A Database of Drosophila Genes & Genomes

FB2008_07, released August 8, 2008
 

Allele Dmel\PtenScer\UAS.cGb

General Information
SymbolDmel\PtenScer\UAS.cGbSpeciesD. melanogaster
NameSaccharomyces cerevisiae UAS construct a of GaoFlyBase IDFBal0117671
Feature typealleleCreated / Updated2006-08-20/2006-08-20
Associated geneDmel\Pten
Allele class
Mutagenin vitro construct | regulatory fusion
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Associated Sequence Data
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Protein sequence
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      Cytology
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      Expression of PtenScer\UAS.cGb driven by Scer\GAL4Bx-MS1096 produces wings of a dramatically reduced size. 18% of the reduction of wing size is due to a decrease in cell number, the rest is due to a decrease in cell size. Expression of PtenScer\UAS.cGb driven by Scer\GAL4en-e16E or Scer\GAL4ap-md544 causes a reduction in size in the posterior and dorsal compartments of the wing respectively. Expression of PtenScer\UAS.cGb driven by Scer\GAL4arm.PS causes lethality in almost all flies. Those flies that do survive show a reduction in body size.
      Expression of S6kScer\UAS.cWa under the control of Scer\GAL4ey.PH reduces eye size.
      Expression of PtenScer\UAS.cGb under the control of Scer\GAL4Act5C.PP inhibits larval growth. Clones of cells expressing PtenScer\UAS.cGb under the control of Scer\GAL4Act5C.PP in the salivary glands and fat body are greatly reduced in size and have much smaller nuclei with far less DNA than adjacent control cells. Expression of PtenScer\UAS.cGb under the control of Scer\GAL4Adh.PF, Scer\GAL4en-e16E or Scer\GAL4Act5C.PP has no effect on viability under starvation conditions.
      When PtenScer\UAS.cGb is driven by Scer\GAL4bun-Switch1.32 (in adults fed on mifepristone) the median lifespan can increased by as much as 20%.
      Ommatidial size in Scer\GAL4GMR.PF/+; PtenScer\UAS.cGb/+ flies is reduced to 0.69 of wild-type.
      When expression is driven in clones in the early L3 larval fat body increased autophagy occurs. When expression is driven by Scer\GAL4Lsp2.PH, relatively late in the larval fat body, no effect on autophagic activity of fat droplet aggregation is detectable.
      Flies expressing PtenScer\UAS.cGb under the control of both Scer\GAL4tin.cBa and Scer\GAL4Scer\UAS.cHa, show a consistently high heart rate; in contrast to wild-type flies, this heart rate does not decrease with age. These flies also show a low stress-induced heart failure rate that does not increase with age, again in contrast to wild-type flies. These effects are true for both male and female flies.
      Expression of PtenScer\UAS.cGb, under the control of Scer\GAL429BD, significantly reduces the size of the salivary gland in third instar larvae.
      When fed ad libitum, third instar larvae expressing PtenScer\UAS.cGb, under the control of Scer\GAL4NPFR1.6.6 display hyperactive feeding on solid food, similar to control third instar larvae deprived of food for 40 minutes. These third instar larvae do not exhibit significant changes in the intake rate of the richer liquid food, relative to controls.
      Expression of PtenScer\UAS.cGb in the prothoracic gland and corpora allata, driven by Scer\GAL4P0206, suppresses the growth of both of these ring gland components. Scer\GAL4P0206>PtenScer\UAS.cGb flies have larger bodies than controls; this phenotype is first seen at the L2 stage, as evidenced by the length of the mouth hooks. As pharate adults, these flies are 42% heavier than controls. This phenotype continues into adulthood as can be seen by the unusually large adult wing areas. Scer\GAL4P0206>PtenScer\UAS.cGb larvae are developmentally delayed and molt to L2 later than controls. These larvae either molt to L3 later than controls or pupariate prematurely in the L2 stage. None of the L2 puparia eclose, although a few (<1%) develop to the pharate adult stage. Rearing Scer\GAL4P0206>PtenScer\UAS.cGb larvae on yeast paste enhances the amount of precocious L2 puparia, while rearing larvae on food containing 50% of the normal nutrients suppresses this phenotype, resulting in all larvae forming large L3 puparia. Expression of PtenScer\UAS.cGb in the prothoracic gland, driven by Scer\GAL4phm.PO, causes a prolonged L1 stage followed by death. Expression of PtenScer\UAS.cGb in the corpora allata, driven by Scer\GAL4Aug21, has no effect on pharate adult weight or on adult wing area.
      Scer\GAL4[GMR.long]>Pten[Scer\UAS.cGb] mutants show no defects in opsin regulation.
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      The addition of BacA\p35Scer\UAS.cHa does not suppress the wing phenotype seen in PtenScer\UAS.cGb,Scer\GAL4Bx-MS1096 flies. The addition of Pi3K92EScer\UAS.T:Hsap\MYC suppresses the wing phenotype seen in PtenScer\UAS.cGb,Scer\GAL4Bx-MS1096 flies. Flies expressing Pi3K92ED954A.Scer\UAS.T:Hsap\MYC and PtenScer\UAS.cGb under the control of Scer\GAL4Bx-MS1096 have wings even smaller than flies expressing Pi3K92ED954A.Scer\UAS.T:Hsap\MYC or PtenScer\UAS.cGb alone.
      Expression of both Tsc1Scer\UAS.cTa and gigScer\UAS.cTa in the eye under the control of Scer\GAL4ey.PH results in a much smaller eye than normal. Coexpression of PtenScer\UAS.cGb enhances the phenotype.
      The small eye phenotype of PtenScer\UAS.cGb; Scer\GAL4GMR.PF animals is suppressed by RhebScer\UAS.cSa. The resulting eyes are slightly rough.
      The large size and disorganisation of ommatidia in Scer\GAL4GMR.PF/+; RhebEP50.084/+ flies is unaffected by PtenScer\UAS.cGb.
      Flies expressing Pi3K92E[D954A.Scer\UAS.T:Hsap\MYC] and Pten[Scer\UAS.cGb] under the control of Scer\GAL4[Bx-MS1096] have wings even smaller than flies expressing Pi3K92E[D954A.Scer\UAS.T:Hsap\MYC] or Pten[Scer\UAS.cGb] alone.
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      Statement
      Reference
      The addition of BacA\p35[Scer\UAS.cHa] does not suppress the wing phenotype seen in Pten[Scer\UAS.cGb],Scer\GAL4[Bx-MS1096] flies. The addition of Pi3K92E[Scer\UAS.T:Hsap\MYC] suppresses the wing phenotype seen in Pten[Scer\UAS.cGb],Scer\GAL4[Bx-MS1096] flies.
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      Symbol Synonym
      PtenScer\UAS.cGb
       
      Name Synonym
      Saccharomyces cerevisiae UAS construct a of Gao
      Secondary FlyBase IDs
        hide References ( 14 )
        Research paper
        Mikeladze-Dvali et al., 2005, Cell 122(5): 775--787
        The growth regulators warts/lats and melted interact in a bistable loop to specify opposite fates in Drosophila R8 photoreceptors. [FBrf0187233]
        Mirth et al., 2005, Curr. Biol. 15(20): 1796--1807
        The role of the prothoracic gland in determining critical weight for metamorphosis in Drosophila melanogaster. [FBrf0190035]
        Takeo et al., 2005, Dev. Biol. 284(1): 204--218
        Expression of a secreted form of Dally, a Drosophila glypican, induces overgrowth phenotype by affecting action range of Hedgehog. [FBrf0187400]
        Wu et al., 2005, Proc. Natl. Acad. Sci. USA 102(37): 13289--13294
        Regulation of hunger-driven behaviors by neural ribosomal S6 kinase in Drosophila. [FBrf0188283]
        Hwangbo et al., 2004, Nature 429(6991): 562--566
        Drosophila dFOXO controls lifespan and regulates insulin signalling in brain and fat body. [FBrf0179031]
        Rusten et al., 2004, Dev. Cell 7(2): 179--192
        Programmed autophagy in the Drosophila fat body is induced by ecdysone through regulation of the PI3K pathway. [FBrf0180118]
        Wessells et al., 2004, Nature Genetics 36(12): 1275--1281
        Insulin regulation of heart function in aging fruit flies. [FBrf0184189]
        Saucedo et al., 2003, Nature Cell Biol. 5(6): 566--571
        Rheb promotes cell growth as a component of the insulin/TOR signalling network. [FBrf0160913]
        Szuplewski et al., 2003, Development 130(16): 3651--3662
        The Drosophila bZIP transcription factor Vrille is involved in hair and cell growth. [FBrf0160992]
        Britton et al., 2002, Dev. Cell 2(2): 239--249
        Drosophila's Insulin/PI3-Kinase pathway coordinates cellular metabolism with nutritional conditions. [FBrf0144797]
        Tapon et al., 2001, Cell 105(3): 345--355
        The Drosophila tuberous sclerosis complex gene homologs restrict cell growth and cell proliferation. [FBrf0135684]
        Gao et al., 2000, Dev. Biol. 221(2): 404--418
        Drosophila PTEN regulates cell growth and proliferation through PI3K-dependent and -independent pathways. [FBrf0127089]
        Supplementary material
        Scott et al., 2004, Dev. Cell 7:
        Supplementary material. [FBrf0183440]
        Letter
        Stocker et al., 2003, Nature Cell Biol. 5(6): 559--565
        Rheb is an essential regulator of S6K in controlling cell growth in Drosophila. [FBrf0160980]