Related topics: host cell

How bacterial cell recognizes its own DNA

It may come as a bit of a surprise to learn that bacteria have an immune system - in their case to fight off invasive viruses called phages. And like any immune system - from single-celled to human - the first challenge of ...

Microbes scared to death by virus presence

The microbes could surrender to the harmless virus, but instead freeze in place, dormant, waiting for their potential predator to go away, according to a recent study in mBio.

Honey bees use multiple genetic pathways to fight infections

Honey bees use different sets of genes, regulated by two distinct mechanisms, to fight off viruses, bacteria and gut parasites, according to researchers at Penn State and the Georgia Institute of Technology.

Untangling DNA with a droplet of water, a pipet and a polymer

Researchers have long sought an efficient way to untangle DNA in order to study its structure - neatly unraveled and straightened out - under a microscope. Now, chemists and engineers at KU Leuven, in Belgium, have devised ...

Virus-cutting enzyme helps bacteria remember a threat

Bacteria may not have brains, but they do have memories, at least when it comes to viruses that attack them. Many bacteria have a molecular immune system which allows these microbes to capture and retain pieces of viral DNA ...

Crystallography scientists celebrate 500 protein structures

The Canadian Macromolecular Crystallography Facility (CMCF) has announced the successful solution of 500 protein structures using the Canadian Light Source. The 3-D structures of proteins can be determined using powerful ...

Designer viruses could be the new antibiotics

Bacterial infections remain a major threat to human and animal health. Worse still, the catalogue of useful antibiotics is shrinking as pathogens build up resistance to these drugs. There are few promising new drugs in the ...

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