Study shows how some bacteria withstand antibiotic onslaught

In a study with implications for chronic infections, Princeton researchers have described multiple pathways that some bacteria use to tolerate normally lethal antibiotic treatments. The findings overturn common assumptions ...

Histone degradation after DNA damage enhances repair

DNA damage can occur anywhere in the genome, but most DNA is wrapped around nucleosomes making it inaccessible to the repair machinery. Researchers from the Gasser group now show that DNA damage induces histone depletion, ...

New method knocks out yeast genes with single-point precision

How do you make yeast work harder? Not to make bread, but in processes that yield chemicals and pharmaceuticals. Industries currently use a yeast called Saccharomyces cerevisiae. They'd like it to work better. The answer ...

Molecular guardians monitor chromosomes during cell division

One of the worst things that can happen to a cell is to end up with the wrong number of chromosomes. This can happen if something goes wrong during cell division, and it can lead to infertility, miscarriages, birth defects, ...

Human stem cell defenses activated by irradiation, study finds

Researchers from several Russian institutes, including MIPT, have found out how prolonged exposure to ionizing radiation affects human stem cells. They discovered that it causes a cell cycle delay, which leads to faster repairs ...

How breaks in DNA are repaired

A team of researchers from the biology department at TU Darmstadt has discovered that the processes for repairing DNA damage are far more complex than previously assumed. The ends of breaks in the double helix are not just ...

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