type
transgenic_transposable_element
Component Allele(s)
Scer\GAL4GMR56F03
Also Known As
R56F03-Gal4, GMR56F03-GAL4, 56F03-GAL4, EGN-GAL4, Ensheathing glia-Gal4, GMR56F03
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\GAL4GMR56F03
Transgenic product class
Component
Use(s)
Regulatory region(s)
GMR56F03
Encoded product / tool
GAL4
Description

A 2644 base pair fragment from the flanking non-coding or intronic region of CG9657 is fused upstream of a Drosophila core synthetic promoter (DSCP) that is followed by sequence encoding a GAL4 driver.

(Pfeiffer et al., 2011.2.9)
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 (Gal4 UAS)
Stage
Tissue/Position (including subcellular localization)
Reference
embryonic stage -- larval stage
embryonic/larval ensheathing glial cell
(Kremer et al., 2017)
pupal stage -- adult stage
adult ensheathing glial cell
(Bajar et al., 2022)
pharate adult stage P15
adult ensheathing glial cell

Comment: 96 hr APF

(Wu et al., 2017)
adult stage
adult ensheathing glial cell
(Hill et al., 2019)
adult synaptic neuropil ensheathing glial cell
(Kremer et al., 2017)
Additional Information
Statement
Reference

ScerGAL4GMR56F03 drives expression in ensheathing glia at from mid-pupal through adult stages.

(Bajar et al., 2022)

ScerGAL4GMR56F03 drives expression in neuropil ensheathing glia; expression not associated with axon tracts. ScerGAL4GMR56F03 also drives expression in ensheathing glia in the embryonic and larval CNS.

(Kremer et al., 2017)

Drives expression in ensheathing glial cells at all stages.

(FlyBase Curators, 2017)
 
Marker for
ensheathing glial cell
(Bajar et al., 2022)
Reflects expression of
rumpel
(Sheng et al., 2020)
Reporter construct used in assay
Progenitors and Descendants
progenitor(s)
pBPGUw
(Pfeiffer et al., 2011.2.9)
descendant(s)
Comments
Stocks (2)
Stocks containing insertion(s) of this recombinant construct
Bloomington
39157
w1118; P{GMR56F03-GAL4}attP2
77469
w*; P{GMR56F03-GAL4}attP24/CyO
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (17)
Reported As
Symbol Synonym
56F03
(Sheng et al., 2023)
56F03-GAL4
(Flores-Valle et al., 2025, Tenedini et al., 2025, Rabah et al., 2023, de Tredern et al., 2021, Kato et al., 2020)
56F03-Gal4
(Chen et al., 2023, Davis et al., 2022, Kremer et al., 2017)
CG9657-GAL4
(Zhang et al., 2024)
EG GMR56F03-Gal4
(Miller and Broadie, 2025)
EGN-GAL4
(Wei et al., 2026, Wei et al., 2025, Miao et al., 2024)
EGN-Gal4
(Grzeschik et al., 2025)
Ensheathing glia-Gal4
(Rojo-Cortés et al., 2026, Alassaf et al., 2025, Alassaf and Rajan, 2023)
GMR56F03
(Gu et al., 2022, Kozlov et al., 2020)
GMR56F03-GAL4
(Grzeschik et al., 2025, Zhu et al., 2025, Sheng et al., 2023, Calderon et al., 2022, Vaughen et al., 2022, Weiss et al., 2022, Wu et al., 2017)
GMR56F03-Gal4
(Beachum et al., 2025, Leier et al., 2025, Jindal et al., 2023, Salazar et al., 2022, Sheng et al., 2020)
P{GMR56F03-GAL4}
(FlyBase, 1996-)
R56F03
(Li et al., 2023, FlyBase, 1996-)
R56F03-GAL4
(Hewson et al., 2024, Bajar et al., 2022, Lin et al., 2021, Hill et al., 2019, Ren et al., 2018, Stahl et al., 2018)
R56F03-Gal4
(Casas-Tinto et al., 2025, Baumann et al., 2024, Li et al., 2024, Nelson et al., 2024, Krupp et al., 2023, Scott et al., 2023, Ammer et al., 2022, Chen et al., 2022, Vita et al., 2021, Davla et al., 2020, Hakim-Mishnaevski et al., 2019, Enriquez et al., 2018, Hilu-Dadia et al., 2018, Otto et al., 2018, Kremer et al., 2017, Richier et al., 2017, Peco et al., 2016)
ensheathingG4
(Hakim-Mishnaevski et al., 2019)
rumpel-Gal4
(Schmid et al., 2024)
Secondary FlyBase IDs
    References (59)