Levels of α2AP in controls and MI patients. (A) Histograms of α2AP antigen levels and the distribution of the percentage of C-terminally cleaved α2AP in control individuals. (B) Error bar plots (means ± 95% CI) of total α2AP levels (I), C-terminally intact α2AP levels (II), and percentage of C-terminally cleaved α2AP (III) in patients and control individuals.