Genetic variant protects against rash of autoimmune diseases
![illustration of DNA](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/11/ticker_genetic_sequencing_free.jpg?fit=860%2C460&ssl=1)
A study of genetic data from 36,000 people with autoimmune diseases shows that dialing down a protein's activity — but not knocking it completely out — may provide a new way to calm overactive immune systems without raising the risk of getting infections.
Darryl Leja/NHGRI