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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Vinculin: a cytoskeletal target of the transforming protein of Rous sarcoma virus.

Vinculin, a protein associated with the cytoplasmic face of the focal adhesion plaques which anchor actin-containing microfilaments to the plasma membrane and attach a cell to the substratum, contains 8-fold more phosphotyrosine in cells transformed by Rous sarcoma virus than in uninfected cells. Because the transforming protein of RSV, p60src, is a protein kinase that modifies cellular proteins through the phosphorylation of tyrosine and because phosphotyrosine is a very rare modified amino acid, this result is a very rare modified amino acid, this result suggests that vinculin is a primary substrate of p60src. Only trace amounts of phosphotyrosine were detected in myosin heavy chains, alpha-actinin, filamin, and the intermediate filament protein vimentin. The modification of vinculin by p60src may be responsible in part for the disruption of the microfilament organization and for the changes in cell shape and adhesiveness which accompany transformation by Rous sarcoma virus.[1]

References

  1. Vinculin: a cytoskeletal target of the transforming protein of Rous sarcoma virus. Sefton, B.M., Hunter, T., Ball, E.H., Singer, S.J. Cell (1981) [Pubmed]
 
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