. . . . . . . . . . . . "[The cause of Ig class or subclass deficiencies has been unclear except for IgH gene deletions and a homozygous 1-base insertion (1793insG) in C gamma 2 exon 4 of IgG2 deficiency.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2015-02-27"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2015-08-25T14:45:29+02:00"^^ . . . . . . . . . . . "v3.0.0.0" . "v3.0.0" .