Figure 2
Correlations between cluster features. Each cluster is represented as a point in each of the panels. Each panel shows the correlation between a pair of feature values. Known pyrrolysine gene clusters are marked with colors: mttB (red), mtbB (orange), mtmB (yellow), transposase1 (green), transposase2 (blue) and TetR (purple). Unknown clusters are white. Feature combinations with discriminatory potential display significant separation between the bulk of white clusters (the majority of which are false positives) and the colored clusters (true positives). A separation is apparent in panel 4.3 which shows the combination of the fcoding and fupstream features.