FlyBase Insertion Report: Dmel\P{lArB}how[1A122]

FB2026_03 , released September 17, 2026

FB2026_03 , released September 17, 2026

Insertion: Dmel\P{lArB}how^1A122

General Information

Symbol

Dmel\P{lArB}how^1A122

Species

D. melanogaster

Name

FlyBase ID

FBti0004356

Feature type

transposable_element_insertion_site

Description

Inserted Element

LINE ID

Affected gene(s)

Viability / fertility

Associated allele(s)

Ecol\lacZ^how-1A122, how^1A122

Stock availability

None publicly available

Genomic Location

Chromosomal Location

3R ( 94A1 )

Sequence Location

3R:22,042,709..22,042,709 [+]

Target / Docking site

Genomic Maps

Member of Large Scale Dataset(s)

Dataset

Description

Detailed Mapping Data

Chromosome (arm)

Sequence Location

3R:22,042,709..22,042,709 [+]

(Lo and Frasch, 1997)

Orientation

Cytological location (computed by FlyBase)

94A1 (inferred by FlyBase from sequence location)

Cytological location (reported)

93F (in situ hybridization reported)

(Perrimon et al., 1991)

Insertion into Natural transposon

Comments concerning location

Sequence Data

Flanking sequence

Inserted Element

Construct

Size (Kb)

18.327

Component Allele(s)

Ecol\lacZ^P\T.A92a

Molecular map

Affected Gene(s)

Insertion may affect gene

(Baehrecke, 1997, Lo and Frasch, 1997, Zaffran et al., 1997, Zaffran et al., 1995, Perrimon et al., 1991)

(Zaffran et al., 1997)

Variant Molecular Consequences

Phenotypic Data

Associated Allele

Phenotypic Data

Ecol\lacZ^how-1A122

Phenotypic Class Phenotype Manifest in Detailed Description

Phenotypic Class Phenotype Manifest in Detailed Description

Expression Data

Reporter Expression

distribution deduced from reporter

Stage

Tissue/Position (including subcellular localization)

Reference

embryonic stage

(Perrimon et al., 1991)

embryonic stage 4 -- 17

(Perrimon et al., 1991)

embryonic stage 6

mesoderm anlage

(Zaffran et al., 1997)

embryonic stage 12

(Zaffran et al., 1997)

embryonic stage 14 -- 17

muscle attachment site

(Zaffran et al., 1997)

embryonic stage 15 -- 17

pharyngeal muscle cell

(Zaffran et al., 1997)

larval somatic muscle cell

(Zaffran et al., 1997)

larval visceral muscle cell

(Zaffran et al., 1997)

embryonic/larval dorsal vessel

(Zaffran et al., 1997)

embryonic/larval aorta

(Zaffran et al., 1997)

embryonic stage 17

embryonic/larval dorsal vessel

(Perrimon et al., 1991)

larval muscle system

(Perrimon et al., 1991)

muscle attachment site

(Zaffran et al., 1997)

Additional Information

Statement

Reference

Enhancer trap expression is observed in the presumptive mesoderm at the onset of gastrulation and in the mesoderm at germ band retraction. Later, expression becomes restricted to myogenic cells. Expression is observed in precursors of the somatic muscles, pharyngeal muscles, visceral muscles and cardiac cells. Expression is also seen in muscle attachment sites.

(Zaffran et al., 1997)

Marker for

Reflects expression of

(Zaffran et al., 1997)

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

Aberration

Balancer

Stocks (0)

External Crossreferences and Linkouts ( 0 )

Comments

Comments

Insertion of a P{lArB} element in the first intron, 354bp downstream of the first exon. The P insertion is in a negative orientation with repect to how gene transcription.

(Lo and Frasch, 1997)

Synonyms and Secondary IDs (2)

Reported As

Symbol Synonym

P{lArB}1A122

(FlyBase, 1992-)

P{lArB}how^1A122

(Lo and Frasch, 1997, Zaffran et al., 1997, FlyBase, 1992-)

Name Synonyms

Secondary FlyBase IDs

FBti0002886

References (6)

Report Sections