| Amino acid in position 3 | Observed masses, Da (Calculated mass Da, relative intensity) | |||
| The Z forma | The Ac-Z formb | The Met-Z formc | The Ac-Met-Z formd | |
| Gly | 7732.81 (7732.41, 100%) | 7775.47 (7774.45, 20%) | 7864.12 (7763.61, 15%) |
|
| Ala | 7747.00 (7746.44, 100%) | 7789.17 (7788.48, 40%) | 7878.14 (7877.64, 3%) |
|
| Pro |
| 7814.96 (7814.52, 7%) | 7904.21 (7903.67, 100%) | 7946.51 (7945.71, 21%) |
| Ser | 7762.98 (7762.44, 100%) | 7805.25 (7804.48, 40%) | 7894.07 (7893.64, 6%) |
|
| Thr | 7776.97 (7776.47, 100%) | 7819.25 (7818.50, 44%) |
|
|
| Cys | 7798.88 (7800.50, 71%)e | 7819.96 (7820.54, 100%) |
|
|
| Val | 7775.16 (7774.49, 3%) | 7816.87 (7816.53, 100%) |
|
|
| Leu | 7789.02 (7788.52, 39%) | 7831.14 (7830.56, 100%) | 7920.15 (7919.72, 5%) |
|
| Ile | 7789.03 (7788.52, 31%) | 7831.07 (7830.56, 100%) |
|
|
| Met | 7807.10 (7806.56, 10%) | 7849.08 (7848.60, 100%) |
|
|
| Asn | 7790.02 (7789.47, 33%) | 7832.07 (7831.50, 100%) | 7921.22 (7920.66, 11%) | 7963.72 (7962.70, 3%) |
| Asp | 7791.04 (3%) | 7832.86 (7832.49, 100%) |
|
|
| Gln | 7804.05 (7803.49, 100%) | 7846.19 (7845.53, 85%) | 7934.91 (7934.69, 4%) |
|
| Glu | 7804.99 (7804.48, 100%) | 7847.03 (7846.51, 94%) | 7936.17 (7935.67, 39%) |
|
| His | 7813.04 (7812.50, 82%) | 7855.17 (7854.54, 100%) |
|
|
| Lys | 7804.05 (7804.54, 100%) | 7846.95 (7845.57, 16%) |
|
|
| Arg | 7832.06 (7831.55, 100%) | 7874.88 (7873.59, 15%) | 7963.36 (7962.75, 5%) |
|
| Phe | 7823.06 (7822.54, 16%) | 7865.08 (7864.58, 100%) | 7953.87 (7953.73, 5%) | 7996.36 (7995.77, 9%) |
| Tyr | 7839.08 (7838.54, 100%) | 7881.23 (7780.57, 90%) | 7970.31 (7969.73, 10%) |
|
| Trp | 7862.10 (7861.57, 35%) | 7904.18 (7903.61, 100%) |
|
|