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Western Blot

Entrez GeneID

GeneBank Accession#

Protein Accession#

Gene Name

F9

Gene Alias

FIX, HEMB, MGC129641, MGC129642, PTC

Gene Description

coagulation factor IX

Omim ID

Gene Ontology

Gene Summary

This gene encodes vitamin K-dependent coagulation factor IX that circulates in the blood as an inactive zymogen. This factor is converted to an active form by factor XIa, which excises the activation peptide and thus generates a heavy chain and a light chain held together by one or more disulfide bonds. The role of this activated factor IX in the blood coagulation cascade is to activate factor X to its active form through interactions with Ca+2 ions, membrane phospholipids, and factor VIII. Alterations of this gene, including point mutations, insertions and deletions, cause factor IX deficiency, which is a recessive X-linked disorder, also called hemophilia B or Christmas disease. [provided by RefSeq

Other Designations

Christmas factor|OTTHUMP00000024154|coagulant factor IX|factor 9|factor IX|plasma thromboplastic component