NuPAGE SDS-PAGE system (Invitrogen) (4-12 % acrylamide, Bis-Tris with MES SDS Running Buffer) was used to resolve the samples, and they were stained with Gel Code Blue Stain (Thermo Scientific).
We also sought to confirm the identity of rhTyrRS by resolving the sample (s) in parallel with a reference standard by SDS-PAGE followed by western blotting using a polyclonal antibody.
Using these markers, hierarchical clustering was applied to the complete sample set (44 patients, 66 samples), and resolved the samples into epithelial and stromal clusters, including correct classification of the three outlier samples.
Due to the smaller number of resolving features (PDSs), it is not surprising that Wiki and IPA perform poorer in their ability to resolve the patient samples properly.
In contrast, if the top hit includes more than one unique species, the ITS2 sequence cannot be used to identify the sample, and additional DNA barcodes are needed to resolve the identity of the sample.
Figure 3C demonstrates that the ratio of fluorescent signals collected at 55°C and 40°C for each sample are less scattered and clearly resolves the homozygous samples and the heterozygous samples into statistically significant different sets of assays.
It is possible that we would have been able to resolve the 4 indeterminate samples had we retested these individuals 2 to 4 weeks later, following the manufacturer's guidelines; this resolution might possibly have improved the concordance for the Novagnost assay.
Detailed simulation studies to resolve the concerns relating to sample size, data structure, and degree of accuracy of the p-value are, however, called for.
In almost all cases, this proved to be necessary in order to resolve the complexity of biological samples.
Identification of intact proteins from tissue is difficult due to the often limited mass resolution which is insufficient to resolve the complexity of tissue samples.
