Table 1.
Mass values (m/z) for A2E, photooxidized A2E (+16 m/z) and photooxidation-induced cleavage products. Corresponding m/z values for A2E and two forms of tagged A2E: A2E-Br and A2E-Lys/Leu
| A2E[M]+ | A2E-Br[M]+ | A2E-Lys/Leu[M]+ | |
| m/z | 592 | 730/732 | 952 |
| oxidation (+16) | 608 | 746/748 | 968 |
| 624 | 762/764 | 984 | |
| 640 | 778/780 | 1000 | |
| 656 | 794/796 | 1016 | |
| 672 | 810/812 | 1032 | |
| 688 | 826/828 | 1048 | |
| 704 | 842/844 | 1064 | |
| 720 | 858/860 | 1080 | |
| 736 | 874/876 | 1096 | |
| photocleavage | 422 | 560/562 | 782 |
| 432 | 570/572 | 792 | |
| 438 | 576/578 | 798 | |
| 448 | 586/588 | 808 | |
| 464 | 602/604 | 824 | |
| 470 | 608/610 | 830 | |
| 488 | 626/628 | 848 | |
| 504 | 642/644 | 864 |