Alternative<i>BRAF</i>mutations in<i>BRAF</i>V600E-negative hairy cell leukaemias

Abstract excerpt

The BRAF V600E mutation in exon 15 is considered the disease-defining mutation in hairy cell leukaemia (HCL), but single HCL cases lacking this mutation have been described. In 24 HCL, as well as in 194 various mature B- and T-cell neoplasms, we extended the search for BRAF mutations to exon 11. Two V600E-negative HCL contained novel, potentially functionally relevant mutations in exon 11 (F468C and D449E), while...

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