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F10

Function

Factor Xa is a vitamin K-dependent glycoprotein that converts prothrombin to thrombin in the presence of factor Va, calcium and phospholipid during blood clotting.

Involvement in disease

Factor X deficiency

FA10D

A hemorrhagic disease with variable presentation. Affected individuals can manifest prolonged nasal and mucosal hemorrhage, menorrhagia, hematuria, and occasionally hemarthrosis. Some patients do not have clinical bleeding diathesis.

None

The disease is caused by variants affecting the gene represented in this entry.

Post-translational modifications

The vitamin K-dependent, enzymatic carboxylation of some glutamate residues allows the modified protein to bind calcium.

N- and O-glycosylated. O-glycosylated with core 1 or possibly core 8 glycans.

The activation peptide is cleaved by factor IXa (in the intrinsic pathway), or by factor VIIa (in the extrinsic pathway).

The iron and 2-oxoglutarate dependent 3-hydroxylation of aspartate and asparagine is (R) stereospecific within EGF domains.

Sequence similarities

Belongs to the peptidase S1 family.

Tissue specificity

Plasma; synthesized in the liver.

Cellular localization

  • Secreted

Alternative names

  • Coagulation factor X
  • Stuart factor
  • Stuart-Prower factor
  • F10

Target type

Proteins

Molecular weight

54732Da