For the K270R mutant, levels of IFN-β activation elicited by the 14-mer are comparable to those observed for the 10-mer; however, this mutant also exhibited no signaling when challenged by either the 30- or 50-mer hairpins.
Interestingly, the Sb2000.1-, MF200.5- or AMB1000.1-resistant mutants failed to produce ROS when challenged with the drug used for their selection, and there was also a significant lack of ROS production in these mutants upon challenge with any of the ROS-inducing drugs.
Thus in both experiments, we consistently observed that a higher number of mice survived when challenged with ΔpilB mutant as compared to WT strain after 24 h post-infection demonstrating the importance of PilB pilus of S. agalactiae NEM316 in the neonatal context.
Intriguingly, rx2-mutant cells display a striking phenotype when challenged with wild-type cells within the same niche.
The triple mutant also offered protection to immunized animals when challenged with native SEB (nSEB) [ 14– 16].
In addition, this mutant protein is insensitive to dimer disruption and inhibition when challenged with hydrogen peroxide (H2O2).
In contrast, the K270A mutant exhibits a significant loss in IFN-β activation (about twofold) when challenged by the 14-mer, and a complete loss in signaling when challenged by a 30- or 50-mer RNA.
When challenged with P. cinnamomi the sgt1b- 1 mutant showed no significant (P > 0.05) difference to its parental background Col-0, suggesting that SGT1B contributes a redundant role to resistance to P. cinnamomi.
Consistent with a significant role for 14-3-3 14-3-3 14-3-3 and AMP secretinn, Drosophila 14-3-3ε mutants exocytosisandompromised innAMP immune resecretionxhibiting Drosophilaly 14-3-3ε 14-3-3ε 14-3-3εhallenged by acute bacterial infection with either Gramutantsram- bactexhibited
The bba64 mutant was unable to infect the MyD88-deficient or C57BL/6J background control mice when challenged by infected nymphs (Table 3).
