Table 4.
Peptide ratios suggested for estimation of decomposition time based on the intrinsic factors sex (female and male) and body mass (slim and medium/large); listed are the mass-to-charge ratios (m/z) and retention times (RT) of each peptide along with the amino acid sequence, protein or origin and the results of the linear regression (coefficient of determination (r2) and slope); [OX]: oxidation modification
| Feature ratio [m/z_RT] | Peptide ratio | Protein origin | r2 | Slope | |
|---|---|---|---|---|---|
| Female | 374.7219_30.6/900.9550_38.6 |
ALELFR/ GLSDGEWQLVLNVWGK |
Myoglobin | 0.5564 | − 0.0032 |
| 650.3148_25.8/900.9550_38.6 |
ELGFQG/ GLSDGEWQLVLNVWGK |
Myoglobin | 0.5206 | − 0.0031 | |
| Male | 379.8810_23.5/797.7348_39.9 |
QKYDITTLR/ ELWETLHQLEIDKFEFGEK |
Troponin T, fast skeletal muscle | 0.5644 | 0.0032 |
| 394.2364_18.9/585.2761_17.6 |
NTQAILK/ LQTESGEYSR |
Myosin-1 | 0.5465 | 0.0035 | |
| 509.7801_26.9/749.0445_30.0 |
DTLVSQLSR/ TEAGATVTVKDDQVFPMNPPK |
Myosin-1 | 0.5223 | − 0.0028 | |
| 556.2885_32.5/812.4450_35.1 |
TIFKDFYELEPHK/ VHINPNSLFDIQVK |
Glycogen phosphorylase muscle form | 0.6221 | − 0.0013 | |
| 577.2793_20.4/440.5622_21.7 |
LQTESGEFSR/ LTGAVM[OX]HYGNLK |
Myosin-2 | 0.5260 | − 0.0023 | |
| 577.2793_20.4/827.3936_32.7 | LQTESGEFSR/KLETDISQMQGEM[OX]EDILQEAR | Myosin-2 | 0.5233 | − 0.0038 | |
| 585.2761_17.6/759.8777_24.7 |
LQTESGEYSR/ IEDEQALGM[OX]QLQK |
Myosin-1 | 0.5042 | − 0.0033 | |
| 585.2761_17.6/821.4081_33.5 | LQTESGEYSR/KLETDISQIQGEM[OX]EDIIQEAR | Myosin-1 | 0.6312 | − 0.0050 | |
| 644.8354_19.5/827.3942_34.5 | IEAQNRPFDAK/KLETDISQM[OX]QGEMEDILQEAR | Myosin-2 | 0.6111 | − 0.0035 | |
| 787.4676_18.9/573.3061_27.8 |
NTQAILK/ ALEDQLSEIK |
Myosin-1 | 0.5184 | 0.0020 | |
| 787.4676_18.9/585.2761_17.6 |
NTQAILK/ LQTESGEYSR |
Myosin-1 | 0.5277 | 0.0036 | |
| 825.8991_32.2/827.3936_32.7 | MEIDDLASNVETVSK/KLETDISQMQGEM[OX]EDILQEAR | Myosin-2 | 0.5593 | − 0.0036 | |
| 849.8828_29.7/821.4081_33.5 | MEIDDLASNMETVSK/KLETDISQIQGEM[OX]EDIIQEAR | Myosin-1 | 0.5364 | − 0.0027 | |
| Slim | 356.6818_16.1/859.4289_45.4 |
YSESVK/ AISEELDNALNDITSL |
Tropomyosin beta chain | 0.5756 | 0.0038 |
| 714.3460_30.6/590.8140_27.6 |
TLYGFGG/ ISGLIYEETR |
Histone H4 | 0.5234 | − 0.0080 |