BRAF mutation is found in several cancers including thyroid cancer, malignant melanoma, ovarian cancer, colorectal cancer. In case of thyroid cancer, there are over 40 different types of BRAF mutation. Of these mutations, the V600E mutation on exon 15, i.e. change of nucleotide from T to A in 1799th base that results in change from valine to glutamate in amino acids, is most important with over 90% of frequency. Especially, BRAF V600E mutation is detected with ca. 45% of frequency in papillary thyroid carcinoma and is considered a prognostic maker for thyroid cancer.
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PNAC-2001