Table 2. List of IRE1LD peptic peptides analysed by hydrogen-1H/2H-exchange mass spectrometry (HX-MS) containing the respective m/z values, charge (z) and sequence of each peptide.
Note that the N-terminal amide hydrogen of each peptic fragment exchanges too fast to be detectable with this method. Hence, the N-terminal residue was excluded from the data analysis.
| Residues | M/z | Z | Sequence |
|---|---|---|---|
| 24–36 | 631.345 | 2 | STSTVTLPETLL |
| 37–45 | 938.478 | 1 | FVSTLDGSL |
| 46–59 | 396.730 | 4 | HAVSKRTGSIKWTL |
| 77–85 | 927.435 | 1 | LPDPNDGSL |
| 86–106 | 779.087 | 3 | YTLGSKNNEGLTKLPFTIPEL |
| 96–106 | 636.380 | 2 | LTKLPFTIPEL |
| 107–119 | 1316.680 | 1 | VQASPSRSSDGIL |
| 120–128 | 390.199 | 3 | YMGKKQDIW |
| 130–134 | 735.424 | 1 | YVIDLL |
| 134–145 | 631.832 | 2 | LTGEKQQTLSSA |
| 147–157 | 1090.563 | 1 | ADSLSPSTSLL |
| 157–168 | 730.874 | 2 | LYLGRTEYTITM |
| 168–175 | 522.242 | 2 | MYDTKTRE |
| 176–183 | 535.772 | 2 | LRWNATYF |
| 186–195 | 1031.447 | 1 | AASLPEDDVD |
| 196–208 | 727.837 | 2 | YKMSHFVSNGDGL |
| 209–221 | 703.343 | 2 | VVTVDSESGDVLW |
| 221–232 | 697.856 | 2 | WIQNYASPVVAF |
| 233–240 | 1050.537 | 1 | YVWQREGL |
| 241–248 | 332.864 | 3 | RKVMHINV |
| 253–258 | 406.735 | 2 | LRYLTF |
| 280–287 | 444.28 | 2 | KSKLTPTL |
| 288–296 | 1017.525 | 1 | YVGKYSTSL |
| 297–302 | 655.273 | 1 | YASPSM |
| 303–316 | 474.268 | 3 | VHEGVAVVPRGSTL |
| 317–335 | 956.978 | 2 | PLLEGPQTDGVTIGDKGES |
| 343–360 | 534.307 | 4 | VKFDPGLKSKNKLNYLRN |
| 365–378 | 503.588 | 3 | IGHHETPLSASTKM |
| 379–404 | 516.606 | 6 | LERFPNNLPKHRENVIPADSEKKSFE |
| 410–424 | 810.376 | 2 | VDQTSENAPTTVSRD |
| 410–443 | 727.149 | 5 | VDQTSENAPTTVSRDVEEKPAHAPARPEAPVDSM |