. . . . . . . . . . . . "[Mutations of the SOD1 gene, encoding the enzyme copper/zinc superoxide dismutase, have been identified in around 20% of patients with familial amyotrophic lateral sclerosis (ALS), and also in patients with apparently sporadic ALS.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2016-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2016-05-13T12:43:50+02:00"^^ . . . . . . . . . . . "v4.0.0.0" . "v4.0.0" .