Fig. 5. (A) MS1 spectrum obtained for a solution containing (A) 2 µM of both Prn and PeM-19 Ab or (B) 2 µM of both ΔC-term and PeM-19 Ab in 250 mM ammonium acetate with 0.06% C10E5 detergent. The spectra on the right display the Gaussian fits for the deconvoluted mass spectra.