Table 1.
Linear correlation analysis of metabolite abundances in the test cohort with MRIDSS and WCLS values of each CLN2 subject.
| Compound Name | Detection mode | Mass (Da) | RT (min) | p (CLN2 vs Control) | FC(CLN2 vs Control) | Correlation Analysis | METLIN DB match | |||
|---|---|---|---|---|---|---|---|---|---|---|
| MRIDSS | WCLS | |||||||||
| Pearson r2 | p-value | Pearson r2 | p-value | |||||||
| N-Acetyl-neuraminic Acid | ANPneg | 309.104 | 6.34 | 9.5E-04 | −2.21 | 0.2299 | 1.36-01 | 0.2838 | 9.2E-02 | N-Acetyl-neuraminic Acid |
| N-Acetyl-neuraminic Acid | ANPpos | 309.104 | 6.34 | 2.0E-03 | −2.26 | 0.2007 | 1.7E-01 | 0.2684 | 1.0E-01 | N-Acetyl-neuraminic Acid |
| Unknown 1 | ANPneg | 304.090 | 8.86 | 1.9E-04 | −2.39 | 0.6039 | 4.9E-03 | 0.4587 | 2.2E-02 | N-Acetylaspartyl-glutamic Acid |
| Unknown 1 | ANPpos | 304.090 | 8.86 | 1.8E-05 | −4.47 | 0.5909 | 5.7E-02 | 0.3944 | 3.9E-02 | N-Acetylaspartyl-glutamic Acid |
| Unknown 1 adduct | ANPneg | 402.059 | 8.84 | 9.0E-05 | −2.42 | 0.6104 | 4.5E-03 | 0.4871 | 1.7E-02 | N/A |
| Unknown 1 fragment | ANPneg | 286.084 | 8.84 | 4.3E-02 | −14.5 | 0.5243 | 2.7E-02 | 0.4420 | 0.5E-02 | N/A |
| Unknown 2 | ANPneg | 334.071 | 7.05 | 6.5E-02 | −5.39 | 0.5256 | 1.8E-02 | 0.5664 | 1.2E-02 | Glycero-3-phosphoinositol |
| Unknown 2 | ANPpos | 334.071 | 7.05 | 5.5E-02 | −6.66 | 0.5988 | 8.6E-03 | 0.6750 | 3.6E-03 | Glycero-3-phosphoinositol |
| Unknown 3 | ANPneg | 600.210 | 7.49 | 4.7E-05 | −2.83 | 0.3771 | 4.4E-02 | 0.5024 | 1.5E-02 | N/A |
| Unknown 4 | ANPneg | 95.988 | 5.84 | 1.0E-03 | −1.38 | 0.3469 | 5.6E-02 | 0.3443 | 0.56E-02 | Methane-sulfonic Acid |
| Unknown 5a | ANPneg | 131.056 | 4.64 | 2.5E-03 | −1.94 | 0.4235 | 3.0E-02 | 0.4012 | 3.6E-02 | C5H9NO3 |
| Unknown 6 | ANPpos | 733.544 | 7.69 | 1.2E-02 | −1.45 | 0.3817 | 4.3E-02 | 0.4987 | 1.5E-02 | N/A |
aMETLIN database search yielded a variety of possibilities for Unknown 5, e.g. aminolevulinic acid and cis/trans-4-hydroxyproline, which could be excluded by mismatching retention time to the in-house database entry. Formula matching of this metabolite is provided.
A Pearson correlation analysis was conducted with a two tailed p-value estimation.