Table 1.
Identification of characteristic products of RNase A digested tRNAphe in HeLa and HeLa/T cells
| Digestion products | Precursor ions (m/z) | a type ions | c type ions | w type ions | y type ions | ||||
|---|---|---|---|---|---|---|---|---|---|
| [Gm]AA[OHyW]AΨ | [M-3H]3−751.1259 | a1 | N.D | c1+H2O | 376.0658 | w1 | 402.9962 | y1 | 323.0271 |
| (HeLa Fragment) | [M-2H]2−1127.19146 | a2 | N.D | c2 | 687.1061 | w2 | 732.0464 | y2 | 652.0797 |
| Position 34–39 | a3 | N.D | c3 | 1016.1574 | w3 | N.D | y3-OHyW | 846.0765 | |
| a4-OHyW | 1130.1880 | c4-OHyW | 1210.1584 | w4 | N.D | y4 | N.D | ||
| a5 | N.D | c5 | N.D | w5 | N.D | y5 | N.D | ||
| [Gm]AA[imG-14]AΨ | [M-3H]3- 683.4321 | a1 | N.D | c1+H2O | 376.0650 | w1 | 402.9951 | y1 | 323.0288 |
| (HeLa/T Fragment-1) | [M-2H]2− 1025.6513 | a2 | N.D | c2 | 687.1054 | w2 | 732.0454 | y2 | 652.0791 |
| Position 34–39 | a3 | N.D | c3 | 1016.1587 | w3 | N.D | y3 | 1035.1394 | |
| a4-[imG-14] | 1130.1920 | c4 | 1400.2192 | w4 | N.D | y4 | N.D | ||
| a5 | N.D | c52− | 864.1325 | w5 | N.D | y5 | N.D | ||
| [Gm]AA[imG/imG2]AΨ | a1 | N.D | c1+H2O | 376.0665 | w1 | 402.9932 | y1 | 323.0273 | |
| (HeLa/T Fragment-2) | [M-3H]3- 688.1031 | a2 | N.D | c2 | 687.1060 | w2 | 732.0461 | y2 | 652.0808 |
| Position 34–39 | [M-2H]2− 1032.6588 | a3 | N.D | c3 | 1016.1593 | w3 | N.D | y3- imG/imG2 | 846.0762 |
| a4-imG | 1130.1880 | c4-imG/imG2 | 1210.1598 | w4 | N.D | y4 | N.D | ||
| a5 | N.D | c5 | N.D | w5 | N.D | y5 | N.D | ||
N.D: not detected