In the gastrointestinal tract, smooth swimming facilitates invasion of intestinal epithelial cells by Salmonella Typhimurium. We found that the master regulator HilD coordinates these processes and that McpC, a chemotaxis protein, promotes straight swimming and optimal invasion.
We often witness what objectively look like strange occurrences without giving them much (if any!) importance—in most cases, because we heard about them so many times that we take such observations for granted. One of them is the co-existence of two alternative glycolytic pathways in E. coli ...
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