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Russian microbiologists discovered «dark side» of nodulating bacteria

Researchers from the All-Russian Research Institute of Agricultural Microbiology in Sankt-Petersburg have defined which amyloid polypeptides could form nodulating (order Rhyzobiales) and related bacteria in large amounts. It has been turned out that the number of such polypeptides capable of doing damage to other organisms is quite substantial. Herewith, the most of them are located on the outer membrane of nodulating bacteria. The research article has been published in the journal Evolutionary Bioinformatics.
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Amyloid structures play an essential role in the life activity of various organisms. One of the most famous species is beta-amyloid, the accumulations of those evoke Alzheimer disease according to a popular viewpoint. Consequently, it is of high importance to study how amyloid fibrillae could form organisms with which a human often contact.

Nodulating bacteria are considered to be quite useful for agriculture. However, as one can see from the newest investigation, they also represent a potential source of pathogenic molecules — amyloid proteins.

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