NF-κB target genes in the host response to pathogens. Changes in the expression of 61 NF-κB target genes during the response of U937 cells to LPS and the response of macrophages to LPS and different bacterial species. The genes have previously been identified as regulated in response to pathogens (10, 11). Genes named in red have not previously been identified as NF-κB targets. Expression changes are shown over time (0–24 h) and are colored according to the scale shown to the left. EC, Escherichia coli; EHEC, Enterohemorrhagic Escherichia coli; ST, Salmonella typhi; STm, Salmonella typhimurium; SA, Staphylococcus aureus; LM, Listeria monocytogenes; MTB, Mycobacterium tuberculosis; MB, Mycobacterium bovis.