The «mild» classification means that symptoms did not interfere with usual functioning while a severe adverse event interferes significantly with a subject's basic daily functioning; for example, a broken finger. (sciencedaily.com)
As a result, the protein encoded by the affected gene has a patch, where only the building block glutamine can be found, disrupting that proteinâ $ ™ s usual functions in the body. (emoryhealthsciblog.com)
Although the function of the gene isn't fully established, it is thought to add sugars to proteins, which could alter the speed or specificity of their usual function. (newscientist.com)