Fig. 3From: Targeted quantitation of CFTR protein expression in vivo using immunoprecipitation & parallel reaction monitoring tandem mass spectrometryComparison of peak intensities of four hCFTR peptides (AVQPLLLGR, STLLSAFLR, GQLLAVAGSTGAGK and LSLVPDSEQGEAILPR) generated by IP using protein G beads vs streptavidin magnetic beads. hCFTR protein (5 ng) spiked in mouse lung membrane protein extracts (50 mg lung tissue) was used as test sample. The data were processed by skyline softwareBack to article page