Gene interactions: Interpeting gene expression data
Once gene expression data have been collected, it is
possible to identify clusters of genes that have similar
expression profiles, that is, are up- or downregulated
under the same experimental conditions. One then
conjectures that genes with similar expression profiles
have similar functions, for example, are involved in the
same biochemical pathways. Such conjectures can serve
as powerful guides for setting up experiments to confirm
the biochemical role of groups of genes.