The gene Sex combs extra is referred to in FlyBase by the symbol Dmel\Sce (CG5595, FBgn0003330). 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: germarium-derived female germ-line cyst encapsulation; ovarian follicle cell stalk formation; sex comb development; histone H2A monoubiquitination; multicellular organismal development; chromatin silencing; sister chromatid cohesion; neurogenesis. 14 alleles are reported. The phenotypes of these alleles are annotated with: larval abdominal segment 7; metathoracic ventral denticle belt; adult thorax; abdominal 4 ventral denticle belt; prothoracic ventral denticle belt; mesothoracic tergum; embryonic thoracic segment; mesothoracic ventral denticle belt; embryonic abdominal segment; denticle belt. It has one annotated transcript and one annotated polypeptide. Protein features are: Zinc finger, C3HC4 RING-type; Zinc finger, RING-type; Zinc finger, RING-type, conserved site; Zinc finger, RING/FYVE/PHD-type. 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 00-12 hour embryonic stages. Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: larval/adult central nervous system, adult ovary. Comments on Affy2 ProbeSet: ProbeSet 1627898_at completely aligns to an exonic region of the only FlyBase-annotated transcript isoform of Sce. Gene sequence location is 3R:23506153..23507751.
User Contributed Data
External Summaries
Phenotypic Description from the Red Book (Lindsley
& Zimm 1992)
Gene/Allele symbols may differ
from current usage
Sce: Sex combs extra
A dominant enhancer of Mcp in the BXC. Sce/Sce
zygotes from Sce/+ mothers die as first instar larvae with
weak posteriorly directed transformations, i.e., A7 displays
some A8 characteristics. Heterozygous offspring normal.
Sce/Sce embryos from clones of homozygous oocytes produced by
pole-cell transplantation display extreme posteriorly directed
segmental transformation. Ventral setal belts of all abdominal and thoracic segments transformed toward A8; head
involution blocked; abdominal type denticle belts also found
anterior to T1 in the presumptive labial and maxillary segments; in addition an extensive belt of abdominal denticles of
unknown derivation forms on the anterodorsal surface of the
embryo. Keilin's organs and ventral pits suppressed in thoracic segments; wart-like sensilla normally found in A8 formed
anteriorally as far as A2. Tracheal branches in A1-7 resemble
those normally found more posteriorly. Sce/+ offspring from
homozygous germ line clones in the mothers may survive to
adulthood or die as pharate adults; they show patches of tissue transformed toward A8.
Recent Updates
Description
What does this section display?
This section contains items that were added to this record for each release.
It currently only tracks new links between this FlyBase report and other
FlyBase data classes (e.g. genes, references, stocks) or controlled
vocabulary terms (e.g. GO, anatomy terms).
What does this section not display?
This section does not currently display links that were removed or gene model changes.
Update Feed
Click the icon below to subscribe to this FlyBase record and receive updates automatically through your
feed reader.
FB2013_03
FB2013_02
All updates
Click here to see a list of all updates to this record from FB2010_08 and on.
Clones hybridise to both 98B and 99C, probably as a result of a repeated sequence. The hybridisation to 98B is very slightly stronger than to 99C, though both are strong. (determined by in situ hybridisation) 99C (determined by in situ hybridisation)
At stage 14 of development, Sce protein but not mRNA is observed in the epidermis, suggesting that Sce translation or stability might be spatially regulated.
At stage 14 of development, Sce protein but not mRNA is observed in the epidermis, suggesting that Sce translation or stability might be spatially regulated.
Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: larval/adult central nervous system, adult ovary.
[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
169.15
Larval Midgut
30.7
Larval Hindgut
63.1
Larval Malpighian Tubules
39.4
Larval Fat Body
37.7
Larval Salivary Gland
73.5
Larval Trachea
60.3
Larval Carcass
43.925
Adult Head
55.4
Adult Eye
57.975
Adult Brain
122.4
Adult Thoracic-Abdominal Ganglion
79.3
Adult Crop
47.9
Adult Midgut
37.7
Adult Hindgut
50.8
Adult Malpighian Tubules
26.7
Adult Fat Body
23.9
Adult Salivary Gland
61.8
Adult Heart
24.85
Adult VirginFemale Spermatheca
26.4
Adult InseminatedFemale Spermatheca
27.4
Adult Ovary
149.1
Adult Testis
40.4
Adult Male Accessory Gland
41.7
Adult Carcass
30.4
Expression Level Scale
None
Low
Moderate
Linear, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
169.15
Larval Midgut
30.7
Larval Hindgut
63.1
Larval Malpighian Tubules
39.4
Larval Fat Body
37.7
Larval Salivary Gland
73.5
Larval Trachea
60.3
Larval Carcass
43.925
Adult Head
55.4
Adult Eye
57.975
Adult Brain
122.4
Adult Thoracic-Abdominal Ganglion
79.3
Adult Crop
47.9
Adult Midgut
37.7
Adult Hindgut
50.8
Adult Malpighian Tubules
26.7
Adult Fat Body
23.9
Adult Salivary Gland
61.8
Adult Heart
24.85
Adult VirginFemale Spermatheca
26.4
Adult InseminatedFemale Spermatheca
27.4
Adult Ovary
149.1
Adult Testis
40.4
Adult Male Accessory Gland
41.7
Adult Carcass
30.4
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
169.15
Larval Midgut
30.7
Larval Hindgut
63.1
Larval Malpighian Tubules
39.4
Larval Fat Body
37.7
Larval Salivary Gland
73.5
Larval Trachea
60.3
Larval Carcass
43.925
Adult Head
55.4
Adult Eye
57.975
Adult Brain
122.4
Adult Thoracic-Abdominal Ganglion
79.3
Adult Crop
47.9
Adult Midgut
37.7
Adult Hindgut
50.8
Adult Malpighian Tubules
26.7
Adult Fat Body
23.9
Adult Salivary Gland
61.8
Adult Heart
24.85
Adult VirginFemale Spermatheca
26.4
Adult InseminatedFemale Spermatheca
27.4
Adult Ovary
149.1
Adult Testis
40.4
Adult Male Accessory Gland
41.7
Adult Carcass
30.4
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
169.15
Larval Midgut
30.7
Larval Hindgut
63.1
Larval Malpighian Tubules
39.4
Larval Fat Body
37.7
Larval Salivary Gland
73.5
Larval Trachea
60.3
Larval Carcass
43.925
Adult Head
55.4
Adult Eye
57.975
Adult Brain
122.4
Adult Thoracic-Abdominal Ganglion
79.3
Adult Crop
47.9
Adult Midgut
37.7
Adult Hindgut
50.8
Adult Malpighian Tubules
26.7
Adult Fat Body
23.9
Adult Salivary Gland
61.8
Adult Heart
24.85
Adult VirginFemale Spermatheca
26.4
Adult InseminatedFemale Spermatheca
27.4
Adult Ovary
149.1
Adult Testis
40.4
Adult Male Accessory Gland
41.7
Adult Carcass
30.4
Expression Level Scale
Very high
log, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
169.15
Larval Midgut
30.7
Larval Hindgut
63.1
Larval Malpighian Tubules
39.4
Larval Fat Body
37.7
Larval Salivary Gland
73.5
Larval Trachea
60.3
Larval Carcass
43.925
Adult Head
55.4
Adult Eye
57.975
Adult Brain
122.4
Adult Thoracic-Abdominal Ganglion
79.3
Adult Crop
47.9
Adult Midgut
37.7
Adult Hindgut
50.8
Adult Malpighian Tubules
26.7
Adult Fat Body
23.9
Adult Salivary Gland
61.8
Adult Heart
24.85
Adult VirginFemale Spermatheca
26.4
Adult InseminatedFemale Spermatheca
27.4
Adult Ovary
149.1
Adult Testis
40.4
Adult Male Accessory Gland
41.7
Adult Carcass
30.4
Expression Level Scale
None
Low
Moderate
log, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
169.15
Larval Midgut
30.7
Larval Hindgut
63.1
Larval Malpighian Tubules
39.4
Larval Fat Body
37.7
Larval Salivary Gland
73.5
Larval Trachea
60.3
Larval Carcass
43.925
Adult Head
55.4
Adult Eye
57.975
Adult Brain
122.4
Adult Thoracic-Abdominal Ganglion
79.3
Adult Crop
47.9
Adult Midgut
37.7
Adult Hindgut
50.8
Adult Malpighian Tubules
26.7
Adult Fat Body
23.9
Adult Salivary Gland
61.8
Adult Heart
24.85
Adult VirginFemale Spermatheca
26.4
Adult InseminatedFemale Spermatheca
27.4
Adult Ovary
149.1
Adult Testis
40.4
Adult Male Accessory Gland
41.7
Adult Carcass
30.4
Expression Level Scale
None
Low
Moderate
High
log, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
169.15
Larval Midgut
30.7
Larval Hindgut
63.1
Larval Malpighian Tubules
39.4
Larval Fat Body
37.7
Larval Salivary Gland
73.5
Larval Trachea
60.3
Larval Carcass
43.925
Adult Head
55.4
Adult Eye
57.975
Adult Brain
122.4
Adult Thoracic-Abdominal Ganglion
79.3
Adult Crop
47.9
Adult Midgut
37.7
Adult Hindgut
50.8
Adult Malpighian Tubules
26.7
Adult Fat Body
23.9
Adult Salivary Gland
61.8
Adult Heart
24.85
Adult VirginFemale Spermatheca
26.4
Adult InseminatedFemale Spermatheca
27.4
Adult Ovary
149.1
Adult Testis
40.4
Adult Male Accessory Gland
41.7
Adult Carcass
30.4
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
169.15
Larval Midgut
30.7
Larval Hindgut
63.1
Larval Malpighian Tubules
39.4
Larval Fat Body
37.7
Larval Salivary Gland
73.5
Larval Trachea
60.3
Larval Carcass
43.925
Adult Head
55.4
Adult Eye
57.975
Adult Brain
122.4
Adult Thoracic-Abdominal Ganglion
79.3
Adult Crop
47.9
Adult Midgut
37.7
Adult Hindgut
50.8
Adult Malpighian Tubules
26.7
Adult Fat Body
23.9
Adult Salivary Gland
61.8
Adult Heart
24.85
Adult VirginFemale Spermatheca
26.4
Adult InseminatedFemale Spermatheca
27.4
Adult Ovary
149.1
Adult Testis
40.4
Adult Male Accessory Gland
41.7
Adult Carcass
30.4
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 00-12 hour embryonic stages.
[download data (TSV)]
Please Note FlyBase no
longer curates genomic clone accessions so this list
may not be complete
cDNA Clones ( 64 )
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.
DNA-protein interactions: genome-wide binding profile assayed for Sce protein in Kc167 cells; see Chromatin_types_NKI collection report. Individual protein-binding experiments listed under "Samples" at GEO_GSE22069 (http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE22069).
In an effort to subdivide the Pc-group genes functionally, the phenotypes of adult flies heterozygous for every pairwise combination of Pc-group mutation were examined. Asx, Pc, Pcl, Psc, Scm and Sce have similar functions in some imaginal tissues. Most duplications of Pc-group genes neither exhibit anterior transformations nor suppress the extra sex comb phenotype of Pc-group mutations, suggesting that not all Pc-group genes behave as predicted by the mass action model.
Mutations of genes in the polycomb group (esc, E(z), Pc, ph-p, ph-d, Scm, Pcl, Sce, Asx, Psc, pho and Antp) cause abnormal segmental development due to the ectopic expression of abd-A and Abd-B. Embryos lacking both maternal and zygotic Sce product were generated to determine abd-A and Abd-B expression patterns.
Gutiérrez et al., 2012, Development 139(1): 117--127
The role of the histone H2A ubiquitinase Sce in Polycomb repression. [FBrf0216868]
Ji et al., 2012, G3 (Bethesda) 2(12): 1651--1660
In Vivo Regulation of E2F1 by Polycomb Group Genes in Drosophila. [FBrf0220353]
Langlais et al., 2012, PLoS ONE 7(11): e48765
Polycomb Group Proteins Bind an engrailed PRE in Both the "ON" and "OFF" Transcriptional States of engrailed. [FBrf0219911]
Mohd-Sarip et al., 2012, Science 336(6082): 744--747
Transcription-independent function of Polycomb group protein PSC in cell cycle control. [FBrf0218404]
Riddle et al., 2012, PLoS Genet. 8(9): e1002954
Enrichment of HP1a on Drosophila Chromosome 4 Genes Creates an Alternate Chromatin Structure Critical for Regulation in this Heterochromatic Domain. [FBrf0219520]
Sakoparnig et al., 2012, J. Comput. Biol. 19(2): 126--138
Binding profiles of chromatin-modifying proteins are predictive for transcriptional activity and promoter-proximal pausing. [FBrf0217402]
Demakov et al., 2011, BMC Genomics 12: 566
Protein composition of interband regions in polytene and cell line chromosomes of Drosophila melanogaster. [FBrf0216974]
Kharchenko et al., 2011, Nature 471(7339): 480--485
Comprehensive analysis of the chromatin landscape in Drosophila melanogaster. [FBrf0213294]
Mikhaylova and Nurminsky, 2011, BMC Biol. 9: 29
Lack of global meiotic sex chromosome inactivation, and paucity of tissue-specific gene expression on the Drosophila X chromosome. [FBrf0213839]
Strübbe et al., 2011, Proc. Natl. Acad. Sci. U.S.A. 108(14): 5572--5577
Polycomb purification by in vivo biotinylation tagging reveals cohesin and Trithorax group proteins as interaction partners. [FBrf0213360]