The gene Niemann-Pick type C-1b is referred to in FlyBase by the symbol Dmel\Npc1b (CG12092, FBgn0261675). It is a protein_coding_gene from Drosophila melanogaster. An electronic pipeline based on InterPro domains suggests that it has the molecular function: hedgehog receptor activity. There is experimental evidence that it is involved in the biological process: central nervous system development; dorsal closure; intestinal cholesterol absorption; peripheral nervous system development. 37 alleles are reported. The phenotypes of these alleles are annotated with: dorsal closure embryo; embryonic/first instar larval cuticle; embryonic head; trichogen cell. It has one annotated transcript and one annotated polypeptide. Protein features are: Patched; Sterol-sensing domain. Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of moderately high expression to a trough of no expression detected. Peak expression observed during early larval stages. Summary of FlyAtlas Anatomical Expression Data: Expression at high levels in the following post-embryonic organs or tissues: adult midgut. Expression at moderate levels in the following post-embryonic organs or tissues: larval midgut. Comments on Affy2 ProbeSet: ProbeSet 1632659_at completely aligns to an exonic region of the only FlyBase-annotated transcript isoform of Npc1b. Gene sequence location is X:20805980..20810408.
User Contributed Data
Phenotypic Description from the Red Book (Lindsley
& Zimm 1992)
Gene/Allele symbols may differ
from current usage
l(1)19Ec
Mutant embryos from heterozygous females exhibit no
defects in central or peripheral nervous systems; l(1)19Ec1
and l(1)19Ec18 are lethal in germ-line clones, whereas
l(1)19Ec8 and l(1)19Ec25 germ-line clones exhibit a paternally
rescuable maternal effect. Embryonic phenotype includes head
and dorsal-closure defects, and most embryos are twisted (Perrimon, Smouse, and Miklos, 1989, Genetics 121: 313-31).
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FB2013_03
FB2013_02
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Summary of FlyAtlas Anatomical Expression Data: Expression at high levels in the following post-embryonic organs or tissues: adult midgut. Expression at moderate levels in the following post-embryonic organs or tissues: larval midgut.
[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
1.475
Larval Midgut
487.8
Larval Hindgut
3.9
Larval Malpighian Tubules
1
Larval Fat Body
0.7
Larval Salivary Gland
2.1
Larval Trachea
2.575
Larval Carcass
2.5
Adult Head
1.1
Adult Eye
2.25
Adult Brain
2.5
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
3.9
Adult Midgut
765.8
Adult Hindgut
5
Adult Malpighian Tubules
3.6
Adult Fat Body
5.9
Adult Salivary Gland
8.7
Adult Heart
2.7
Adult VirginFemale Spermatheca
4.2
Adult InseminatedFemale Spermatheca
5.4
Adult Ovary
0.9
Adult Testis
3.4
Adult Male Accessory Gland
2.5
Adult Carcass
10.8
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
1.475
Larval Midgut
487.8
Larval Hindgut
3.9
Larval Malpighian Tubules
1
Larval Fat Body
0.7
Larval Salivary Gland
2.1
Larval Trachea
2.575
Larval Carcass
2.5
Adult Head
1.1
Adult Eye
2.25
Adult Brain
2.5
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
3.9
Adult Midgut
(765.8)
Adult Hindgut
5
Adult Malpighian Tubules
3.6
Adult Fat Body
5.9
Adult Salivary Gland
8.7
Adult Heart
2.7
Adult VirginFemale Spermatheca
4.2
Adult InseminatedFemale Spermatheca
5.4
Adult Ovary
0.9
Adult Testis
3.4
Adult Male Accessory Gland
2.5
Adult Carcass
10.8
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
1.475
Larval Midgut
487.8
Larval Hindgut
3.9
Larval Malpighian Tubules
1
Larval Fat Body
0.7
Larval Salivary Gland
2.1
Larval Trachea
2.575
Larval Carcass
2.5
Adult Head
1.1
Adult Eye
2.25
Adult Brain
2.5
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
3.9
Adult Midgut
765.8
Adult Hindgut
5
Adult Malpighian Tubules
3.6
Adult Fat Body
5.9
Adult Salivary Gland
8.7
Adult Heart
2.7
Adult VirginFemale Spermatheca
4.2
Adult InseminatedFemale Spermatheca
5.4
Adult Ovary
0.9
Adult Testis
3.4
Adult Male Accessory Gland
2.5
Adult Carcass
10.8
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
1.475
Larval Midgut
487.8
Larval Hindgut
3.9
Larval Malpighian Tubules
1
Larval Fat Body
0.7
Larval Salivary Gland
2.1
Larval Trachea
2.575
Larval Carcass
2.5
Adult Head
1.1
Adult Eye
2.25
Adult Brain
2.5
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
3.9
Adult Midgut
765.8
Adult Hindgut
5
Adult Malpighian Tubules
3.6
Adult Fat Body
5.9
Adult Salivary Gland
8.7
Adult Heart
2.7
Adult VirginFemale Spermatheca
4.2
Adult InseminatedFemale Spermatheca
5.4
Adult Ovary
0.9
Adult Testis
3.4
Adult Male Accessory Gland
2.5
Adult Carcass
10.8
Expression Level Scale
Very high
log, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
1.475
Larval Midgut
487.8
Larval Hindgut
3.9
Larval Malpighian Tubules
1
Larval Fat Body
0.7
Larval Salivary Gland
2.1
Larval Trachea
2.575
Larval Carcass
2.5
Adult Head
1.1
Adult Eye
2.25
Adult Brain
2.5
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
3.9
Adult Midgut
765.8
Adult Hindgut
5
Adult Malpighian Tubules
3.6
Adult Fat Body
5.9
Adult Salivary Gland
8.7
Adult Heart
2.7
Adult VirginFemale Spermatheca
4.2
Adult InseminatedFemale Spermatheca
5.4
Adult Ovary
0.9
Adult Testis
3.4
Adult Male Accessory Gland
2.5
Adult Carcass
10.8
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
1.475
Larval Midgut
487.8
Larval Hindgut
3.9
Larval Malpighian Tubules
1
Larval Fat Body
0.7
Larval Salivary Gland
2.1
Larval Trachea
2.575
Larval Carcass
2.5
Adult Head
1.1
Adult Eye
2.25
Adult Brain
2.5
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
3.9
Adult Midgut
765.8
Adult Hindgut
5
Adult Malpighian Tubules
3.6
Adult Fat Body
5.9
Adult Salivary Gland
8.7
Adult Heart
2.7
Adult VirginFemale Spermatheca
4.2
Adult InseminatedFemale Spermatheca
5.4
Adult Ovary
0.9
Adult Testis
3.4
Adult Male Accessory Gland
2.5
Adult Carcass
10.8
Expression Level Scale
None
Low
Moderate
High
log, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
1.475
Larval Midgut
487.8
Larval Hindgut
3.9
Larval Malpighian Tubules
1
Larval Fat Body
0.7
Larval Salivary Gland
2.1
Larval Trachea
2.575
Larval Carcass
2.5
Adult Head
1.1
Adult Eye
2.25
Adult Brain
2.5
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
3.9
Adult Midgut
765.8
Adult Hindgut
5
Adult Malpighian Tubules
3.6
Adult Fat Body
5.9
Adult Salivary Gland
8.7
Adult Heart
2.7
Adult VirginFemale Spermatheca
4.2
Adult InseminatedFemale Spermatheca
5.4
Adult Ovary
0.9
Adult Testis
3.4
Adult Male Accessory Gland
2.5
Adult Carcass
10.8
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
1.475
Larval Midgut
487.8
Larval Hindgut
3.9
Larval Malpighian Tubules
1
Larval Fat Body
0.7
Larval Salivary Gland
2.1
Larval Trachea
2.575
Larval Carcass
2.5
Adult Head
1.1
Adult Eye
2.25
Adult Brain
2.5
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
3.9
Adult Midgut
765.8
Adult Hindgut
5
Adult Malpighian Tubules
3.6
Adult Fat Body
5.9
Adult Salivary Gland
8.7
Adult Heart
2.7
Adult VirginFemale Spermatheca
4.2
Adult InseminatedFemale Spermatheca
5.4
Adult Ovary
0.9
Adult Testis
3.4
Adult Male Accessory Gland
2.5
Adult Carcass
10.8
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 moderately high expression to a trough of no expression detected. Peak expression observed during early larval stages.
[download data (TSV)]
Please Note FlyBase no
longer curates genomic clone accessions so this list
may not be complete
cDNA Clones ( 2 )
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.
The "l(1)19Ec" complementation group was previously associated with the CG11233 annotation in FlyBase, based on information in FBrf0155430. However, data from FBrf0193836 suggests that the "l(1)19Ec" complementation group in fact corresponds to the "CG12092" annotation. Thus, the CG11233 annotation has been split out into a separate gene report in FlyBase and the l(1)19Ec complementation group has instead been merged with the gene corresponding to the "CG12092" annotation (Npc1b). The CG11233 annotation has also been renamed to CG42707 in release 5.26 of the genome annotation to avoid confusion.
FlyBase curator comment: The "l(1)19Ec" complementation group is stated to correspond to the "CG11233" annotation in FBrf0155430. However, data from FBrf0193836 suggests that the "l(1)19Ec" complementation group in fact corresponds to the "CG12092" annotation.
Mutant embryos from heterozygous females exhibit no defects in central or peripheral nervous systems; l(1)19Ec1 and l(1)19Ec18 are lethal in germ-line clones, whereas l(1)19Ec8 and l(1)19Ec25 germ-line clones exhibit a paternally rescuable maternal effect. Embryonic phenotype includes head and dorsal-closure defects and most embryos are twisted (Perrimon, Smouse, and Miklos, 1989).