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Fig. 3. Reciprocal expression of paxillin {delta} and Hic-5 in cell lines of epithelial and fibroblast origin. Western blots were performed on total cell lysates and probed with paxillin-specific PXC10 and Hic-5 antibodies. {alpha}-actinin expression was used as a measure of equivalent protein loading. Paxillin {delta} expression was restricted to cells exhibiting an epithelial phenotype (lanes 5-7) whereas Hic-5 expression was restricted to cells exhibiting a mesenchymal/fibroblastic phenotype (lanes 1-4). Paxillin {alpha} was expressed in all cell types examined.





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