BioMed Research International / 2014 / Article / Tab 1 / Research Article
Feleucins: Novel Bombinin Precursor-Encoded Nonapeptide Amides from the Skin Secretion of Bombina variegata Table 1 Predicted b - and y -ion series (singly and doubly charged) arising from MS/MS fragmentation of (a) the novel bombinin, (b) feleucin-BV1, and (c) feleucin-BV2. Ions observed in actual MS/MS spectra are indicated in bold typeface.
(a) Number 1 b (1+)b (2+)Seq. y (1+)y (2+)Number 2 1 58.02875 29.51801 G 27 2 171.11282 86.06005 I 2560.50874 1280.75801 26 3 228.13429 114.57078 G 2447.42467 1224.21597 25 4 285.15576 143.08152 G 2390.40320 1195.70524 24 5 356.19288 178.60008 A 2333.38173 1167.19450 23 6 469.27695 235.14211 L 2262.34461 1131.67594 22 7 582.36102 291.68415 L 2149.26054 1075.13391 21 8 696.40395 348.70561 N 2036.17647 1018.59187 20 9 795.47237 398.23982 V 1922.13354 961.57041 19 10 852.49384 426.75056 G 1823.06512 912.03620 18 11 980.58881 490.79804 K 1766.04365 883.52546 17 12 1079.65723 540.33225 V 1637.94868 819.47798 16 13 1150.69435 575.85081 A 1538.88026 769.94377 15 14 1263.77842 632.39285 L 1467.84314 734.42521 14 15 1391.87339 696.44033 K 1354.75907 677.88317 13 16 1448.89486 724.95107 G 1226.66410 613.83569 12 17 1561.97893 781.49310 L 1169.64263 585.32495 11 18 1633.01605 817.01166 A 1056.55856 528.78292 10 19 1761.11102 881.05915 K 985.52144 493.26436 9 20 1818.13249 909.56988 G 857.42647 429.21687 8 21 1931.21656 966.11192 L 800.40500 400.70614 7 22 2002.25368 1001.63048 A 687.32093 344.16410 6 23 2131.29628 1066.15178 E 616.28381 308.64554 5 24 2268.35519 1134.68123 H 487.24121 244.12424 4 25 2415.42361 1208.21544 F 350.18230 175.59479 3 26 2486.46073 1243.73400 A 203.11388 102.06058 2 27 N-Amidated 132.07676 66.54202 1
(b) Number 1 b (1+)Seq. y (1+)Number 2 1 148.07570 F 9 2 261.15977 L 754.51859 8 3 318.18124 G 641.43452 7 4 431.26531 L 584.41305 6 5 544.34938 L 471.32898 5 6 601.37085 G 358.24491 4 7 658.39232 G 301.22344 3 8 771.47639 L 244.20197 2 9 L-Amidated 131.11790 1
(c) Number 1 b (1+)Seq. y (1+)Number 2 1 148.07570 F 9 2 261.15977 L 784.52915 8 3 318.18124 G 671.44508 7 4 431.26531 L 614.42361 6 5 544.34938 I 501.33954 5 6 601.37085 G 388.25547 4 7 688.40288 S 331.23400 3 8 801.48695 L 244.20197 2 9 L-Amidated 131.11790 1