About Factor IX
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. Alternative splicing results in multiple transcript variants encoding different isoforms that may undergo similar proteolytic processing. [provided by RefSeq, Sep 2015]

About DyLight 550
DyLight™ 550 has an excitation peak at 562 nm and an emission peak at 576 nm and is spectrally similar to Alexa Fluor™ 546, Alexa Fluor™ 555, Cy3 and TRITC. DyLight™ 550 is most commonly used in flow cytometery and fluorescence microscopy applications.