Src Mediates a Switch from Microtubule- to Actin-Based Motility of Vaccinia Virus

  • Timothy P. Newsome
    Cell Motility Laboratory, Room 529, Cancer Research UK, London Research Institute, Lincoln's Inn Fields Laboratories, 44 Lincoln's Inn Fields, London WC2A 3PX, UK.
  • Niki Scaplehorn
    Cell Motility Laboratory, Room 529, Cancer Research UK, London Research Institute, Lincoln's Inn Fields Laboratories, 44 Lincoln's Inn Fields, London WC2A 3PX, UK.
  • Michael Way
    Cell Motility Laboratory, Room 529, Cancer Research UK, London Research Institute, Lincoln's Inn Fields Laboratories, 44 Lincoln's Inn Fields, London WC2A 3PX, UK.

抄録

<jats:p>The cascade of events that leads to vaccinia-induced actin polymerization requires Src-dependent tyrosine phosphorylation of the viral membrane protein A36R. We found that a localized outside-in signaling cascade induced by the viral membrane protein B5R is required to potently activate Src and induce A36R phosphorylation at the plasma membrane. In addition, Src-mediated phosphorylation of A36R regulated the ability of virus particles to recruit and release conventional kinesin. Thus, Src activity regulates the transition between cytoplasmic microtubule transport and actin-based motility at the plasma membrane.</jats:p>

収録刊行物

  • Science

    Science 306 (5693), 124-129, 2004-10

    American Association for the Advancement of Science (AAAS)

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