Scientists find unexpected proteins in bacteria motors

A team of scientists, co-led by Karen Ottemann, a professor of Microbiology and Environmental Toxicology, recently found three unexpected proteins while studying the motors that power the flagella of a species called Helicobacter pylori. The proteins, which are normally found in another type of appendage on a separate group of bacteria, seem to exert control over the motion of the flagella. These proteins, known as PilN, PilO, and PilM, had never been found associated with a flagella before.