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    Cell. 1996 May 31;85(5):639-50.

    Drosophila photoreceptor axon guidance and targeting requires the dreadlocks SH2/SH3 adapter protein.

    Garrity PA, Rao Y, Salecker I, McGlade J, Pawson T, Zipursky SL.

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    Department of Biological Chemistry, Molecular Biology Institute, Howard Hughes Medical Institute, The School of Medicine, University of California, Los Angeles, California 90024, USA.

    Abstract

    SUMMARY: Mutations in the Drosophila gene dreadlocks (dock) disrupt photoreceptor cell (R cell) axon guidance and targeting. Genetic mosaic analysis and cell-type-specific expression of dock transgenes demonstrate dock is required in R cells for proper innervation. Dock protein contains one SH2 and three SH3 domains, implicating it in tyrosine kinase signaling, and is highly related to the human proto-oncogene Nck. Dock expression is detected in R cell growth cones in the target region. We propose Dock transmits signals in the growth cone in response to guidance and targeting cues. These findings provide an important step for dissection of signaling pathways regulating growth cone motility.

    PMID:
    8646773
    [PubMed - indexed for MEDLINE]

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