Allele Dmel\diaCA.Scer\UAS.T:Ivir\HA1
| General Information | |||
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| Symbol | Dmel\diaCA.Scer\UAS.T:Ivir\HA1 | Species | D. melanogaster |
| Name | FlyBase ID | FBal0159328 | |
| Feature type | allele | Associated gene | Dmel\dia |
| Allele class | |||
| Mutagen | in vitro construct - regulatory fusion | ||
Recent Updates
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| Description |
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| FB2013_03 | |||
| FB2013_02 | |||
| All updates | Click here to see a list of all updates to this record from FB2010_08 and on. | ||
Nature of the Allele
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| Allele class | |||
| Mutagen | |||
| Mutations Mapped to the Genome | |||
Type Location Additional Notes References | |||
| Associated Sequence Data | |||
| DDBJ
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EMBL / GenBank | DNA sequence Protein sequence Name | ||
| UniProtKB/Swiss-Prot | |||
| UniProtKB/TrEMBL | |||
| Progenitor genotype | |||
| Nature of the lesion | Statement Reference Construct: Scer\UAS regulatory sequences drive expression of dia cDNA SD13607 in which the N-terminal 449 amino acids have been replaced by a short sequence encoding three T:Ivir\HA1 tags, and the C-terminal amino acids 1029-1091 (the predicted autoinhibitory domain) have been removed. Encodes an activated form of dia. | ||
| Carried in construct | |||
| Tagged with | |||
| Cytology | |||
Phenotypic Data
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Phenotypic Class
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Phenotype Manifest In
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organism | dorsal closure stage, with Scer\GAL4c381 | |||
Detailed Description
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Statement Reference Embryos expressing dia[CA.Scer\UAS.T:Ivir\HA1] under the control of either Scer\GAL4[en-e16E] or Scer\GAL4[prd.RG1] have deep epidermal grooves. The epidermis appears to impinge upon the dorsal trunk in these embryos and the underlying trachea are more convoluted than wild type. No breaks in the tracheal lateral trunk are seen in these embryos. Flies expressing dia[CA.Scer\UAS.T:Ivir\HA1] in the Johnston's organ under the control of Scer\GAL4[ph-p-NP1046], Scer\GAL4[CG13795-NP1245], Scer\GAL4[NP6303] or Scer\GAL4[JO15] display an impaired response to sound. A significant reduction in sound-evoked potentials compared with wild-type and parental controls is observed in these animals. Expression of dia[CA.Scer\UAS.T:Ivir\HA1] under the control of Scer\GAL4[mat.αTub67C.T:Hsim\VP16] results in a collapse of the epithelium, and the apical cell surfaces are reduced in size in embryos at germ-band extension. Expression of dia[CA.Scer\UAS.T:Ivir\HA1] in pupal eye MARCM clones does not affect the adherens junctions. dia[CA.Scer\UAS.T:Ivir\HA1] expressing cells develop a rounded morphology, especially primary pigment epithelial cells. Expression of dia[CA.Scer\UAS.T:Ivir\HA1] under the control of Scer\GAL4[en-e16E] in individual amnioserosa cells induces premature apical constriction in these cells, and neighbouring wild-type cells become elongated. Cortical F-actin is increased in the cells that express dia[CA.Scer\UAS.T:Ivir\HA1] under the control of Scer\GAL4[en-e16E].
Expression of dia[CA.Scer\UAS.T:Ivir\HA1] under the control of Scer\GAL4[c381] in all amnioserosal cells results in all the cells becoming apically smaller and uniformly round, suggesting that they all attempt to constrict simultaneously. Cortical F-actin is increased in the amnioserosa cells. The network of apical myosin filaments that is normally seen in wild-type cells become reorganised into stress-fibre-like bundles parallel to the epithelium.
Dorsal closure is substantially slowed in embryos expressing dia[CA.Scer\UAS.T:Ivir\HA1] under the control of Scer\GAL4[c381] compared to wild type. Most of the embryos do complete dorsal closure, but have defects in cell-cell matching as the two epidermal sheets meet.
Segmental grooves persist much longer than normal in embryos expressing dia[CA.Scer\UAS.T:Ivir\HA1] under the control of either Scer\GAL4[en-e16E] or Scer\GAL4[prd.RG1] and become very deep. Epidermal cells expressing dia[CA.Scer\UAS.T:Ivir\HA1] under the control of either Scer\GAL4[en-e16E] are wider in the anterior/posterior axis and shorter in the dorsal/ventral axis than neighbouring wild-type cells.
Epidermal cells expressing dia[CA.Scer\UAS.T:Ivir\HA1] under the control of Scer\GAL4[en-e16E] have elevated cortical F-actin levels compared to wild type.
Epidermal cells expressing dia[CA.Scer\UAS.T:Ivir\HA1] under the control of Scer\GAL4[prd.RG1] have higher levels of cortical myosin compared to wild-type neighbouring cells, with myosin being especially enriched at the dorsal/ventral cell borders. Expression of dia[CA.Scer\UAS.T:Ivir\HA1] pan-neuronally under the control of Scer\GAL4[elav-C155] results in disruption of CNS fasciculation and thinning of commissures and breaks in connectives can be observed. Overexpression of diaCA.Scer\UAS.T:Ivir\HA1, under the control of Scer\GAL4btl.PS, leads to fusion defects in the dorsal trunk, constrictions at the fusion cells, widening at other areas of the dorsal trunk and impairments of terminal branch differentiation. Border cell migration is blocked by expression of diaCA.Scer\UAS.T:Ivir\HA1 under the control of Scer\GAL4slbo.2.6. | |||
External Data
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| Linkouts | |||
Interactions
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Phenotypic Class
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Phenotype Manifest In
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NOT suppressed by | |||
Statement Reference Scer\GAL4en-e16E, diaCA.Scer\UAS.T:Ivir\HA1 has embryonic epidermis phenotype, non-suppressible by zip1/zip1 | |||
NOT Suppressor of | |||
Statement Reference Scer\GAL4Act5C.PI, Scer\GAL4Act5C.PI, diaCA.Scer\UAS.T:Ivir\HA1 is a non-suppressor of adherens junction | somatic clone phenotype of Rho172F Scer\GAL4Act5C.PI, Scer\GAL4Act5C.PI, diaCA.Scer\UAS.T:Ivir\HA1 is a non-suppressor of adherens junction | somatic clone phenotype of Rho172O | |||
Additional Comments
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Genetic Interactions
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Statement Reference Rho1[72F] clones expressing dia[CA.Scer\UAS.T:Ivir\HA1] still exhibit disrupted adherens junctions.
Rho1[72O] clones expressing dia[CA.Scer\UAS.T:Ivir\HA1] still exhibit disrupted adherens junctions. The cell shape changes that are seen in epidermal cells of embryos expressing dia[CA.Scer\UAS.T:Ivir\HA1] under the control of Scer\GAL4[en-e16E] are still seen in a zip[1] homozygous background.
The cell shape changes that are seen in amnioserosa cells of embryos expressing dia[CA.Scer\UAS.T:Ivir\HA1] under the control of Scer\GAL4[c381] are still seen in a zip[1] homozygous background. | |||
Xenogenetic Interactions
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Statement Reference | |||
Complementation & Rescue Data
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| Comments | |||
Stocks
( 1 ) | |||
| Bloomington | 27616 | ||
Notes on Origin
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| Discoverer | |||
External Crossreferences & Linkouts
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| Other Crossreferences | |||
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Synonyms & Secondary IDs
( 2 ) | |||
| Reported As | |||
| Symbol Synonym | diaCA.Scer\UAS.T:Ivir\HA1 DiaCA | ||
| Name Synonym | |||
| Secondary FlyBase IDs | |||
References
( 11 ) | |||
| Research paper |
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Recent Updates
External Crossreferences & Linkouts