Processed databases
Atom-Mass pairs
Outputs for L-Methionine; LC-ESI-QQ; MS2; CE:40 V; [M+H]+
Database: Institute for Advanced Biosciences, Keio Univ.
Entry ID: KO003335
Synonyms: Met, L-2-Amino-4methylthiobutyric acid, L-Methionine
Total mass: 149.2109
Formula: H11 C5 S1 O2 N1
Experimental information
MS type: MS2
Instrument: API3000, Applied Biosystems
Instrument type: LC-ESI-QQ
Ionization mode: POSITIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks:
Replicated queried mass peaks: 40.7, 44.4, 44.9, 56.1, 57.1, 61.0, 70.6, 73.0, 73.9, 85.3, 86.0, 104.3,
Processing time: 0:00:02.231866
Results for the quried mass "38.8"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C3 | 0.256 | 3 | 0 | C2,C4,C5 |
| C3 | 0.256 | 3 | 0 | C2,C3,C4 |
| C2N1 | 0.236 | 1 | 0 | C2,C4,N6 |
| C2N1 | 0.236 | 1 | 0 | C4,C5,N6 |
| C2O1 | 0.213 | 1 | 0 | C4,C5,O7 |
| C2O1 | 0.213 | 1 | 0 | C4,C5,O8 |