The gene Bicaudal C is referred to in FlyBase by the symbol Dmel\BicC (CG4824, FBgn0000182). It is a protein_coding_gene from Drosophila melanogaster. There is experimental evidence that it has the molecular function: protein binding. There is experimental evidence that it is involved in the biological process: mitosis; oogenesis; microtubule cytoskeleton organization; actin cytoskeleton organization; ovarian follicle cell migration. 25 alleles are reported. The phenotypes of these alleles are annotated with: follicle cell; embryonic head; egg; dorsal appendage; oocyte; pole cell; nurse cell; embryo. It has 3 annotated transcripts and 3 annotated polypeptides. Protein features are: K Homology domain; K Homology domain, type 1; Sterile alpha motif domain; Sterile alpha motif, type 1; Sterile alpha motif/pointed domain. Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of very high expression to a trough of extremely low expression. Peak expression observed within 00-06 hour embryonic stages, in adult female stages. Summary of FlyAtlas Anatomical Expression Data: Expression at high levels in the following post-embryonic organs or tissues: adult ovary. Expression at moderate levels in the following post-embryonic organs or tissues: adult testis. Comments on Affy2 ProbeSet: ProbeSet 1631632_s_at completely aligns to an exonic region common to each of the 3 FlyBase-annotated transcript isoforms of BicC. Gene sequence location is 2L:16042032..16048626.
User Contributed Data
External Summaries
Phenotypic Description from the Red Book (Lindsley
& Zimm 1992)
Gene/Allele symbols may differ
from current usage
BicC: Bicaudal C
A maternal-effect semilethal; the majority of
embryos produced by BicC/+ mothers given rise to normal larvae
a minority fail to hatch and vary in phenotype. Double-abdomen embryos have a normal posterior end and the anterior
end replaced by mirror image series of posterior segments,
e.g. A8-A4|A4-A8 to A8-A6|A6-A8; they need not have the same
number of segments on either side of the reversal of polarity,
the duplicated portion having fewer segments; generally more
segments seen ventrally than dorsally. Less severely affected
embryros may be headless, or with reduced mouth parts, or even
normal appearing but failing to hatch. The incidence and
severity of abnormal embryos vary with genetic background and
temperature, the incidence being highest at 25 and decreasing
at lower and higher temperatures. The majority of the embryos
produced by BicC/BicD trans heterozygotes are abnormal.
Homozygotes are abnormal. Homozygous BicC females sterile,
germ-cell differentiation blocked at the beginning of vitellogenesis. Follicle cells do not invade between oocyte and
nurse cells; they do synthesize a chorion which remains open
ended like a chalice or a cup; such eggs never fertilized.
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FB2013_03
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FBrf0091058 and FBrf0082309 differ in their conclusions about molecular mapping of the proximal breakpoint of Df(2L)Scorv18 with respect to the BicC transcription unit. Weight of evidence favours the FBrf0091058 interpretation (see Roote, 1999.1.18, personal communication).
BicC protein is first detected in the oocyte at stage 3 but remains faint until stage 5 when the levels increase substantially. In stages 4-6, BicC protein is present throughout the ooctye cytoplasm but is enriched at the posterior pole. In stages 7 to 9, it is abundant in the oocyte cytoplasm. In addition, it is enriched at the anterior of the oocyte and around the cortex. From stage 10 on, BicC protein is present at high levels in nurse cells.
Summary of FlyAtlas Anatomical Expression Data: Expression at high levels in the following post-embryonic organs or tissues: adult ovary. Expression at moderate levels in the following post-embryonic organs or tissues: adult testis.
[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
8.625
Larval Midgut
12.1
Larval Hindgut
5.2
Larval Malpighian Tubules
5.4
Larval Fat Body
40.4
Larval Salivary Gland
6.4
Larval Trachea
6.1
Larval Carcass
4.225
Adult Head
4.4
Adult Eye
9.275
Adult Brain
4
Adult Thoracic-Abdominal Ganglion
8.2
Adult Crop
14
Adult Midgut
7.1
Adult Hindgut
5.4
Adult Malpighian Tubules
26.9
Adult Fat Body
26.9
Adult Salivary Gland
20.7
Adult Heart
6.3
Adult VirginFemale Spermatheca
30.1
Adult InseminatedFemale Spermatheca
26.3
Adult Ovary
1501.9
Adult Testis
428.1
Adult Male Accessory Gland
4.3
Adult Carcass
46.3
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
8.625
Larval Midgut
12.1
Larval Hindgut
5.2
Larval Malpighian Tubules
5.4
Larval Fat Body
40.4
Larval Salivary Gland
6.4
Larval Trachea
6.1
Larval Carcass
4.225
Adult Head
4.4
Adult Eye
9.275
Adult Brain
4
Adult Thoracic-Abdominal Ganglion
8.2
Adult Crop
14
Adult Midgut
7.1
Adult Hindgut
5.4
Adult Malpighian Tubules
26.9
Adult Fat Body
26.9
Adult Salivary Gland
20.7
Adult Heart
6.3
Adult VirginFemale Spermatheca
30.1
Adult InseminatedFemale Spermatheca
26.3
Adult Ovary
(1501.9)
Adult Testis
428.1
Adult Male Accessory Gland
4.3
Adult Carcass
46.3
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
8.625
Larval Midgut
12.1
Larval Hindgut
5.2
Larval Malpighian Tubules
5.4
Larval Fat Body
40.4
Larval Salivary Gland
6.4
Larval Trachea
6.1
Larval Carcass
4.225
Adult Head
4.4
Adult Eye
9.275
Adult Brain
4
Adult Thoracic-Abdominal Ganglion
8.2
Adult Crop
14
Adult Midgut
7.1
Adult Hindgut
5.4
Adult Malpighian Tubules
26.9
Adult Fat Body
26.9
Adult Salivary Gland
20.7
Adult Heart
6.3
Adult VirginFemale Spermatheca
30.1
Adult InseminatedFemale Spermatheca
26.3
Adult Ovary
(1501.9)
Adult Testis
428.1
Adult Male Accessory Gland
4.3
Adult Carcass
46.3
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
8.625
Larval Midgut
12.1
Larval Hindgut
5.2
Larval Malpighian Tubules
5.4
Larval Fat Body
40.4
Larval Salivary Gland
6.4
Larval Trachea
6.1
Larval Carcass
4.225
Adult Head
4.4
Adult Eye
9.275
Adult Brain
4
Adult Thoracic-Abdominal Ganglion
8.2
Adult Crop
14
Adult Midgut
7.1
Adult Hindgut
5.4
Adult Malpighian Tubules
26.9
Adult Fat Body
26.9
Adult Salivary Gland
20.7
Adult Heart
6.3
Adult VirginFemale Spermatheca
30.1
Adult InseminatedFemale Spermatheca
26.3
Adult Ovary
1501.9
Adult Testis
428.1
Adult Male Accessory Gland
4.3
Adult Carcass
46.3
Expression Level Scale
Very high
log, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
8.625
Larval Midgut
12.1
Larval Hindgut
5.2
Larval Malpighian Tubules
5.4
Larval Fat Body
40.4
Larval Salivary Gland
6.4
Larval Trachea
6.1
Larval Carcass
4.225
Adult Head
4.4
Adult Eye
9.275
Adult Brain
4
Adult Thoracic-Abdominal Ganglion
8.2
Adult Crop
14
Adult Midgut
7.1
Adult Hindgut
5.4
Adult Malpighian Tubules
26.9
Adult Fat Body
26.9
Adult Salivary Gland
20.7
Adult Heart
6.3
Adult VirginFemale Spermatheca
30.1
Adult InseminatedFemale Spermatheca
26.3
Adult Ovary
1501.9
Adult Testis
428.1
Adult Male Accessory Gland
4.3
Adult Carcass
46.3
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
8.625
Larval Midgut
12.1
Larval Hindgut
5.2
Larval Malpighian Tubules
5.4
Larval Fat Body
40.4
Larval Salivary Gland
6.4
Larval Trachea
6.1
Larval Carcass
4.225
Adult Head
4.4
Adult Eye
9.275
Adult Brain
4
Adult Thoracic-Abdominal Ganglion
8.2
Adult Crop
14
Adult Midgut
7.1
Adult Hindgut
5.4
Adult Malpighian Tubules
26.9
Adult Fat Body
26.9
Adult Salivary Gland
20.7
Adult Heart
6.3
Adult VirginFemale Spermatheca
30.1
Adult InseminatedFemale Spermatheca
26.3
Adult Ovary
(1501.9)
Adult Testis
428.1
Adult Male Accessory Gland
4.3
Adult Carcass
46.3
Expression Level Scale
None
Low
Moderate
High
log, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
8.625
Larval Midgut
12.1
Larval Hindgut
5.2
Larval Malpighian Tubules
5.4
Larval Fat Body
40.4
Larval Salivary Gland
6.4
Larval Trachea
6.1
Larval Carcass
4.225
Adult Head
4.4
Adult Eye
9.275
Adult Brain
4
Adult Thoracic-Abdominal Ganglion
8.2
Adult Crop
14
Adult Midgut
7.1
Adult Hindgut
5.4
Adult Malpighian Tubules
26.9
Adult Fat Body
26.9
Adult Salivary Gland
20.7
Adult Heart
6.3
Adult VirginFemale Spermatheca
30.1
Adult InseminatedFemale Spermatheca
26.3
Adult Ovary
1501.9
Adult Testis
428.1
Adult Male Accessory Gland
4.3
Adult Carcass
46.3
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
8.625
Larval Midgut
12.1
Larval Hindgut
5.2
Larval Malpighian Tubules
5.4
Larval Fat Body
40.4
Larval Salivary Gland
6.4
Larval Trachea
6.1
Larval Carcass
4.225
Adult Head
4.4
Adult Eye
9.275
Adult Brain
4
Adult Thoracic-Abdominal Ganglion
8.2
Adult Crop
14
Adult Midgut
7.1
Adult Hindgut
5.4
Adult Malpighian Tubules
26.9
Adult Fat Body
26.9
Adult Salivary Gland
20.7
Adult Heart
6.3
Adult VirginFemale Spermatheca
30.1
Adult InseminatedFemale Spermatheca
26.3
Adult Ovary
1501.9
Adult Testis
428.1
Adult Male Accessory Gland
4.3
Adult Carcass
46.3
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 very high expression to a trough of extremely low expression. Peak expression observed within 00-06 hour embryonic stages, in adult female stages.
[download data (TSV)]
Please Note FlyBase no
longer curates genomic clone accessions so this list
may not be complete
cDNA Clones ( 244 )
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.
BicC produces a localised RNA, which encodes a putative RNA binding protein containing KH domains. The spatial and temporal characteristics of BicC expression and the nature of the BicC protein indicate a function for it in the localisation of specific RNAs during oogenesis.
A maternal-effect semi-lethal; the majority of embryos produced by BicC/+ mothers given rise to normal larvae a minority fail to hatch and vary in phenotype. Double-abdomen embryos have a normal posterior end and the anterior end replaced by mirror image series of posterior segments, e.g. A8-A4|A4-A8 to A8-A6|A6-A8; they need not have the same number of segments on either side of the reversal of polarity, the duplicated portion having fewer segments; generally more segments seen ventrally than dorsally. Less severely affected embryos may be headless, or with reduced mouth parts, or even normal appearing but failing to hatch. The incidence and severity of abnormal embryos vary with genetic background and temperature, the incidence being highest at 25oC and decreasing at lower and higher temperatures. The majority of the embryos produced by BicC/BicD trans heterozygotes are abnormal. Homozygotes are abnormal. Homozygous BicC females sterile, germ-cell differentiation blocked at the beginning of vitellogenesis. Follicle cells do not invade between oocyte and nurse cells; they do synthesize a chorion which remains open ended like a chalice or a cup; such eggs never fertilized.