| 
      *oxidation of tryptophan residue
        | Sequence range | [M+H]+ calcd | m/z (exp.) |  
        | 1    - 12 | 1551.63 | 1550.54 |  
        | 2    - 12 | 1420.59 | 1419.81 |  
        | 2    - 19 | 2367.04 | 2366.54 |  
        | 12    - 21 | 1380.70 | 1380.92 |  
        | 12    - 26 | 1867.98 | 1867.36 |  
        | 30    - 36 | 808.36 | 808.74 |  
        | 30    - 46 | 2146.01 | 2146.43 |  
        | 30    - 50 | 2621.18 | 2621.70 |  
        | 37    - 46 | 1372.67    * | 1372.70    * |  
        | 46    - 62 | 1890.96 | 1890.88 |  
        | 50    - 62 | 1458.79 | 1459.57 |  
        | 51    - 62 | 1359.73 | 1360.73 |  
        | 52    - 64 | 1464.75 | 1465.69 |  
        | 53    - 65 | 1480.78 | 1481.64 |  
        | 57    - 65 | 1041.56 | 1041.68 |  
        | 65    - 76 | 1303.59 | 1303.74 |  
        | 80    - 88 | 1008.53 | 1008.78 |  
        | 85    - 94 | 1168.68 | 1168.50 |  
        | 85    - 95 | 1239.72 | 1240.01 |  
        | 96    - 109 | 1437.74 | 1437.79 |  
        | 96    - 112 | 1793 | 1793.62 |  
        | 98    - 110 | 1366.71 | 1366.70 |  
        | 114    - 130 | 2044.97 | 2045.40 |  
        | 119    - 127 | 1137.63 | 1137.69 |  
        | 119    - 131 | 1718.78 | 1718.40 |  
        | 128    - 137 | 1319.63 | 1318.72 |  
        | 132    - 142 | 1309.65 | 1309.60 |  
        | 143    - 155 | 1449.79 | 1449.73 |  
        | 143    - 156 | 1596.86 | 1596.93 |  
        | 157    - 167 | 1287.58 | 1286.68 |  
        | 159    - 164 | 745.28 | 745.87 |  
        | 159    - 167 | 1087.47 | 1086.70 |  
        | 159    - 169 | 1299.62 | 1299.49 |  
        | 160    - 165 | 697.28 | 696.81 |  
        | 160    - 168 | 1053.48 | 1053.31 |  
        | 169    - 176 | 1001.58 | 1002.25 |  
        | 171    - 176 | 789.43 | 789.09 |  
        | 171    - 181 | 1282.63 | 1283.24 |  
        | 176    - 186 | 1208.65 | 1208.52 |  
        | 184    - 192 | 1118.61 | 1118.70 |  
        | 187    - 205 | 2106.01 | 2106.37 |  
        | 187    - 207 | 2310.10 | 2310.25 |  
        | 187    - 217 | 3214.48 | 3214.71 |  
        | 188    - 206 | 2139.99 | 2140.42 |  
        | 193    - 208 | 1712.81 | 1712.66 |  
        | 196    - 206 | 1152.55 | 1151.69 |  
        | 207    - 218 | 1127.49 | 1127.75 |  
        | 207    - 226 | 1840.80 | 1841.19 |  
        | 209    - 218 | 923.40 | 924.16 |  
        | 209    - 226 | 1636.71 | 1637.08 |  
        | 209    - 239 | 2890.26 | 2889.73 |  
        | 218    - 225 | 732.33 | 732.26 |  
        | 219    - 239 | 1985.88 | 1986.24 |  
        | 227    - 239 | 1272.57 | 1272.72 |  
        | 263    - 280 | 2002.87 | 2003.44 |  
        | 280    - 312 | 3100.35 | 3100.89 |  
        | 280    - 314 | 3342.47 | 3342.67 |  
        | 286    - 312 | 2482.06 | 2482.02 |  
        | 286    - 314 | 2724.18 | 2724.79 |  |