. . . . . . . "[We have characterized at the DNA and protein levels a mutant factor IX, factor IX Strasbourg 2, which is responsible for a severe form (< 0.01 U/ml) of haemophilia B.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-01-25"^^ . . "Gene-disease associations manually curated."@en . "DisGeNET evidence - CURATED"@en . "2017-10-17T13:12:37+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .