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Target intelligence / Profile preview
Vitamin K-dependent clotting factors synthesis via phytomenadione (VKD clotting factor synthesis)
- Target
- VKD clotting factor synthesis
- Molecular classification
- Enzyme-mediated post-translational modification, Biochemical pathway
01
Overview
The synthesis of vitamin K-dependent clotting factors is a critical biochemical process in hemostasis, relying on the presence of phytomenadione (vitamin K1). This pathway enables the liver to produce several coagulation proteins essential for normal blood clotting. The process involves gamma-carboxylation of specific glutamate residues in Factors II, VII, IX, X, and Proteins C and S, which is strictly dependent on vitamin K1. Warfarin inhibits this pathway by blocking vitamin K epoxide reductase.
- Other names
- VKD factor biosynthesisGamma-carboxylation pathway
02
Mechanism of action
Gamma-carboxylation of glutamate residues in clotting factors; inhibition of vitamin K epoxide reductase
03
Biological functions
Blood coagulationRegulation of coagulation cascadeVitamin K metabolism
04
Disease associations
Bleeding disordersHemorrhagic disease of the newborn
05
Safety considerations
Bleeding risk (warfarin)Thrombotic risk (excessive vitamin K supplementation)Drug interactions (warfarin)
06
Interacting drugs
Warfarin
1 more in the full profile.
07
Biomarkers
PIVKA (Proteins Induced by Vitamin-K Absence)Levels of Factors II, VII, IX, X, Protein C, Protein S
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