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Gene

F2

F2 is a gene. This site has 36 published variants inside it and 2 near it, each from a published genetic study, joining it to 6 condition pages.

US drug labels that name F2 (2)

The FDA keeps a list of medicine labels that mention a gene. These are the ones that name F2. Where this site has a page on the medicine, the name links to it; otherwise it opens the label on DailyMed. A label naming a gene does not always mean a test or a dose change: for many it is one line about how the body clears the drug.

• Tamoxifen
• Avatrombopag

Source: FDA Table of Pharmacogenomic Biomarkers in Drug Labeling, current as of 12 August 2026.

Conditions it is linked to

• Blood Cell Counts
• Celiac Disease
• Monocyte Count
• Smoking Behaviour and Nicotine Dependence
• Total Body Bone Mineral Density
• Venous Thromboembolism

Variants inside F2 (36)

• rs1227147475 · Coagulation factor deficiency syndrome
• rs113164417 · Congenital prothrombin deficiency
• rs1183827513 · Congenital prothrombin deficiency
• rs1202167691 · Congenital prothrombin deficiency
• rs121918477 · Congenital prothrombin deficiency
• rs121918478 · Congenital prothrombin deficiency
• rs121918479 · Congenital prothrombin deficiency
• rs121918480 · Congenital prothrombin deficiency
• rs121918481 · Congenital prothrombin deficiency
• rs121918483 · Congenital prothrombin deficiency
• rs121918484 · Congenital prothrombin deficiency
• rs121918485 · Congenital prothrombin deficiency
• rs121918486 · Congenital prothrombin deficiency
• rs1310397756 · Congenital prothrombin deficiency
• rs1401703940 · Congenital prothrombin deficiency
• rs202003146 · Congenital prothrombin deficiency
• rs2064886777 · Congenital prothrombin deficiency
• rs2134532862 · Congenital prothrombin deficiency
• rs2134533215 · Congenital prothrombin deficiency
• rs2134537035 · Congenital prothrombin deficiency
• rs2502855781 · Congenital prothrombin deficiency
• rs747234596 · Congenital prothrombin deficiency
• rs762292061 · Congenital prothrombin deficiency
• rs771099379 · Congenital prothrombin deficiency
• rs775021214 · Congenital prothrombin deficiency
• rs121918482 · DYSPROTHROMBINEMIA PROTHROMBIN HIMI-II
• rs112619944 · F2 protein levels
• rs3136487 · Linoleic acid to total fatty acids percentage
• rs3136448 · Lymphocyte count
• rs3136508 · Monocyte count
• rs754231232 · Prolonged prothrombin time
• rs387907201 · Thrombophilia due to thrombin defect
• rs61884327 · Total body bone mineral density
• rs61884328 · Total body bone mineral density (age over 60)
• rs1799963 · Venous thromboembolism
• rs3136516 · Venous thromboembolism

Variants near F2 (2)

Positions outside the gene, filed under it because it is the closest. A variant near a gene does not always act through it.

• rs11038977 · Omega-6 fatty acids to total fatty acids percentage
• rs113001570 · Smoking behaviour (cigarettes smoked per day)

See F2 with everything it connects to on the Gene Knowledge Graph, or as data at /api/v1/genes/F2.

A gene page gathers published research; it is not a test result and not medical advice. If a gene matters to your health, talk to a doctor or a genetic counsellor.