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. 2015 Sep 30;290(46):27767–27778. doi: 10.1074/jbc.M115.678144

TABLE 1.

Detailed information regarding observed and theoretical m/z values for the fragment ions detected in the MS/MS spectrum of (hcit-K) ASGPPVSELITK

Observed m/z Theoretical m/z Mass error Ion
Da
243.15 243.15 0.00 b2
248.16 248.16 0.00 y2
330.18 330.18 0.00 b3
361.25 361.24 0.01 y3
387.2 387.20 0.00 b4
474.33 474.33 0.00 y4
492.3 492.29 0.01 y9+2
520.81 520.80 0.01 y10+2
564.33 564.32 0.01 y11+2
599.85 599.84 0.01 y12+2
663.89 663.89 0.00 [M + 2H-CONH2]+ 2
676.39 676.38 0.01 [M + 2H-H2O]+ 2
690.41 690.40 0.01 y6
886.53 886.52 0.01 y8
896.45 896.45 0.00 b9
983.59 983.58 0.01 y9
1009.54 1009.53 0.01 b10
1040.61 1040.60 0.01 y10
1122.62 1122.62 0.00 b11
1127.64 1127.63 0.01 y11
1198.68 1198.67 0.01 y12
1223.68 1223.66 0.02 b12