Localized surface activity of torso, a receptor tyrosine kinase, specifies terminal body pattern in Drosophila.

The subdivision of the Drosophila body into distinct terminal and central domains depends on the torso (tor) protein, a putative receptor tyrosine kinase that is active at both ends of the early embryo. We show that the tor protein is uniformly expressed along the surface membrane of early embryos despite its localized activity at both poles. Further, we… CONTINUE READING