Table 1.
Extracting the copper oxidation state from mass peaks of the Aβ (1–28)-Cu(II) adduct
|
Aβ(1–28)-Cu |
Aβ-Cu(I) | Aβ-Cu(II) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Meas. m/z | Meas. Rel. Abund. (%) |
Calcd. m/z |
Calcd. Rel. Abund. (%) |
Dev. (ppm) |
Calcd. m/z |
Calcd. Rel. Abund. (%) |
Dev. (ppm) |
||
| 3+ Ion | A | 1108.145 | 15 | 1108.491 | 48 | 310 | 1108.155 | 48 | 9 |
| A+1 | 1108.475 | 77 | 1108.825 | 85 | 320 | 1108.489 | 85 | 13 | |
| A+2 | 1108.806 | 100 | 1109.159 | 100 | 320 | 1108.823 | 100 | 15 | |
| A+3 | 1109.139 | 75 | 1109.493 | 88 | 320 | 1109.157 | 88 | 16 | |
| A+4 | 1109.470 | 30 | 1109.827 | 61 | 320 | 1109.491 | 61 | 19 | |
| 4+ Ion | A | 831.387 | 36 | 831.620 | 48 | 280 | 831.368 | 48 | 23 |
| A+1 | 831.634 | 80 | 831.871 | 85 | 280 | 831.619 | 85 | 18 | |
| A+2 | 831.883 | 100 | 832.121 | 100 | 290 | 831.869 | 100 | 17 | |
| A+3 | 832.134 | 93 | 832.372 | 88 | 290 | 832.120 | 88 | 17 | |
| A+4 | 832.382 | 64 | 832.622 | 61 | 290 | 832.370 | 61 | 15 | |
| A+5 | 832.634 | 28 | 832.872 | 33 | 290 | 832.620 | 33 | 17 | |