LC-MS/MS Identification of a Bromelain Peptide Biomarker from Ananas comosus Merr

Figure 2

Br protein quantitation. Data filtering limits were set at a protein probability ≥95%, peptide probability ≥95%, and a minimum peptide number of 5. Six proteins were quantitated with a 100% probability of match. FB1035 precursor (a), Cysteine proteinase precursor ANll (b), Ananain (c), Br inhibitor (d) FBSB jacalin-like lectin (e), and the FBSB precursor (f). The ion spectrum (g) is shown for the DYGAVNEVK peptide in the FB1035 precursor (box in A).

(a)

(b)

(c)

(d)

(e)

(f)

(g)