Fig. 3

Detection of differences in protein spot abundance between s-Cath and mini-BAL samples using 2D DIGE. The s-Cath and mini-BAL samples for each patient were labeled with different fluorescent dyes and run on a single gel. The protein spots in each sample were detected separately using the unique excitation/emission characteristics of the dyes (a and b). The differences in protein spot abundance were quantitated using an overlapping image (c). In the overlapping image, proteins spots with similar abundances between s-Cath and mBAL are yellow. Spots that are more abundant in s-Cath are green. Spots that are more abundant in mBAL are red