Table 4.
Changes of the detected amounts of amino acids after MeOH extraction in comparison with the amounts before MeOH extraction. An average experimental error of approximately 15% is estimated (see Supplementary Information, Table S1).
| TBDMS–Derivative | Decrease 1 |
|---|---|
| Alanine | + |
| Glycine | ++ |
| α-Aminobutyric Acid (AABA) | +++ |
| Valine | +++ |
| Leucine | +++ |
| Serine (2 TBDMS) | − |
| Proline | ++ |
| Oxoproline | + |
| Hydroxyproline (2 TBDMS) | ++ |
| Serine (3 TBDMS) | ++ |
| Threonine (3 TBDMS) | ++++ |
| Threonine (3 TBDMS) | ++++ |
| Phenylalanine | +++ |
| Aspartic Acid | +++ |
| Hydroxyproline (3 TBDMS) | +++ |
| Glutamic Acid | − |
| Ornithine | ++ |
| Lysine | ++ |
| Arginine | ++ |
| Histidine | +++ |
| Tyrosine | + |
| Tryptophan | + |
| 3-Monochlorotyrosine | – |
| Monobromohistidine | ++ |
| Monobromotyrosine | + |
| Dichlorotyrosine | – |
| 3-Monoiodotyrosine | – |
| Monobromo-Monochlorotyrosine | – |
| 3,5-Dibromotyrosine | – |
| Monochloro-Monoiodotyrosine | – |
| Monobromo-Monoiodotyrosine | – |
| 3,5-Diiodotyrosine | – |
1 ++++ very strong decrease (residual content of 0%–25%); +++ strong decrease (residual content of 26%–50%); ++ medium decrease (residual content of 51%–75%); + weak decrease (residual content of more than 75%); − no decrease (residual 100% ± 15%).