It all has to do with the flagella.
“Bacteria push themselves forward by coiling long, threadlike appendages into corkscrew shapes that act as makeshift propellers. But how exactly they do this has baffled scientists, because the “propellers” are made of a single protein,” stated the scientists in their press release.So, the researchers used cryo-EM and advanced computer modeling to reveal what no traditional light microscope could: how these bacteria move at the level of individual atoms.
Bacteria have one or many appendages known as a flagellum to push them forward, shaped like rotating, corkscrew-like propellers. Scientists refer to the formation of their shape as “supercoiling” but have been long perplexed by how bacteria do it since the flagellum consists only of proteins.The researchers, however, now uncovered that these proteins can exist in 11 different states that can lead to several interesting forms.
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