Figure 4

Chlamydia protein molecular weight frequency trends in BAL fluid. Chart A shows the overall molecular weight of proteins recognized by Chlamydia-specific IgE antibodies from patient BAL samples. These are for C. trachomatis and C. pneumoniae specific antibodies combined. The major outer membrane protein (MOMP) is recognized 61% of the time by these positive patient sera. However, chart B clearly shows that the MOMP from C. pneumoniae organisms were more likely to induce IgE antibodies than C. trachomatis MOMP (Chart C). The hypothetical 250KDa protein was the most frequently recognized C. trachomatis protein in BAL.