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. 2008 Aug 21;118(9):3208–3218. doi: 10.1172/JCI35424

Figure 3. FXII-dependent kallikrein generation by surfaces is modulated by cofactor proteins.

Figure 3

Surfaces were incubated for 5 minutes at 37°C with 3 different proteins, BSA (A), endostatin (B) and Fg (C) and analyzed for their ability to induce FXII-dependent kallikrein generation. It was found that addition of these proteins was required for FXII activation by kaolin, EA, and DXS-500k. All other possible combinations of the above proteins with surfaces gave the same results (Supplemental Figure 3). The values in the graphs represent the mean ± SEM of duplicate determinations performed within 1 representative experiment of at least 3.