factor IX

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Related to Coagulation factor IXa: factor XI, Stuart factor

factor IX

n.
A protein substance in blood plasma that is essential for the clotting of blood. A deficiency of this factor is the cause of Christmas disease.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.factor IX - coagulation factor whose absence is associated with hemophilia B
clotting factor, coagulation factor - any of the factors in the blood whose actions are essential for blood coagulation
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References in periodicals archive ?
REG1 is a two-component system consisting of pegnivacogin, an anticoagulant aptamer specifically targeting coagulation Factor IXa, and its complementary oligonucleotide active control agent, anivamersen.
The coagulation factor IX precursor contains coagulation factor IXa light chain and heavy chain.