Once we know the DE genes from our array data, we have all the genes that somehow play a role in the cell. In order to know more about this set of genes at a biological level, we need to know their biological role in terms of their function. Analyzing the GO categories in the set can do this. This recipe is about the enrichment of gene sets with GO terms.
The recipe explained here will require the gene set data that comes from our analysis and the annotation package indicated in the
ExpressionSet object (
Perform the following steps to describe the enrichment of genes with GO terms via a hypergeometric test: