. . . . . . . "[These amyloid-beta peptide fragments are mainly generated by an enzymatic machinery referred to as gamma-secretase complex that is built up by the association of four distinct proteins, namely presenilin 1 (PS1) or PS2, nicastrin, Aph-1 and Pen-2.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:15:42+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .