The gene COP9 complex homolog subunit 8 is referred to in FlyBase by the symbol Dmel\CSN8 (CG42522, FBgn0261437). It is a protein_coding_gene from Drosophila melanogaster. Its molecular function is unknown. There is experimental evidence that it is involved in the biological process: protein stabilization; mitotic G2 DNA damage checkpoint; defense response to bacterium; oogenesis; imaginal disc-derived wing morphogenesis; compound eye morphogenesis. 7 alleles are reported. No phenotypic data is available. It has one annotated transcript and one annotated polypeptide. Protein features are: COP9 signalosome, subunit CSN8. Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of high expression to a trough of moderate expression. Peak expression observed within 00-18 hour embryonic stages. This gene is annotated by FlyBase as a dicistronic gene, meaning that some or all of its transcripts encode two or more polypeptide-coding open reading frames (ORFs) , with each ORF assigned to a different gene. The distribution of RNA-Seq coverage data amongst the different encoded genes cannot be determined. Summary of FlyAtlas Anatomical Expression Data: High or moderate levels of expression observed in all larval and adult organs/tissues. Expression at high levels in the following post-embryonic organs or tissues: larval central nervous system, adult ovary. Expression at moderate levels in the following post-embryonic organs or tissues: adult head, adult eye, adult central nervous system, adult crop, larval/adult midgut, larval/adult hindgut, larval/adult Malpighian tubules, adult heart, larval/adult fat body, larval/adult salivary gland, larval trachea, adult spermathecae, adult male reproductive system, larval/adult carcass. Comments on Affy2 ProbeSet: ProbeSet 1624894_s_at partially aligns to an exonic region of the only FlyBase-annotated transcript isoform of CSN8: 11 out of 14 probes fall into this exonic region. Gene sequence location is 2L:8364855..8365663.
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Summary of FlyAtlas Anatomical Expression Data: High or moderate levels of expression observed in all larval and adult organs/tissues. Expression at high levels in the following post-embryonic organs or tissues: larval central nervous system, adult ovary. Expression at moderate levels in the following post-embryonic organs or tissues: adult head, adult eye, adult central nervous system, adult crop, larval/adult midgut, larval/adult hindgut, larval/adult Malpighian tubules, adult heart, larval/adult fat body, larval/adult salivary gland, larval trachea, adult spermathecae, adult male reproductive system, larval/adult carcass.
[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
612.5
Larval Midgut
276.5
Larval Hindgut
271.3
Larval Malpighian Tubules
372
Larval Fat Body
320
Larval Salivary Gland
369.2
Larval Trachea
486.95
Larval Carcass
312.525
Adult Head
269.2
Adult Eye
383.025
Adult Brain
227.4
Adult Thoracic-Abdominal Ganglion
249.4
Adult Crop
277.2
Adult Midgut
238.2
Adult Hindgut
180.7
Adult Malpighian Tubules
259.2
Adult Fat Body
237.8
Adult Salivary Gland
235.5
Adult Heart
304.975
Adult VirginFemale Spermatheca
408.6
Adult InseminatedFemale Spermatheca
412.1
Adult Ovary
550.3
Adult Testis
134.3
Adult Male Accessory Gland
257.5
Adult Carcass
184.6
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
(612.5)
Larval Midgut
276.5
Larval Hindgut
271.3
Larval Malpighian Tubules
372
Larval Fat Body
320
Larval Salivary Gland
369.2
Larval Trachea
486.95
Larval Carcass
312.525
Adult Head
269.2
Adult Eye
383.025
Adult Brain
227.4
Adult Thoracic-Abdominal Ganglion
249.4
Adult Crop
277.2
Adult Midgut
238.2
Adult Hindgut
180.7
Adult Malpighian Tubules
259.2
Adult Fat Body
237.8
Adult Salivary Gland
235.5
Adult Heart
304.975
Adult VirginFemale Spermatheca
408.6
Adult InseminatedFemale Spermatheca
412.1
Adult Ovary
(550.3)
Adult Testis
134.3
Adult Male Accessory Gland
257.5
Adult Carcass
184.6
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
612.5
Larval Midgut
276.5
Larval Hindgut
271.3
Larval Malpighian Tubules
372
Larval Fat Body
320
Larval Salivary Gland
369.2
Larval Trachea
486.95
Larval Carcass
312.525
Adult Head
269.2
Adult Eye
383.025
Adult Brain
227.4
Adult Thoracic-Abdominal Ganglion
249.4
Adult Crop
277.2
Adult Midgut
238.2
Adult Hindgut
180.7
Adult Malpighian Tubules
259.2
Adult Fat Body
237.8
Adult Salivary Gland
235.5
Adult Heart
304.975
Adult VirginFemale Spermatheca
408.6
Adult InseminatedFemale Spermatheca
412.1
Adult Ovary
550.3
Adult Testis
134.3
Adult Male Accessory Gland
257.5
Adult Carcass
184.6
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
612.5
Larval Midgut
276.5
Larval Hindgut
271.3
Larval Malpighian Tubules
372
Larval Fat Body
320
Larval Salivary Gland
369.2
Larval Trachea
486.95
Larval Carcass
312.525
Adult Head
269.2
Adult Eye
383.025
Adult Brain
227.4
Adult Thoracic-Abdominal Ganglion
249.4
Adult Crop
277.2
Adult Midgut
238.2
Adult Hindgut
180.7
Adult Malpighian Tubules
259.2
Adult Fat Body
237.8
Adult Salivary Gland
235.5
Adult Heart
304.975
Adult VirginFemale Spermatheca
408.6
Adult InseminatedFemale Spermatheca
412.1
Adult Ovary
550.3
Adult Testis
134.3
Adult Male Accessory Gland
257.5
Adult Carcass
184.6
Expression Level Scale
Very high
log, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
612.5
Larval Midgut
276.5
Larval Hindgut
271.3
Larval Malpighian Tubules
372
Larval Fat Body
320
Larval Salivary Gland
369.2
Larval Trachea
486.95
Larval Carcass
312.525
Adult Head
269.2
Adult Eye
383.025
Adult Brain
227.4
Adult Thoracic-Abdominal Ganglion
249.4
Adult Crop
277.2
Adult Midgut
238.2
Adult Hindgut
180.7
Adult Malpighian Tubules
259.2
Adult Fat Body
237.8
Adult Salivary Gland
235.5
Adult Heart
304.975
Adult VirginFemale Spermatheca
408.6
Adult InseminatedFemale Spermatheca
412.1
Adult Ovary
550.3
Adult Testis
134.3
Adult Male Accessory Gland
257.5
Adult Carcass
184.6
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
612.5
Larval Midgut
276.5
Larval Hindgut
271.3
Larval Malpighian Tubules
372
Larval Fat Body
320
Larval Salivary Gland
369.2
Larval Trachea
486.95
Larval Carcass
312.525
Adult Head
269.2
Adult Eye
383.025
Adult Brain
227.4
Adult Thoracic-Abdominal Ganglion
249.4
Adult Crop
277.2
Adult Midgut
238.2
Adult Hindgut
180.7
Adult Malpighian Tubules
259.2
Adult Fat Body
237.8
Adult Salivary Gland
235.5
Adult Heart
304.975
Adult VirginFemale Spermatheca
408.6
Adult InseminatedFemale Spermatheca
412.1
Adult Ovary
550.3
Adult Testis
134.3
Adult Male Accessory Gland
257.5
Adult Carcass
184.6
Expression Level Scale
None
Low
Moderate
High
log, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
612.5
Larval Midgut
276.5
Larval Hindgut
271.3
Larval Malpighian Tubules
372
Larval Fat Body
320
Larval Salivary Gland
369.2
Larval Trachea
486.95
Larval Carcass
312.525
Adult Head
269.2
Adult Eye
383.025
Adult Brain
227.4
Adult Thoracic-Abdominal Ganglion
249.4
Adult Crop
277.2
Adult Midgut
238.2
Adult Hindgut
180.7
Adult Malpighian Tubules
259.2
Adult Fat Body
237.8
Adult Salivary Gland
235.5
Adult Heart
304.975
Adult VirginFemale Spermatheca
408.6
Adult InseminatedFemale Spermatheca
412.1
Adult Ovary
550.3
Adult Testis
134.3
Adult Male Accessory Gland
257.5
Adult Carcass
184.6
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
612.5
Larval Midgut
276.5
Larval Hindgut
271.3
Larval Malpighian Tubules
372
Larval Fat Body
320
Larval Salivary Gland
369.2
Larval Trachea
486.95
Larval Carcass
312.525
Adult Head
269.2
Adult Eye
383.025
Adult Brain
227.4
Adult Thoracic-Abdominal Ganglion
249.4
Adult Crop
277.2
Adult Midgut
238.2
Adult Hindgut
180.7
Adult Malpighian Tubules
259.2
Adult Fat Body
237.8
Adult Salivary Gland
235.5
Adult Heart
304.975
Adult VirginFemale Spermatheca
408.6
Adult InseminatedFemale Spermatheca
412.1
Adult Ovary
550.3
Adult Testis
134.3
Adult Male Accessory Gland
257.5
Adult Carcass
184.6
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 high expression to a trough of moderate expression. Peak expression observed within 00-18 hour embryonic stages. This gene is annotated by FlyBase as a dicistronic gene, meaning that some or all of its transcripts encode two or more polypeptide-coding open reading frames (ORFs) , with each ORF assigned to a different gene. The distribution of RNA-Seq coverage data amongst the different encoded genes cannot be determined.
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Please Note FlyBase no
longer curates genomic clone accessions so this list
may not be complete
cDNA Clones ( 5 )
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 symbol "CG13383" has been used erroneously in FlyBase to name 2 adjacent annotations in different releases of the genome annotation. The two annotations represent the CSN8 and Pp2A-29B genes. In release 2 of the genome annotation, the "CG13383" annotation corresponded to the CSN8 open reading frame (ORF), and the annotation corresponding to Pp2A-29B was labelled "CG17291". In release 3.1 of the genome annotation, the "CG13383" annotation corresponded to the Pp2A-29B open reading frame (ORF). In release 3.2 of the genome annotation, the two genes were annotated as part of a dicistronic transcript represented by the "CG33297" annotation. In release 5.1 of the genome annotation, the two genes were annotated as monocistronic transcripts, as there was no longer sufficient evidence to support a processed dicistronic transcript, with the annotation representing the Pp2A-29B gene being labelled "CG17291" and the annotation representing the CSN8 gene being labelled "CG13383". Since the "CG13383" symbol has been used for two different annotations, the annotation for the CSN8 gene has been renamed to "CG42522" in release 5.13 of the genome annotation to avoid confusion.
RT-PCR analysis of CSN8 and Pp2A-29B transcription provides no evidence that a dicistronic transcript containing both open reading frames is produced. Thus it is concluded that CSN8 is transcribed independently of Pp2A-29B and that a dicistronic transcript is unlikely or is present at undetectable levels.
CSN8 and Pp2A-29B were annotated as being non-overlapping open reading frames derived from a processed dicistronic transcript in release 3.2 of the genome based on the LD10247 cDNA. However, this clone appears to be problematic and there is no longer sufficient evidence to support a processed dicistronic transcript, thus CSN8 and Pp2A-29B have been annotated as genes encoded by monocistronic transcripts in release 5.1 of the genome annotation.