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. 2004 Jan;72(1):94–105. doi: 10.1128/IAI.72.1.94-105.2004

FIG. 5.

FIG. 5.

Acquisition of plasminogen from human plasma by streptococcal strains D471-M6, D471-M6-SEN-K434-435L, and D471-M6-aad. (A) Immunochemical detection of plasminogen acquired from human plasma by streptococcal strains at different time points by Western blot analysis. (B) Proteolytic activity of streptococcus-bound plasminogen acquired from human plasma after reaction with Ska on the chromogenic substrate Val-Leu-Lys-paranitroanilide. Vertical bars represent the average of results from four or five samples ± the standard error of the mean. O.D., optical density.