Figure 6

The O-GlcNAcylation site prediction result from OGlcNAcScan (shown is human ankyrin-1). The section at the bottom displays a ranked list of predicted O-GlcNAcylation sites (e.g., S1162 as the top one). The rank is based on the output value of the SVM classifier, which is converted into "Estimated Precision" and "Lift" scores (see help page linked from the top of the page for explanation). The estimated precision score is an estimated lower-bound of the precision (e.g., the score of 0.3910 indicates that at least 39.1% of sites assigned with the similar SVM output scores are O-GlcNAcylation sites), and the Lift score is an index of relative improvement through the classifier, which is calculated as the estimated precision divided by a constant value corresponding to the initial rate of positive sites (i.e., ~0.0123). All displayed potential sites are shown as red "S/T" in the sequence section (middle). Clicking on any predicted site, the residue will be highlighted in the sequence (arrow).