title: Functional replacement of Drosophila Btk29A with human Btk in male genital development and survival.
abstract: Drosophila type 2 Btk29A reveals the highest homology to Btk among mammalian Tec kinases. In Btk29A(ficP) mutant males, the apodeme holding the penis split into two pieces. Human Btk rescued this phenotype in 39% of Btk29A(ficP) males, while the Drosophila transgenes did so in 90-100% of mutants. The Btk29A(ficP) mutation reduced adult longevity to 11% that of wild-type. This effect was counteracted by Drosophila type 2, yielding 76% of the wild-type lifespan. Human Btk extended the lifespan of Btk29A(ficP) mutants only to 20% that of wild-type. Thus human Btk can partially replace Drosophila Btk29A+ in male genital development and survival.
authors: Laboratory of Genetics, Waseda University, 2-7-5, Higashi-Fushimi, Nishi-Tokyo,Tokyo 202-0021, Japan.
authors: Noriko
authors: N
authors: Hamada
authors: Carl-Magnus
authors: CM
authors: Bäckesjö
authors: C I Edvard
authors: CI
authors: Smith
authors: Daisuke
authors: D
authors: Yamamoto
mesh_terms: D000077329:Agammaglobulinaemia Tyrosine Kinase; D000818:Animals; D015153:Blotting, Western; D004330:Drosophila / Q000235:genetics*; D005837:Genitalia, Male / Q000196:embryology*; D006801:Humans; D008297:Male; D009154:Mutation; D010641:Phenotype; D011505:Protein-Tyrosine Kinases / Q000235:genetics / Q000502:physiology*; D019076:Transgenes
chemical_list: D011505:Protein-Tyrosine Kinases; D000077329:Agammaglobulinaemia Tyrosine Kinase; C000625949:BTK protein, human