The gene bric a brac 1 is referred to in FlyBase by the symbol Dmel\bab1 (CG9097, FBgn0004870). It is a protein_coding_gene from Drosophila melanogaster. There is experimental evidence that it has the molecular function: protein binding; AT DNA binding. There is experimental evidence that it is involved in the biological process: female gonad development; eye-antennal disc morphogenesis; transcription, DNA-dependent; sex differentiation; imaginal disc-derived leg morphogenesis. 33 alleles are reported. The phenotypes of these alleles are annotated with: adult segment; organ system subdivision; appendage segment; organ system; thoracic segment; vitellarium; sense organ; prothoracic leg; cell cluster organ; metatarsus. It has 5 annotated transcripts and 5 annotated polypeptides. Protein features are: BTB/POZ; BTB/POZ fold; BTB/POZ-like; DNA binding HTH domain, Psq-type; Homeodomain-like. Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of low expression to a trough of very low expression. Peak expression observed at stages throughout the pupal period. Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: adult brain. Comments on Affy2 ProbeSet: ProbeSet 1623466_at completely aligns to an exonic region of only a subset of 1 of the 2 FlyBase-annotated transcript isoforms of bab1. Gene sequence location is 3L:1036369..1101089.
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FB2013_03
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Transcript expression in the ovary is restricted to the cells that form the terminal filaments. Transcript is expressed in the primordium of tarsal segments TS1-TS4 in leg imaginal discs.
Two cis regulatory elements govern bab1 expression in the pupal abdomen: one element that regulates bab1 expression in segments A2–A4 of both sexes and a second, dimorphic element that regulates expression in the posterior segments A5–A7 of females.
Starting in larval mid-third instar, Ecol\lacZ expression is detected in a concentric domain in leg and antennal imaginal discs. These expression domains correspond to the primordia of the tarsus, and subdistal structures of the antenna, respectively. By late third larval instar, expression is stronger, and the primordia of tarsal segments 2 to 4, and of the distal portion of tarsal segment 1, are stained. The expression displays a graded and wave-like pattern: tarsal folds 3 and 4 stain more than folds 1 and 2, and the ridges of the folds stain more than the furrows. This staining pattern is still visible in 6 hour-old prepupae. In adults, staining is seen in two segments of the antennal basal cylinder.
Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: adult brain.
[download data (TSV)]
Guide to FlyAtlas expression level colors
No expression (0 - 9.999)
Low expression (10 - 99.999)
Moderate expression (100 - 499.999)
High level expression (500 - 999.999)
Very high expression (>999.999)
Linear, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
43.8
Larval Midgut
2.9
Larval Hindgut
3.7
Larval Malpighian Tubules
2.7
Larval Fat Body
9.6
Larval Salivary Gland
4.1
Larval Trachea
2.275
Larval Carcass
3.125
Adult Head
14.7
Adult Eye
11.575
Adult Brain
110.1
Adult Thoracic-Abdominal Ganglion
89.3
Adult Crop
40.1
Adult Midgut
8.2
Adult Hindgut
26.3
Adult Malpighian Tubules
6
Adult Fat Body
5.9
Adult Salivary Gland
5.5
Adult Heart
12.675
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
10.1
Adult Ovary
4.5
Adult Testis
5.4
Adult Male Accessory Gland
5.8
Adult Carcass
3.6
Expression Level Scale
None
Low
Moderate
Linear, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
43.8
Larval Midgut
2.9
Larval Hindgut
3.7
Larval Malpighian Tubules
2.7
Larval Fat Body
9.6
Larval Salivary Gland
4.1
Larval Trachea
2.275
Larval Carcass
3.125
Adult Head
14.7
Adult Eye
11.575
Adult Brain
110.1
Adult Thoracic-Abdominal Ganglion
89.3
Adult Crop
40.1
Adult Midgut
8.2
Adult Hindgut
26.3
Adult Malpighian Tubules
6
Adult Fat Body
5.9
Adult Salivary Gland
5.5
Adult Heart
12.675
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
10.1
Adult Ovary
4.5
Adult Testis
5.4
Adult Male Accessory Gland
5.8
Adult Carcass
3.6
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
43.8
Larval Midgut
2.9
Larval Hindgut
3.7
Larval Malpighian Tubules
2.7
Larval Fat Body
9.6
Larval Salivary Gland
4.1
Larval Trachea
2.275
Larval Carcass
3.125
Adult Head
14.7
Adult Eye
11.575
Adult Brain
110.1
Adult Thoracic-Abdominal Ganglion
89.3
Adult Crop
40.1
Adult Midgut
8.2
Adult Hindgut
26.3
Adult Malpighian Tubules
6
Adult Fat Body
5.9
Adult Salivary Gland
5.5
Adult Heart
12.675
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
10.1
Adult Ovary
4.5
Adult Testis
5.4
Adult Male Accessory Gland
5.8
Adult Carcass
3.6
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
43.8
Larval Midgut
2.9
Larval Hindgut
3.7
Larval Malpighian Tubules
2.7
Larval Fat Body
9.6
Larval Salivary Gland
4.1
Larval Trachea
2.275
Larval Carcass
3.125
Adult Head
14.7
Adult Eye
11.575
Adult Brain
110.1
Adult Thoracic-Abdominal Ganglion
89.3
Adult Crop
40.1
Adult Midgut
8.2
Adult Hindgut
26.3
Adult Malpighian Tubules
6
Adult Fat Body
5.9
Adult Salivary Gland
5.5
Adult Heart
12.675
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
10.1
Adult Ovary
4.5
Adult Testis
5.4
Adult Male Accessory Gland
5.8
Adult Carcass
3.6
Expression Level Scale
Very high
log, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
43.8
Larval Midgut
2.9
Larval Hindgut
3.7
Larval Malpighian Tubules
2.7
Larval Fat Body
9.6
Larval Salivary Gland
4.1
Larval Trachea
2.275
Larval Carcass
3.125
Adult Head
14.7
Adult Eye
11.575
Adult Brain
110.1
Adult Thoracic-Abdominal Ganglion
89.3
Adult Crop
40.1
Adult Midgut
8.2
Adult Hindgut
26.3
Adult Malpighian Tubules
6
Adult Fat Body
5.9
Adult Salivary Gland
5.5
Adult Heart
12.675
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
10.1
Adult Ovary
4.5
Adult Testis
5.4
Adult Male Accessory Gland
5.8
Adult Carcass
3.6
Expression Level Scale
None
Low
Moderate
log, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
43.8
Larval Midgut
2.9
Larval Hindgut
3.7
Larval Malpighian Tubules
2.7
Larval Fat Body
9.6
Larval Salivary Gland
4.1
Larval Trachea
2.275
Larval Carcass
3.125
Adult Head
14.7
Adult Eye
11.575
Adult Brain
110.1
Adult Thoracic-Abdominal Ganglion
89.3
Adult Crop
40.1
Adult Midgut
8.2
Adult Hindgut
26.3
Adult Malpighian Tubules
6
Adult Fat Body
5.9
Adult Salivary Gland
5.5
Adult Heart
12.675
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
10.1
Adult Ovary
4.5
Adult Testis
5.4
Adult Male Accessory Gland
5.8
Adult Carcass
3.6
Expression Level Scale
None
Low
Moderate
High
log, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
43.8
Larval Midgut
2.9
Larval Hindgut
3.7
Larval Malpighian Tubules
2.7
Larval Fat Body
9.6
Larval Salivary Gland
4.1
Larval Trachea
2.275
Larval Carcass
3.125
Adult Head
14.7
Adult Eye
11.575
Adult Brain
110.1
Adult Thoracic-Abdominal Ganglion
89.3
Adult Crop
40.1
Adult Midgut
8.2
Adult Hindgut
26.3
Adult Malpighian Tubules
6
Adult Fat Body
5.9
Adult Salivary Gland
5.5
Adult Heart
12.675
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
10.1
Adult Ovary
4.5
Adult Testis
5.4
Adult Male Accessory Gland
5.8
Adult Carcass
3.6
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
43.8
Larval Midgut
2.9
Larval Hindgut
3.7
Larval Malpighian Tubules
2.7
Larval Fat Body
9.6
Larval Salivary Gland
4.1
Larval Trachea
2.275
Larval Carcass
3.125
Adult Head
14.7
Adult Eye
11.575
Adult Brain
110.1
Adult Thoracic-Abdominal Ganglion
89.3
Adult Crop
40.1
Adult Midgut
8.2
Adult Hindgut
26.3
Adult Malpighian Tubules
6
Adult Fat Body
5.9
Adult Salivary Gland
5.5
Adult Heart
12.675
Adult VirginFemale Spermatheca
5.3
Adult InseminatedFemale Spermatheca
10.1
Adult Ovary
4.5
Adult Testis
5.4
Adult Male Accessory Gland
5.8
Adult Carcass
3.6
Expression Level Scale
None
Low
Moderate
High
Very high
Heatmap
Tissue
Expression Level
Larval Central Nervous System
Larval Midgut
Larval Hindgut
Larval Malpighian Tubules
Larval Fat Body
Larval Salivary Gland
Larval Trachea
Larval Carcass
Adult Head
Adult Eye
Adult Brain
Adult Thoracic-Abdominal Ganglion
Adult Crop
Adult Midgut
Adult Hindgut
Adult Malpighian Tubules
Adult Fat Body
Adult Salivary Gland
Adult Heart
Adult VirginFemale Spermatheca
Adult InseminatedFemale Spermatheca
Adult Ovary
Adult Testis
Adult Male Accessory Gland
Adult Carcass
FlyAtlas Organ/Tissue Expression, larval vs. adult
Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of low expression to a trough of very low expression. Peak expression observed at stages throughout the pupal period.
[download data (TSV)]
Please Note FlyBase no
longer curates genomic clone accessions so this list
may not be complete
cDNA Clones ( 37 )
Please Note
This section lists
cDNAs and ESTs that fall within the genomic extent
of the gene model, which may include cDNAs and ESTs
of genes within introns, or of overlapping genes.
Please see GBrowse for alignment of the cDNAs and ESTs
to the gene model.
bab1 and bab2 are both required for normal development. The functions of bab1 and bab2 show both redundant and divergent aspects, with bab2 playing a predominant role in exerting "bab" function. Both bab1 and bab2 are required for normal ovarian development, but loss-of-function of bab2 causes a more severe ovarian phenotype. There is an overlapping but differential requirement for bab1 and bab2 in the pigmentation of different adult abdominal segments, with A7 being more dependent on bab1 and A5 being more dependent on bab2 activity. Only bab2 plays an essential role in leg development; a bab1 mutant does not cause a mutant leg phenotype, whereas even weak bab2 mutants show leg defects. The strongest defects in ovaries, legs and abdomen that are associated with the "bab" locus are only seen in mutants that are null for both bab1 and bab2.
bab1 integrates regulatory inputs from the homeotic and sex-determination pathways to control sexually dimorphic abdominal pigmentation and segment morphology.
Pigmentation patterns specified by bab1 affect mating preferences, suggesting that sexual selection has contributed to the evolution of bab1 regulation.
bab1 is required for the formation of the terminal filaments in the third larval instar ovary. The N terminal region of the protein encodes for a regulator of gene expression that contains the BTB domain.
bab1 function is dosage-dependent and is required in a graded manner for the specification of tarsal segments. This and its expression pattern suggests that bab1 function may specify segment identity in the tarsus. Strong mutants and deletions for bab1 show a temperature-sensitive haploinsufficient dominant phenotype.
Mutations in bab1 disrupt the formation of the terminal filaments in larval ovaries and cause severe disorganised adult ovaries. bab1 has been cloned and shown to be expressed in the terminal filament cells.
Fabian et al., 2012, Mol. Ecol. 21(19): 4748--4769
Genome-wide patterns of latitudinal differentiation among populations of Drosophila melanogaster from North America. [FBrf0219505]
Krauchunas et al., 2012, Dev. Biol. 370(1): 125--134
Protein phosphorylation changes reveal new candidates in the regulation of egg activation and early embryogenesis in D. melanogaster. [FBrf0219342]
Kvon et al., 2012, Genes Dev. 26(9): 908--913
HOT regions function as patterned developmental enhancers and have a distinct cis-regulatory signature. [FBrf0218184]
Rojas-Ríos et al., 2012, PLoS Biol. 10(4): e1001298
Cytoneme-mediated delivery of hedgehog regulates the expression of bone morphogenetic proteins to maintain germline stem cells in Drosophila. [FBrf0218031]
Bickel et al., 2011, PLoS Genet. 7(1): e1001275
Composite Effects of Polymorphisms near Multiple Regulatory Elements Create a Major-Effect QTL. [FBrf0212845]
Bonchuk et al., 2011, J. Mol. Biol. 412(3): 423--436
Drosophila BTB/POZ Domains of "ttk Group" Can Form Multimers and Selectively Interact with Each Other. [FBrf0215054]
Chatterjee et al., 2011, Development 138(6): 1099--1109
The female-specific Doublesex isoform regulates pleiotropic transcription factors to pattern genital development in Drosophila. [FBrf0213054]
Cherbas et al., 2011, Genome Res. 21(2): 301--314
The transcriptional diversity of 25 Drosophila cell lines. [FBrf0213077]
Gibert et al., 2011, PLoS Genet. 7(1): e1001280
Segregating Variation in the Polycomb Group Gene cramped Alters the Effect of Temperature on Multiple Traits. [FBrf0212864]
Luo et al., 2011, Development 138(13): 2761--2771
Direct targets of the D. melanogaster DSXF protein and the evolution of sexual development. [FBrf0213878]
McNeil et al., 2011, G3 (Bethesda) 1(5): 343--351
Multiple Quantitative Trait Loci Influence the Shape of a Male-Specific Genital Structure in Drosophila melanogaster. [FBrf0217624]
Nègre et al., 2011, Nature 471(7339): 527--531
A cis-regulatory map of the Drosophila genome. [FBrf0213303]
Pruteanu-Malinici et al., 2011, PLoS Comput. Biol. 7(7): e1002098
Automatic Annotation of Spatial Expression Patterns via Sparse Bayesian Factor Models. [FBrf0214618]
Pueyo and Couso, 2011, Dev. Biol. 355(2): 183--193
Tarsal-less peptides control Notch signalling through the Shavenbaby transcription factor. [FBrf0213970]