Figure 5From: Transmembrane voltage regulates binding of annexin V and lactadherin to cells with exposed phosphatidylserineDepolarization increases the binding of lactadherin to apoptotic cells. Jurkat cells were prepared as described in the legend to Figure 2, and were then assayed with fluorescein-lactadherin in low-potassium A buffer (dashed lines) or depolarizing high-potassium B buffer (solid line). Assay in B buffer increased the mean fluorescence of the lactadherin-positive cell population by an average of 33 ± 2% compared to cells assayed in A buffer (mean ± SEM of three separate experiments). Horizontal lines indicate the gates used to define lactadherin-negative and lactadherin-positive cells.Back to article page