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About: dbr:Factor_IX     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatPeripheralMembraneProteins, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: ThingBiomoleculegeneBiomoleculeGeneyago:Abstraction100002137yago:Chemical114806838yago:Compound114818238yago:Macromolecule114944888yago:Material114580897yago:Matter100020827yago:Molecule114682133yago:OrganicCompound114727670yago:Part113809207yago:PhysicalEntity100001930yago:Protein114728724yago:Relation100031921HumanGeneproteinyago:Substance100019613yago:Thing100002452yago:Unit109465459yago:WikicatPeripheralMembraneProteins New Facet based on Instances of this Class

Factor IX (or Christmas factor) (EC 3.4.21.22) is one of the serine proteases of the coagulation system; it belongs to peptidase family S1. Deficiency of this protein causes haemophilia B. It was discovered in 1952 after a young boy named Stephen Christmas was found to be lacking this exact factor, leading to haemophilia. Coagulation factor IX is on the World Health Organization's List of Essential Medicines.