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. Author manuscript; available in PMC: 2014 Oct 30.
Published in final edited form as: J Proteomics. 2013 Mar 14;92:10.1016/j.jprot.2013.01.033. doi: 10.1016/j.jprot.2013.01.033

Table 5.

Comparison of modifications across all sample types. The following ten modifications were identified with statistically different frequencies in the non-pancreatitis verses chronic pancreatitis pancreatic fluid samples.


Frequency of modification per 1,000 potential modification sites

Modification PF Bile Urine GDF PaSC PaDC
Acetyl(N-term) 11.13 16.02 24.80 8.53 1.97 41.01
Carbamyl(N-term) 3.57 3.61 0.70 3.01 0.66 1.43
Cation:K(D) 1.67 1.07 0.11 0.00 0.74 0.18
Cation:Na(D) 0.37 0.10 0.11 0.84 0.25 0.00
Deamidated(Q) 127.29 101.69 23.89 66.24 17.60 14.50
Dehydrated(E) 0.35 0.00 0.06 1.94 0.00 0.00
Gln->pyro-Glu(N-term) 297.88 410.20 454.55 451.61 298.25 363.82
Nitro(W) 0.29 0.00 0.00 0.00 0.00 0.00
Oxidation(M) 589.72 264.02 391.73 870.37 714.29 844.93
Oxidation(P) 12.35 6.39 20.34 4.84 19.42 13.38

PF, pancreatic fluid; GDF, gastroduodenal fluid; PaSC, pancreatic stellate cells; PaDC, pancreatic duct cells.