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Mitochondrial localization and temporal expression of the Drosophila melanogaster DnaJ homologous tumor suppressor Tid50.

The Drosophila melanogaster tumor suppressor gene lethal(2)tumorous imaginal discs (tid) was identified as a homolog of all dnaJ-like genes known to date which have been well preserved in evolution. Homozygous D. melanogaster l(2)tid mutants l(2)tid1, l(2)tid2 and l(2)tid3 are characterized by neoplastic transformation of the adult integumental primordia, the imaginal discs, and the death at the time of puparium formation. The first part of this study is concerned with the identification and subcellular localization of the l(2)tid-encoded protein, Tid50. The second part examines its tissue specific expression during wild-type development and in tumorous imaginal discs. To specify the function(s) of the Tid50 protein polyclonal rabbit antibodies directed against various domains of it were generated and used for staining of Western blots and whole-mounts and paraffin sections of various tissues isolated from wild-type and mutant tumor-developing animals. To identify the mutational events leading in homozygous l(2)tid mutants to abnormal expression level of l(2)tid-encoded RNA and protein, the mutant gene was isolated from homozygous l(2)tid1 and l(2)tid2 animals and sequenced.[1]

References

  1. Mitochondrial localization and temporal expression of the Drosophila melanogaster DnaJ homologous tumor suppressor Tid50. Kurzik-Dumke, U., Debes, A., Kaymer, M., Dienes, P. Cell Stress Chaperones (1998) [Pubmed]
 
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