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Due to this mutation, protein C, an anticoagulant protein that normally inhibits the pro-clotting activity of factor V, is not able to bind normally to factor V, leading to a hypercoagulable state, i.e., an increased tendency for the patient to form abnormal and potentially harmful blood clots. [2] Factor V Leiden is the most common hereditary ...
14067 Ensembl ENSG00000198734 ENSMUSG00000026579 UniProt P12259 O88783 RefSeq (mRNA) NM_000130 NM_007976 RefSeq (protein) NP_000121 NP_032002 Location (UCSC) Chr 1: 169.51 – 169.59 Mb Chr 1: 163.98 – 164.05 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Coagulation factor V (Factor V), also less commonly known as proaccelerin or labile factor, is a protein involved in ...
Factor V Leiden is an inherited blood clotting disorder. It can cause life-threatening clots in the body and complications during pregnancy.
In those who are referred for thrombophilia testing, 30–50% have the defect. The prothrombin mutation occurs at rates of 1–4% in the general population, 5–10% of people with thrombosis, and 15% of people referred for thrombophilia testing. Like factor V Leiden, this abnormality is uncommon in Africans and Asians. [14]
This results in an increased risk of venous thrombosis (blood clots in veins), which resulting in medical conditions such as deep vein thrombosis (usually in the leg) and pulmonary embolism (in the lung, which can cause death). [1] The most common cause of hereditary APC resistance is factor V Leiden mutation.
Most people never develop a blood clot in their lifetimes. [1] It is due to a specific gene mutation in which a guanine is changed to an adenine at position 20210 of the DNA of the prothrombin gene. Other blood clotting pathway mutations that increase the risk of clots include factor V Leiden. Prothrombin G20210A was identified in the 1990s. [2]
A point mutation in the gene encoding factor V can lead to a hypercoagulability disorder called factor V Leiden. In factor V Leiden, a G1691A nucleotide replacement results in an R506Q amino acid mutation. Factor V Leiden increases the risk of venous thrombosis by two known mechanisms. First, activated protein C normally inactivates factor Va ...
[1] [5] This ratio is inversely related to the degree of APC resistance. [7] The ETP-based APC resistance test involves the addition of APC to a thrombin generation assay (TGA). [5] This results in an inhibition of thrombin generation as measured by reduction of the endogenous thrombin potential (ETP; area under the thrombin generation curve). [5]
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