Example of a gene expression cluster enriched for genes with roles in RNA polymerase nucleolus I activity (GO:0005730).

For brevity, only P. falciparum genes (15 of 28 total) are shown. The heading “InGO” indicates whether or not the gene was annotated as being part of the GO category and used to determine cluster boundaries. Yeast genes indicated with a § were matched by BLAST searching the P. falciparum or P. yoelii protein against the Saccharomyces cerevisiae translated genome and selecting the best scoring hit, a necessity as many of these genes are small. YLR101C is antisense to an essential gene and is considered “dubious.”