The gene DNA polymerase α 180kD is referred to in FlyBase by the symbol Dmel\DNApol-α180 (CG6349, FBgn0259113). It is a protein_coding_gene from Drosophila melanogaster. There is experimental evidence that it has the molecular function: DNA-directed DNA polymerase activity. There is experimental evidence that it is involved in the biological process: DNA replication; neurogenesis. 8 alleles are reported. The phenotype of these alleles is annotated with: eye. It has one annotated transcript and one annotated polypeptide. Protein features are: DNA polymerase alpha catalytic subunit, N-terminal domain; DNA polymerase, palm domain; DNA-directed DNA polymerase, family B; DNA-directed DNA polymerase, family B, conserved site; DNA-directed DNA polymerase, family B, exonuclease domain; DNA-directed DNA polymerase, family B, multifunctional domain; DNA-directed DNA polymerase, family B, pol2; Ribonuclease H-like domain; Zinc finger, DNA-directed DNA polymerase, family B, alpha. Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of high expression to a trough of very low expression. Peak expression observed within 00-06 hour embryonic stages. Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: larval central nervous system, adult ovary. Comments on Affy2 ProbeSet: ProbeSet 1633249_at completely aligns to an exonic region of the only FlyBase-annotated transcript isoform of DNApol-alpha180. Gene sequence location is 3R:17492284..17497472.
User Contributed Data
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.
DNApol-alpha180 protein is observed in nuclei of nurse cells and follicle cells. During early stages of embryogenesis, DNApol-alpha180 protein is mainly nuclear although dispersal occurrs during mitotic phases of the cell cycle.
Summary of FlyAtlas Anatomical Expression Data: Expression at moderate levels in the following post-embryonic organs or tissues: larval 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
112.6
Larval Midgut
23.2
Larval Hindgut
44.4
Larval Malpighian Tubules
13.7
Larval Fat Body
14.6
Larval Salivary Gland
88.5
Larval Trachea
48.85
Larval Carcass
53.475
Adult Head
11.6
Adult Eye
3.575
Adult Brain
4.8
Adult Thoracic-Abdominal Ganglion
7.6
Adult Crop
7.4
Adult Midgut
21.8
Adult Hindgut
16.2
Adult Malpighian Tubules
6.7
Adult Fat Body
12.1
Adult Salivary Gland
6
Adult Heart
2.55
Adult VirginFemale Spermatheca
11.5
Adult InseminatedFemale Spermatheca
8.2
Adult Ovary
218.8
Adult Testis
14.5
Adult Male Accessory Gland
8.7
Adult Carcass
15.3
Expression Level Scale
None
Low
Moderate
Linear, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
112.6
Larval Midgut
23.2
Larval Hindgut
44.4
Larval Malpighian Tubules
13.7
Larval Fat Body
14.6
Larval Salivary Gland
88.5
Larval Trachea
48.85
Larval Carcass
53.475
Adult Head
11.6
Adult Eye
3.575
Adult Brain
4.8
Adult Thoracic-Abdominal Ganglion
7.6
Adult Crop
7.4
Adult Midgut
21.8
Adult Hindgut
16.2
Adult Malpighian Tubules
6.7
Adult Fat Body
12.1
Adult Salivary Gland
6
Adult Heart
2.55
Adult VirginFemale Spermatheca
11.5
Adult InseminatedFemale Spermatheca
8.2
Adult Ovary
218.8
Adult Testis
14.5
Adult Male Accessory Gland
8.7
Adult Carcass
15.3
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
112.6
Larval Midgut
23.2
Larval Hindgut
44.4
Larval Malpighian Tubules
13.7
Larval Fat Body
14.6
Larval Salivary Gland
88.5
Larval Trachea
48.85
Larval Carcass
53.475
Adult Head
11.6
Adult Eye
3.575
Adult Brain
4.8
Adult Thoracic-Abdominal Ganglion
7.6
Adult Crop
7.4
Adult Midgut
21.8
Adult Hindgut
16.2
Adult Malpighian Tubules
6.7
Adult Fat Body
12.1
Adult Salivary Gland
6
Adult Heart
2.55
Adult VirginFemale Spermatheca
11.5
Adult InseminatedFemale Spermatheca
8.2
Adult Ovary
218.8
Adult Testis
14.5
Adult Male Accessory Gland
8.7
Adult Carcass
15.3
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
112.6
Larval Midgut
23.2
Larval Hindgut
44.4
Larval Malpighian Tubules
13.7
Larval Fat Body
14.6
Larval Salivary Gland
88.5
Larval Trachea
48.85
Larval Carcass
53.475
Adult Head
11.6
Adult Eye
3.575
Adult Brain
4.8
Adult Thoracic-Abdominal Ganglion
7.6
Adult Crop
7.4
Adult Midgut
21.8
Adult Hindgut
16.2
Adult Malpighian Tubules
6.7
Adult Fat Body
12.1
Adult Salivary Gland
6
Adult Heart
2.55
Adult VirginFemale Spermatheca
11.5
Adult InseminatedFemale Spermatheca
8.2
Adult Ovary
218.8
Adult Testis
14.5
Adult Male Accessory Gland
8.7
Adult Carcass
15.3
Expression Level Scale
Very high
log, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
112.6
Larval Midgut
23.2
Larval Hindgut
44.4
Larval Malpighian Tubules
13.7
Larval Fat Body
14.6
Larval Salivary Gland
88.5
Larval Trachea
48.85
Larval Carcass
53.475
Adult Head
11.6
Adult Eye
3.575
Adult Brain
4.8
Adult Thoracic-Abdominal Ganglion
7.6
Adult Crop
7.4
Adult Midgut
21.8
Adult Hindgut
16.2
Adult Malpighian Tubules
6.7
Adult Fat Body
12.1
Adult Salivary Gland
6
Adult Heart
2.55
Adult VirginFemale Spermatheca
11.5
Adult InseminatedFemale Spermatheca
8.2
Adult Ovary
218.8
Adult Testis
14.5
Adult Male Accessory Gland
8.7
Adult Carcass
15.3
Expression Level Scale
None
Low
Moderate
log, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
112.6
Larval Midgut
23.2
Larval Hindgut
44.4
Larval Malpighian Tubules
13.7
Larval Fat Body
14.6
Larval Salivary Gland
88.5
Larval Trachea
48.85
Larval Carcass
53.475
Adult Head
11.6
Adult Eye
3.575
Adult Brain
4.8
Adult Thoracic-Abdominal Ganglion
7.6
Adult Crop
7.4
Adult Midgut
21.8
Adult Hindgut
16.2
Adult Malpighian Tubules
6.7
Adult Fat Body
12.1
Adult Salivary Gland
6
Adult Heart
2.55
Adult VirginFemale Spermatheca
11.5
Adult InseminatedFemale Spermatheca
8.2
Adult Ovary
218.8
Adult Testis
14.5
Adult Male Accessory Gland
8.7
Adult Carcass
15.3
Expression Level Scale
None
Low
Moderate
High
log, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
112.6
Larval Midgut
23.2
Larval Hindgut
44.4
Larval Malpighian Tubules
13.7
Larval Fat Body
14.6
Larval Salivary Gland
88.5
Larval Trachea
48.85
Larval Carcass
53.475
Adult Head
11.6
Adult Eye
3.575
Adult Brain
4.8
Adult Thoracic-Abdominal Ganglion
7.6
Adult Crop
7.4
Adult Midgut
21.8
Adult Hindgut
16.2
Adult Malpighian Tubules
6.7
Adult Fat Body
12.1
Adult Salivary Gland
6
Adult Heart
2.55
Adult VirginFemale Spermatheca
11.5
Adult InseminatedFemale Spermatheca
8.2
Adult Ovary
218.8
Adult Testis
14.5
Adult Male Accessory Gland
8.7
Adult Carcass
15.3
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
112.6
Larval Midgut
23.2
Larval Hindgut
44.4
Larval Malpighian Tubules
13.7
Larval Fat Body
14.6
Larval Salivary Gland
88.5
Larval Trachea
48.85
Larval Carcass
53.475
Adult Head
11.6
Adult Eye
3.575
Adult Brain
4.8
Adult Thoracic-Abdominal Ganglion
7.6
Adult Crop
7.4
Adult Midgut
21.8
Adult Hindgut
16.2
Adult Malpighian Tubules
6.7
Adult Fat Body
12.1
Adult Salivary Gland
6
Adult Heart
2.55
Adult VirginFemale Spermatheca
11.5
Adult InseminatedFemale Spermatheca
8.2
Adult Ovary
218.8
Adult Testis
14.5
Adult Male Accessory Gland
8.7
Adult Carcass
15.3
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 high expression to a trough of very low expression. Peak expression observed within 00-06 hour embryonic stages.
[download data (TSV)]
Please Note FlyBase no
longer curates genomic clone accessions so this list
may not be complete
cDNA Clones ( 17 )
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.
Reducing DNApol-α180 levels by itself des not result in any defects, while reducing DNApol-α180 levels in the absence of mei-41 results in elevated p53-dependent apoptosis, rough eyes and increased genomic instability.
In vitro binding studies of E2f and Dp to the DNApol-α180 promoter region reveals each of the E2f binding sites plays a distinct role as positive or negative element in the regulation of the DNApol-α180 promoter during development.
A specific polyclonal antibody stains interphase nuclei and the surrounding cytoplasmic regions. The protein is present in the embryo as a maternal product. The 130kD proteolytic product is also present in embryos as a maternal product; unlike the 180kD protein this decreases in amount after cycle 10 and is not detectable after cycle 14.
DNApol-α180 is negatively regulated by zen protein. This repression is mediated by the DRE (DNA replication-related element) sites in the DNApol-α180 promoter. The amount of Dref is reduced in transfected Kc cells expressing zen, suggesting that zen represses expression of DNA replication-related genes by reducing the amount of Dref.
Immunoaffinity-purified DNA polymerase α-primase includes not only the 180kD protein, but also 145, 140 and 130kD proteins, due to proteolytic cleavage of the 180kD protein at F130/S131, T180/S181 and F237/S238.
Embryonic DNA polymerase α complex, isolated by immunological techniques, contains a protein kinase activity. The kinase will phosphorylate His1, but prefers peptides contained in the DNA polymerase α kinase complex.
Mono Q anion exchange chromatography used to resolve DNA polymerase activities in 0-2.5hr embryos. DNApol-δ and DNApol-α distinguished by copurification with DNAprimase (DNApol-α) or 3'-5'exonuclease activity (DNApol-δ), immunoblot analysis with DNApol-α specific antibodies, sensitivity to aphidicolin (both DNApol-α and DNApol-δ sensitive) and BuPdGTP (DNApol-α more sensitive), and processivity measurements with and without PCNA (DNApol-δ has PCNA-inducible high processivity).
Recognition and binding of synthetic template-primers by DNA-polymerase-α holoenzyme studied: at least 4 base pair complementarity is required for efficient binding and incorporation. Results suggest that there are intrinsic aspects to the mechanism of nucleotide incorporation which ensure fidelity of DNA synthesis and may provide insight into mechanism of polymerase translocation along templates.
25bp DNA oligomer containing m4T is used in a gel extension assay to measure the efficiency of incorporation of dATP and dGTP opposite m4T using a DNA polymerase α-primase complex. The DNA polymerase α shows a clear preference for pairing with dGTP.
Lee et al., 2012, Mol. Cell. Biol. 32(11): 2110--2120
A Dual Role for the dREAM/MMB Complex in the Regulation of Differentiation-Specific E2F/RB Target Genes. [FBrf0218296]
Suyari et al., 2012, Gene 495(2): 104--114
Differential requirement for the N-terminal catalytic domain of the DNA polymerase ε p255 subunit in the mitotic cell cycle and the endocycle. [FBrf0217428]
Érdi et al., 2012, Autophagy 8(7): 1124--1135
Loss of the starvation-induced gene Rack1 leads to glycogen deficiency and impaired autophagic responses in Drosophila. [FBrf0219844]
Gosnell and Christensen, 2011, BMC Mol. Biol. 12: 13
Drosophila Ctf4 is essential for efficient DNA replication and normal cell cycle progression. [FBrf0213597]