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Regulation Of Alpha 6 Beta 1 Integrin Laminin Receptor Function By The Cytoplasmic Domain Of The Alpha 6 Subunit, Leslie M. Shaw, Arthur M. Mercurio
Regulation Of Alpha 6 Beta 1 Integrin Laminin Receptor Function By The Cytoplasmic Domain Of The Alpha 6 Subunit, Leslie M. Shaw, Arthur M. Mercurio
Arthur M. Mercurio
The alpha 6 beta 1 integrin is expressed on the macrophage surface in an inactive state and requires cellular activation with PMA or cytokines to function as a laminin receptor (Shaw, L. M., J. M. Messier, and A. M. Mercurio. 1990. J. Cell Biol. 110:2167-2174). In the present study, the role of the alpha 6 subunit cytoplasmic domain in alpha 6 beta 1 integrin activation was examined. The use of P388D1 cells, an alpha 6-integrin deficient macrophage cell line, facilitated this analysis because expression of either the alpha 6A or alpha 6B subunit cDNAs restores their activation responsive laminin adhesion …