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. 2013 Jul 4;9(7):e1003469. doi: 10.1371/journal.ppat.1003469

Figure 1. Cell surface plasmin acquisition in the absence of streptokinase.

Figure 1

A GAS strains 5448 (black fill), 5448Δska (no fill) and 5448* (grey fill) readily acquire cell surface plasmin activity during a 3 h incubation in human plasma, but not plasminogen-depleted plasma or PBS. B In the absence of streptokinase, uPA can mediate cell surface plasmin acquisition by GAS in vitro. Data is representative of 2 independent experiments. Error bars indicate SEM (n = 3), asterisks indicate statistical significance as determined by unpaired two-tailed students t-test P<0.005 (**), P<0.001 (***).