Table 2.
ELA-32 fragments produced from loss of N-terminal amino acid residues.
| N-terminal metabolites | Length | Mass | ppm | m/z | charge | |
|---|---|---|---|---|---|---|
| ELA-32 | QRPVNLTMRRKLRKHNCLQRRCMPLHSRVPFP | 32 | 4096.2 | 0.8 | 513.03 | 8 |
| ELA-28(5-32) | NLTMRRKLRKHNCLQRRCMPLHSRVPFP | 5-32 | 3673.9 | −1.1 | 525.86 | 7 |
| ELA-23ͳ(9-32) | RKLRKHNCLQRRCMPLHSRVPFP | 9-32 | 3042.6 | 0.5 | 508.11 | 6 |
| ELA-22(10-32) | KLRKHNCLQRRCMPLHSRVPFP | 10-32 | 2845.5 | 2 | 475.26 | 6 |
| ELA-20(12-32) | RKHNCLQRRCMPLHSRVPFP | 12-32 | 2604.3 | 0 | 435.06 | 6 |
| ELA-19(13-32) | KHNCLQRRCMPLHSRVPFP | 13-32 | 2448.2 | 0.2 | 490.65 | 5 |
| ELA-18(14-32) | HNCLQRRCMPLHSRVPFP | 14-32 | 2320.1 | 0.8 | 465.03 | 5 |
| ELA-17(15-32) | NCLQRRCMPLHSRVPFP | 15-32 | 2183.1 | −0.2 | 437.62 | 5 |
| ELA-16(16-32) | CLQRRCMPLHSRVPFP | 16-32 | 2069.0 | 0.6 | 414.81 | 5 |
| ELA-11(21-32) | CMPLHSRVPFP | 21-32 | 1355.6 | 0.3 | 452.89 | 3 |
| ELA-9(23-32) | PLHSRVPFP | 23-32 | 1048.6 | 2.2 | 525.30 | 2 |
| ELA-8(24-32) | LHSRVPFP | 24-32 | 951.53 | 1.3 | 476.77 | 2 |
Mass, observed mass; ppm, parts per million (is a measure of mass accuracy); m/z, mass to charge ratio. The most important isoforms are shown in bold. ͳthis metabolite was low plasma but very high in tissue homogenate.