RPS6KB1 and infection: In contrast, whilst P. gingivalis (NCTC11834) infection alone did not result in altered levels of p-p70-S6K1 (T389), infection in the presence of oxidative stress caused a 1.73-fold decrease at all timepoints investigated (Figure 5C), suggesting that the phosphorylation activity of mTORC1 is downregulated by infection during stress.