Repeats in Human DNA may Aggravate Autism Symptoms

Simons Foundation Autism Research Initiative
Date Published: 
April 21, 2014

Certain DNA repeats that increased exponentially during human evolution are directly related to the severity of autism symptoms, according to a preliminary study published in PLoS Genetics. The repeats each span 65 amino acids and are collectively referred to as DUF1220, for ‘domain of unknown function.’ There are six types of these repeats, each with a slightly different sequence and all of which diverged from a common ancestor.