TABLE 2.
Identified SMs in porcine brain SM shown in Fig. 5
| Precursor (m/z) | Precursor Intensity (%) | Identified SMs | |||
| 675.505 | 0.15 | SM(d18:1,14:0) [90%] | |||
| 689.52 | 0.03 | SM(d17:1,16:0) [73%] | SM(d18:1,15:0) [27%] | ||
| 701.52 | 0.04 | SM(d18:2,16:0) [92%] | |||
| 703.535 | 2.68 | SM(d18:1,16:0) [79%] | SM(d16:1,18:0) [21%] | ||
| 717.55 | 0.29 | SM(d17:1,18:0) [46%] | SM(d18:1,17:0) [45%] | SM(d19:1, 16:0) [4%] | SM(d16:1,19:0) [3%] |
| 729.551 | 1.69 | SM(d18:2,18:0) [85%] | SM[d18:1,18:1(n-9)] [10%] | ||
| 731.539 | 40.77 | SM(d18:1,18:0) [94%] | |||
| 743.564 | 0.04 | SM(d19:2,18:0) [81%] | |||
| 759.589 | 6.56 | SM(d20:1,18:0) [52%] | SM(d18:1,20:0) [44%] | ||
| 771.595 | 0.03 | SM[d18:1,21:1(n-7)] [33%] | SM[d17:1,22:1(n-7)] [25%] | SM[d16:1,23:1(0-7)] [24%] | SM(d18:2,21:0) [11%] |
| 783.594 | 0.15 | SM[d18:1,22:2(n-6,-9)] [84%] | SM[d18:2,22:1(n-6)] [16%] | ||
| 785.604 | 4.82 | SM[d18:1,22:1(n-6)] [95%] | |||
| 787.616 | 5.45 | SM(d18:1,22:0) [83%] | SM[d18:0,22:1(n-6)] [11%] | ||
| 797.61 | 0.06 | SM(d18:1,23:2) [64%] | |||
| 799.622 | 1.52 | SM[d18:1,23:1(n-7)] [89%] | |||
| 801.635 | 1.26 | SM(d18:1,23:0) [83%] | SM(d18:0,23:1) [10%] | ||
| 809.607 | 0.06 | SM[d18:1,24:3(n-6,*,*)] [80%] | |||
| 811.622 | 1.55 | SM[d18:1,24:2(n-6,-9)] [82%] | SM[d18:2,24:1(n-9)] [10%] | SM[d18:2,24:1(n-6)] [4%] | |
| 813.605 | 29.99 | SM[d18:1,24:1(n-9)] [81%] | SM[d18:1,24:1(n-6)] [13%] | ||
| 825.636 | 0.11 | SM[d18:1,25:2(n-6,-9)] [75%] | |||
| 827.649 | 0.89 | SM(d18:1,25:1) [89%] | SM(d19:1,24:1) [11%] | (n-6) [17%], (n-9) [83%] | |
| 837.636 | 0.03 | SM[d18:1,26:3(n-6,*,*)] [51%] | SM(d18:1,26:3(n-9,*,*)) [38%] | ||
| 839.65 | 0.16 | SM[d18:1,26:2(n-6,-9)] [52%] | SM[d18:1,26:2(n-9,-12)] [17%] | SM[d20:2,24:1(n-9)] [9%] | SM[d20:2,24:1(n-6)] [6%] |
| 841.663 | 0.88 | SM(d18:1,26:1) [80%] | SM(d20:1,24:1) [14%] | (n-6) [31%], (n-9) [69%] | |
| 855.678 | 0.01 | SM(d20:1,25:1) [55%] | SM(d18:1,27:1) [32%] | SM(d19:1,26:1) [13%] | |
| 869.693 | 0.01 | SM(d18:1,28:1) [100%] | |||
| 871.69 | 0.03 | SM(d18:1,24:1) + 58.05 [100%] | |||
| 873.692 | 0.01 | SM(d18:2,24:1) + 58.05 [100%] | |||
| 887.471 | 0.01 | SM(d18:1,21:1) +101.11 [100%] | |||
| 914.744 | 0.01 | SM(d18:1,18:0) with CH3IO | SM(d18:1,24:1) + 101.11 | ||
| 943.523 | 0.04 | SM(d18:1,22:0) with CH3IO [100%] | |||
| 957.609 | 0.01 | SM(d18:1,23:0) with CH3IO [100%] | |||
| 971.551 | 0.19 | SM(d18:1,24:0) with CH3IO [100%] | |||
Precursor intensity [%] represents the amount of each precursor in the total lipids, which contains other impurities. Percent values following identified SMs show the relative intensities of acyl diagnostic peaks in the isobaric precursor ions. Total value in each precursor may not be 100% because of ignoring low intensity species. Underlined double bond locations in m/z 827 and 841 were not deconvoluted mathematically in each SM. Asterisks (*) represent unidentified double bond locations.