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    Movements of myosin
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    Movements of myosin

    2324

    Inside the fertilized egg cell of a fruit fly, we see a type of myosin (related to the protein that helps muscles contract) made to glow by attaching a fluorescent protein. After fertilization, the myosin proteins are distributed relatively evenly near the surface of the embryo. The proteins temporarily vanish each time the cells' nuclei--initially buried deep in the cytoplasm--divide. When the multiplying nuclei move to the surface, they shift the myosin, producing darkened holes. The glowing myosin proteins then gather, contract, and start separating the nuclei into their own compartments.
    Public Note
    Internal Note
    Keywordsfluorescence
    SourceVictoria Foe, University of Washington
    Date2007-12-07 00:00:00
    Credit LineVictoria Foe, University of Washington
    Investigator
    Record TypePhotograph
    Topic Area(s);#Cells;#
    Previous UsesThis image and a video are featured in the February 22, 2005, issue of Biomedical Beat.
    StatusActive

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