The idea that a single-celled bacterium can defend itself against viruses in a similar way as the 1.8-trillion-cell human immune system is still “mind-blowing” for molecular biologist Joshua Modell of ...
When scientists discovered how bacteria protect themselves against viral invaders, called phages, in the early 2000s, little did they know they'd stumbled upon a revolutionary tool researchers could ...
The cryogenic electron microscope structure of the A4p-activated (green) CalpL protein filament (violet) from Candidatus Cloacimonas acidaminovorans (PDB ID: 9EYJ). CRISPR-Cas systems help to protect ...
The colonies of Escherichia coli sitting in this petri dish become pathogenic when they carry Shiga toxin genes. Credit: Shutterstock “We’re essentially converting a pathogenic strain into a ...
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