Table 1: Summary of altered gene expression in mice infected with WT Y. pestis CO92, or its Δ lpp mutant, compared to uninfected control animals.

TissueControl versus WTWT versus Mutant
12 hours48 hours12 hours48 hours
UpDownUpDownUpDownUpDown

Number of Genes

Liver333996644156120136
Lung371016230109
Spleen444771916

A dash (“—") indicates that no gene expression differences were deemed as statistically significant (fold-change 1.5, 𝑃 value . 0 5 ). Note that 57% (109 out of 192) of WT Y. pestis-induced host transcriptional responses in the lungs of mice infected for 48 hours were perturbed in the absence of lpp.