Fig. 2.

Heat map of the genes contributing most to the high enrichment score of the pain gene set for (A) gp120 + ddC and (B) SNT. Genes are ranked according to their expression under each experimental condition. For gp120 + ddC there is an association with upregulation, and thus the most differentially expressed genes are shown at the top of the heat map. For SNT there is an association with downregulation and thus the most differentially expressed genes are shown at the bottom of the heat map. Expression values are shown for each replicate within a condition and are represented as colours, where the range of colours (red, pink, light blue, dark blue) shows the range of expression values (high, moderate, low, and lowest).