Fig. 2.
Effects of genetic variants on nmMLCK1 Y464 phosphorylation post S1P challenge. Human pulmonary microvascular ECs were transfected with EGFP-nmMLCK1 constructs with WT, S147P, or 3SNP. Then ECs were challenged with S1P (1 μM) for 2–15 min. Immunofluorescence assays were performed to visualize nmMLCK1 Y464 phosphorylation. Relative nmMLCK1 Y464 phosphorylation levels in ECs were quantified. n = 30. *P < 0.05 compared to unstimulated WT EGFP-nmMLCK1 (the first white bar). #P < 0.05 compared to WT EGFP-nmMLCK1 group at the same time point of S1P challenge (the white bar of each time point).