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 memb...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences - PNAS 1995-08, Vol.92 (18), p.8154-8157
Main Authors: Loncar, D. (University of California, Davis, CA.), Singer, S.J
Format: Article
Language:English
Subjects:
Animals
Blastoderm
Blastoderm - cytology
Blastoderm - metabolism
Cell membranes
Cellular biology
DESARROLLO EMBRIONARIO
DEVELOPPEMENT EMBRYONNAIRE
Drosophila
DROSOPHILA MELANOGASTER
Drosophila melanogaster - cytology
Drosophila melanogaster - embryology
Drosophila melanogaster - metabolism
Embryos
ESTRUCTURA CELULAR
Fluorescent Antibody Technique
FOSFORILACION
Frozen sections
Insects
Membranes
NOYAU CELLULAIRE
Nuclear membrane
NUCLEO
P branes
Periplasm
PHOSPHORYLATION
PROTEINA QUINASA
PROTEINE KINASE
Proteins
STRUCTURE CELLULAIRE
TIROSINA
TYROSINE
Tyrosine - metabolism
Zygotes
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Summary: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 process
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.92.18.8154