Table 4

Functional categories over-represented in clusters of genes similarly regulated by Hfe disruption in duodenum

Category
Term
n
EASE score

Cluster 1 (209 Affy IDs [177 genes])

No functional category overrepresented


Cluster 3 (141 Affy IDs [131 genes])
     GOTERM_BP
Defense response
21
1.6 × 10-7
     GOTERM_BP
Induction of apoptosis
6
1.7 × 10-3

Affymetrix probesets in the different k-means clusters shown in Additional data file 2 were compared with Affymetrix MG-430 2.0 probe sets for over-representation of gene categories, using the DAVID (Database for Annotation, Visualization, and Integrated Discovery) functional annotation tool. The Category column shows the original database/resource from which the terms originate. The Term column indicates enriched terms associated with the gene list. The n column indicates the number of genes involved in the term. The expression analysis systematic explorer (EASE) score is a modified Fisher exact P value [51]. BP, biological process; GO, Gene Ontology.

Coppin et al. Genome Biology 2007 8:R221   doi:10.1186/gb-2007-8-10-r221