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Explore the impact of pH levels and PMSF on arginase (ARG) activity in polymorphonuclear (PMN) cell lysate. PMNs were lysed and incubated at varied pH levels with or without PMSF, followed by ARG activity measurement via spectrophotometry. Results from three experiments presented.
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Supplemental Figure 1. pH titration experiment on ARG activity in PMN lysate with or without PMSF. PMNs (106) were lysed by freezing and thawing. Cell lysate was incubated for two hours in 150 mM NaCl, 10 mM Tris/HCl, at the indicated pH, with (triangles) or without (squares) PMSF. Afterward, ARG activity was measured by spectrophotometry. Mean and 1SD of three experiments.