Tyrosine phosphorylation accompanying the cellularization of the syncytial blastoderm of Drosophila.
At an early stage in embryogenesis, the Drosophila blastoderm is a syncytium in which approximately 6000 nuclei align under the plasma membrane. During the interphase of nuclear cycle 14, a wave of membrane formation descends from the blastoderm surface to enclose each nucleus in an intact cell membrane. We show by immunofluorescence microscopy that the membrane-formation process is closely accompanied in space and time by a wave of tyrosine phosphorylation, suggesting that one or more tyrosine kinases and phosphatases are active in the process.
Loncar
D
D
Department of Biology, University of California, San Diego, La Jolla 92093-0322, USA.
Singer
S J
SJ
D000818:Animals; D001756:Blastoderm / Q000166:cytology* / Q000378:metabolism; D004331:Drosophila melanogaster / Q000166:cytology / Q000196:embryology* / Q000378:metabolism; D005455:Fluorescent Antibody Technique; D010766:Phosphorylation; D014443:Tyrosine / Q000378:metabolism*
D014443:Tyrosine