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General Information
D. melanogaster
FlyBase ID
Also Known As
omb-Gal4, bi-GAL4, ombGAL4, P[GAL4]biomb-Gal4, omb-GAL42
Inserted Element

GAL4 reporter/driver

Affected gene(s)
Viability / fertility
Associated allele(s)
Stock availability
Genomic Location
Chromosomal Location
Sequence Location
Target / Docking site
Member of Large Scale Dataset(s)
Detailed Mapping Data
Chromosome (arm)
Sequence Location
Cytological location (computed by FlyBase)
Cytological location (reported)
Insertion into Natural transposon
Comments concerning location
Sequence Data
Flanking sequence
Inserted Element
Location-dependent role
Size (Kb)


Component Allele(s)
Molecular map
Affected Gene(s)
Alleles and Phenotypes
(Ganguly et al., 2021, Cho et al., 2020, Nagel et al., 2020, Raj et al., 2020, Svendsen et al., 2019, Wolf et al., 2019, Dardalhon-Cuménal et al., 2018, Liu et al., 2018, Suzuki et al., 2018, Brockmann et al., 2014, Lüchtenborg et al., 2014, Maier et al., 2013, Gibert et al., 2011, Kurth et al., 2011, Maier et al., 2011, Pueyo and Couso, 2011, Kugler and Nagel, 2010, Oros et al., 2010, Svendsen et al., 2009, Kugler and Nagel, 2007, Makhijani et al., 2007, Shinza-Kameda et al., 2006, Vidal et al., 2006, Zhang et al., 2006, Galindo et al., 2005, Lim et al., 2005, Singh et al., 2005, Yoshida et al., 2005, del Alamo Rodriguez et al., 2004, Martin et al., 2004, Rodriguez, 2004, Singh et al., 2004, Strutt et al., 2004, Tsai and Sun, 2004, Wu et al., 2004, Estella et al., 2003, Giagtzoglou et al., 2003, Tomlinson, 2003, Azpiazu and Morata, 2002, Galindo et al., 2002, Giráldez et al., 2002, Kopp and Duncan, 2002, Lawrence et al., 2002, Singh et al., 2002, Apidianakis et al., 2001, Lee et al., 2001, Pavlopoulos et al., 2001, Rangarajan et al., 2001, Azpiazu and Morata, 2000, Blaumueller and Mlodzik, 2000, Calleja et al., 2000, Nagel et al., 2000, Wang et al., 2000, Collins et al., 1999, Hays et al., 1999, Holmes and Heilig, 1999, Jazwinska et al., 1999, Kopp et al., 1999, Ligoxygakis et al., 1999, Rangarajan et al., 1999, Zeidler et al., 1999, Dominguez et al., 1998, Milan et al., 1998, Rorth et al., 1998, Gorfinkiel et al., 1997, Kopp and Duncan, 1997, Brook and Cohen, 1996, Lecuit et al., 1996)
Expression Data
Reporter Expression
distribution deduced from reporter (Gal4 UAS)
Tissue/Position (including subcellular localization)
wing disc | distal

Comment: reference states 30 hr APF

wing disc | restricted

Comment: reference states 30 hr APF

Additional Information

Drives expression in a broad central stripe in the wing pouch, the wing hinge primordium, and the pleura primordium, but not within the notum anlage, in the wing disc. Drives expression in the dorsal tibia in the larval and pupal leg discs.

Scer\GAL4bi-omb-Gal4 drives expression in a wide band centered on the A/P boundary in the wing pouch and wing hinge primorium areas of the wing disc.

Larval expression is observed in the wing pouch of the dorsal mesothoracic disc. Representative image can be seen in FBrf074525, Figure 4A.

Expression is observed in each abdominal segment, both dorsally and ventrally, as a single stripe spanning the AP border and including the rear of the A compartment and the front region of the P compartment.

In the pupal wing, a broad domain of expression is observed that extends posteriorly from midway between veins L1 and L2, across the compartment boundary, to midway between veins L4 and L5 in the posterior compartment.

Marker for
Reporter construct used in assay
Data on Genetic Line
Line ID
Origin as a multiple insertion line
Progenitor(s) within the Genome
Related Aberration or Balancer
Stocks (1)
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (21)
Reported As
Symbol Synonym
optomotor blind (omb)-GAL4
Name Synonyms
Secondary FlyBase IDs
    References (69)