Starting signal for antiviral defense
![](http://scimondo.org/wp-content/uploads/2014/07/Virus-DNA-Rad50-Card9-Komplex-200x150.jpg)
Protein identified as important trigger of antiviral response. Cells have to protect themselves: against damage in their genetic material for one thing, but also against attack from the outside, by viruses for example. They do this by using different mechanisms: special proteins search out and detect defects in the cell’s own DNA, while the immune system takes action against intruders. …