rs9923231
rs9923231 is the common VKORC1 -1639G>A promoter variant used in warfarin dosing algorithms. On the GRCh38 forward strand it is C>T. Each T copy is linked to lower VKORC1 expression, progressively greater warfarin sensitivity, and a lower average dose requirement. It is one input alongside CYP2C9, clinical factors, and INR monitoring; it cannot determine a dose by itself.
Traits rs9923231 reads
Gene
Reference databases
How Biome reads this
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