Fig. 4.
Activation of FXIII 34Val and FXIII 34Leu by human -thrombin as analyzed by HPLC.
(A) FXIII (4.0 μmol/L) was incubated with increasing doses of thrombin for 1 hour at 37°C. (B) FXIII (4.0 μmol/L) was incubated with 0.5 U/mL thrombin at 37°C for increasing periods of time. Squares represent FXIII 34Val and circles represent FXIII 34Leu. Results shown for each experiment are mean values ± SD of 3 replicates. Release of the activation peptides was expressed as the ratio between the molar quantity of the peptides ([AP]) and molar quantity of the peptides at full activation ([AP]f).