. . . . . . . "[A deletion of a single base in codon 55 (exon 2) of the phenylalanine hydroxylase (PAH) gene has been identified by direct DNA sequencing of 94 phenylketonuria (PKU) chromosomes.]. 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 . "2017-10-17T13:15:10+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .