Updated project metadata. The ubiquitin ligase Peli1 has previously been suggested as a potential treatment target in multiple sclerosis since the knock-out induced less activated microglia and less inflammation in the CNS of experimental autoimmune encephalomyelitis in mice. In the present study the brain proteomes of Peli1 knock-out mice and wild-type mice were analyzed and compared before disease induction and after 10 and 20 days of experimental autoimmune encephalomyelitis using quantitative proteomics. The brain samples were analyzed using TMT labeling of small pools of samples and verified using label-free of individual mice.