
Pathway analysis 913
FIGURE 28.5: The adherens junction pathway. Although the same receptor
INSR is also present in this pathway in the same position as it was in the
insulin pathway, its role here is not as impor tant sinc e it is only one of many
tyrosine kinas e receptors. A lack of INSR will not completely shut down this
pathway, as it would the insulin pathway. No ne of the existing ORA or FCS
approaches is able to take such information into consideration since they all
consider the pathways just sets of genes, disregarding their topology.