Pattern formation: the eggshell holds the cue.
Recent data indicate that Torsolike, a spatial cue for patterning terminal structures of a Drosophila embryo, is stably anchored in the fruitfly eggshell; an as yet unidentified factor is required for the high activity of Torsolike at the embryo termini.
LeMosy
Ellen K
EK
Department of Cellular Biology and Anatomy, Medical College of Georgia, 1459 Laney Walker Boulevard, CB2915, Augusta, GE 30901, USA. elemosy@mail.mcg.edu
D000818:Animals; D004330:Drosophila / Q000196:embryology*; D029721:Drosophila Proteins / Q000502:physiology*; D004625:Embryo, Nonmammalian; D018507:Gene Expression Regulation, Developmental; D008565:Membrane Proteins; D008958:Models, Molecular; D019908:Proto-Oncogene Proteins c-raf; D015398:Signal Transduction; D014817:Vitelline Membrane / Q000502:physiology*
D029721:Drosophila Proteins; D008565:Membrane Proteins; C454059:fs(1)N protein, Drosophila; C085211:tsl protein, Drosophila; D019908:Proto-Oncogene Proteins c-raf; C420924:Raf protein, Drosophila