Functional replacement of Drosophila Btk29A with human Btk in male genital development and survival

FEBS Lett. 2005 Aug 1;579(19):4131-7. doi: 10.1016/j.febslet.2005.06.042.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Agammaglobulinaemia Tyrosine Kinase
  • Animals
  • Blotting, Western
  • Drosophila / genetics*
  • Genitalia, Male / embryology*
  • Humans
  • Male
  • Mutation
  • Phenotype
  • Protein-Tyrosine Kinases / genetics
  • Protein-Tyrosine Kinases / physiology*
  • Transgenes

Substances

  • Protein-Tyrosine Kinases
  • Agammaglobulinaemia Tyrosine Kinase
  • BTK protein, human