| Tryptic Peptide y2 Ion Table | ||||
| X | Lys | Arg | ||
| Gly | 204 | 232 | ||
| Ala | 218 | 246 | ||
| Ser | 234 | 262 | ||
| Pro | 244 | 272 | ||
| Val | 246 | 274 | ||
| Thr | 248 | 276 | ||
| Leu/Ile | 260 | 288 | ||
| Asn | 261 | 289 | ||
| Asp | 262 | 290 | ||
| Lys/Gln | 275 | 303 | ||
| Glu | 276 | 304 | ||
| Met | 278 | 306 | ||
| His | 284 | 312 | ||
| Phe | 294 | 322 | ||
| Arg | 303 | 331 | ||
| Cys* | 307 | 335 | ||
| Tyr | 310 | 338 | ||
| Try | 333 | 361 | ||
| *camcys | ||||