Replication protein A and WAS protein partner to fix damaged DNA

DNA replication and repair happens thousands of times a day in the human body and most of the time, people don't notice when things go wrong thanks to the work of Replication protein A (RPA), the "guardian of the genome." ...

Study finds why many IVF embryos fail to develop

In humans, a fertilized egg is no guarantee of reproductive success. Most embryos stop developing and perish within days of fertilization, usually because they have an abnormal number of chromosomes. Now, researchers at Columbia ...

Study reveals how novel COVID manipulates cells to replicate

An article published in the journal Frontiers in Cellular and Infection Microbiology reports a study by researchers at the State University of Campinas (UNICAMP) and the University of São Paulo (USP) in Brazil showing how ...

Cryo-EM reveals how '911' molecule helps fix damaged DNA

When something goes wrong during DNA replication, cells call their own version of 911 to pause the process and fix the problem—a failsafe that is critical to maintaining health and staving off disease.

DNA replication under the microscope

Cryogenic electron microscopy (cryo-EM) has enabled researchers to study how the DNA replication machinery assembles at sites where DNA is damaged.

How cells defend against influenza A virus

Human cells use a protein named TBC1D5 to route influenza A viruses inside host cells for destruction, preventing the virus from spreading replicated copies of itself to other cells, according to a study published in Nature ...

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