Figure 4.
Deletion of yycH and yycI reduces WalR phosphorylation. (a) Growth and WalR phosphorylation of S. aureus NRS384 walR-FLAG and NRS384 walR-FLAG ΔyycHI as determined by OD600 measurement of the cultures and WalR-FLAG detection by quantification of the phosphorylated and non-phosphorylated bands of the Phos-Tag Western blots. (b) Phos-Tag Western blot of S. aureus NRS384 walR-FLAG and NRS384 walR-FLAG ΔyycHI at different time points. In all samples, the phosphorylation of WalR was higher in the wild-type strain than in the yycHI deletion mutant. The experiment was performed three times and the figure shows a representative result.