B-Raf proto-oncogene, serine/threonine kinase; BRAF1 BRAF-1; V600E; V600K; V600D; V600R; V600M; 7q34

  • Tech Only CPT
  • Tech Pro CPT 81210, 88381, G0452
  • PowerPath Code BRAF CRC (Colorectal), BRAF MELANOMA (Skin) BRAF other (Thyroid)
  • Schedule Weekly (Variable)
  • Turn Around Time 4-7 Days
  • Disease State Colon cancer, Melanoma
  • Methodology Real-time Polymerase Chain Reaction (qPCR)-based analysis of mutations in codon 600 of the BRAF gene

Specimen Requirements

Formalin-fixed, paraffin-embedded tissue blocks; fixed in 10% neutral-buffered formalin for at least 6 hours, and not more than 48 hours. Tissue should be prepared in sections between 4 and 6 microns thick.

Clinical Significance

Studies have shown that patients with advanced melanoma that harbor BRAF codon 600 mutations are likely to experience clinical benefit from kinase inhibitor drugs that target the mutant variants of the protein.

Required Patient Info

Clinical indication, copy of pathology report, and specimen source is required for the assay.

Storage and Transportation

Room temperature or refrigerated. Ship in cooled container during summer months.

Cause for Rejection

Tissue not verified for the presence of tumor and specimens fixed in fixatives other than formalin are not acceptable. Samples <5-10% tumor burden will not be tested, as false negative results cannot be ruled out. Surgical pathology report not included. Only specimens decalcified in EDTA will be accepted for molecular testing. Testing may be cancelled if a sufficient amount of DNA cannot be extracted.


2 years DNA and raw data, 10 years FFPE


Only tissue that is clearly invasive carcinoma (established by histopathologic criteria) should be tested. Selection of tissue for the PCR assay should be performed by a pathologist.

This test was developed and its performance characteristics determined by CellNetix Labs LLC. The U.S. Food and Drug Administration (FDA) has not approved or cleared this test. However, FDA approval or clearance is currently not required for clinical use of this test. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. CellNetix is authorized under Clinical Laboratory Improvement Amendments (CLIA) to perform high-complexity testing.