(Phys.org)—When is the plague not the plague? When it's a different strain of the same bacteria. In two strains of the bacteria genus Yersinia —a highly lethal pathogen and its less-virulent form—scientists performed ...
Cell & Microbiology
Jan 23, 2013
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A protein secreted by the chlamydia bug has a very unusual structure, according to scientists in the School of Medicine at The University of Texas Health Science Center San Antonio. The discovery of the protein's shape could ...
Biochemistry
Jun 11, 2013
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To infect its host, the respiratory pathogen Pseudomonas aeruginosa takes an ordinary protein usually involved in making other proteins and adds three small molecules to turn it into a key for gaining access to human cells. ...
Cell & Microbiology
May 7, 2013
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The fight against antibiotic-resistant superbugs has taken a step forward thanks to a new discovery by scientists at The University of Nottingham.
Cell & Microbiology
Aug 13, 2013
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(Phys.org) —A protein that acts as a chaperone and escorts pathogenic bacteria through the acid bath of the human stomach actually needs to lose its shape in order to work.
Cell & Microbiology
Mar 5, 2013
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Tuberculosis-causing mycobacteria use a select group of proteins known as virulence factors to transmit the disease, which infects roughly one third of the world's population and causes 1.7 million deaths annually. Those ...
Cell & Microbiology
Nov 27, 2017
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While working out the structure of a cell-killing protein produced by some strains of the bacterium Enterococcus faecalis, researchers stumbled on a bit of unusual biochemistry. They found that a single enzyme helps form ...
Biochemistry
Jan 22, 2013
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Macrophages destroy bacteria by engulfing them in intracellular compartments, which they then acidify to kill or neutralize the bacteria. However, some pathogenic bacteria, such as Salmonella enterica, have evolved to exist ...
Cell & Microbiology
Apr 14, 2015
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If you've ever suffered the misery of food poisoning from a bacterium like Shigella or Salmonella, then your cells have been on the receiving end of "nanoinjectors"—microscopic spikes made from proteins through which pathogens ...
Bio & Medicine
Mar 14, 2014
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(Phys.org) -- Strains of bacteria from the genus Yersinia are pathogenic with a wide virulence range -- Y. pseudotuberculosis causes intestinal distress, and Y. pestis causes the plague.
Cell & Microbiology
Apr 12, 2012
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