Figure 4.

(a) Representative confocal images of SMγ-actin in Acta2^−/− and WT cells plated on different extracellular matrices. Scale bar represents 20 µm. (b) Quantitative analysis of fluorescence images (n= 34–54 cells per condition). Data shown as mean ± SEM. Significance was evaluated at P < 0.05. *Significant difference between WT and Acta2^−/− cells for each matrix, $ Significant difference between WT cells, # Significant difference between Acta2^−/− cells as shown. (A color version of this figure is available in the online journal.)