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Factor IXa MeSH Descriptor Data 2022


MeSH Heading
Factor IXa
Tree Number(s)
D08.811.277.656.300.760.310
D08.811.277.656.959.350.310
D12.776.124.125.375.310
D23.119.375.310
Unique ID
D015949
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D015949
Scope Note
Activated form of factor IX. This activation can take place via the intrinsic pathway of blood coagulation by the action of factor XIa and calcium, or via the extrinsic pathway by the action of factor VIIa, thromboplastin, and calcium. Factor IXa serves to activate factor X to Xa by cleaving the arginyl-leucine peptide bond in factor X.
Entry Term(s)
Blood Coagulation Factor IX, Activated
Coagulation Factor IXa
Factor 9A
Factor IX, Activated
Factor Nine A
Registry Number
EC 3.4.21.22
Previous Indexing
Factor IX (1975-1989)
Serine Proteinases (1988-1989)
See Also
Coagulants
Public MeSH Note
90
History Note
90
Entry Combination
deficiency:Hemophilia B
Date Established
1990/01/01
Date of Entry
1989/07/14
Revision Date
2017/06/20
Factor IXa Preferred
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