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BRAF

Function

Protein kinase involved in the transduction of mitogenic signals from the cell membrane to the nucleus (Probable). Phosphorylates MAP2K1, and thereby activates the MAP kinase signal transduction pathway (PubMed:21441910, PubMed:29433126). May play a role in the postsynaptic responses of hippocampal neurons (PubMed:1508179).

Involvement in disease

Defects in BRAF are found in a wide range of cancers.

Colorectal cancer

CRC

A complex disease characterized by malignant lesions arising from the inner wall of the large intestine (the colon) and the rectum. Genetic alterations are often associated with progression from premalignant lesion (adenoma) to invasive adenocarcinoma. Risk factors for cancer of the colon and rectum include colon polyps, long-standing ulcerative colitis, and genetic family history.

None

The disease may be caused by variants affecting the gene represented in this entry.

Lung cancer

LNCR

A common malignancy affecting tissues of the lung. The most common form of lung cancer is non-small cell lung cancer (NSCLC) that can be divided into 3 major histologic subtypes: squamous cell carcinoma, adenocarcinoma, and large cell lung cancer. NSCLC is often diagnosed at an advanced stage and has a poor prognosis.

None

The gene represented in this entry is involved in disease pathogenesis.

Familial non-Hodgkin lymphoma

NHL

Cancer that starts in cells of the lymph system, which is part of the body's immune system. NHLs can occur at any age and are often marked by enlarged lymph nodes, fever and weight loss.

None

The gene represented in this entry is involved in disease pathogenesis.

Cardiofaciocutaneous syndrome 1

CFC1

A multiple congenital anomaly disorder characterized by a distinctive facial appearance, heart defects and mental retardation. Heart defects include pulmonic stenosis, atrial septal defects and hypertrophic cardiomyopathy. Some affected individuals present with ectodermal abnormalities such as sparse, friable hair, hyperkeratotic skin lesions and a generalized ichthyosis-like condition. Typical facial features are similar to Noonan syndrome. They include high forehead with bitemporal constriction, hypoplastic supraorbital ridges, downslanting palpebral fissures, a depressed nasal bridge, and posteriorly angulated ears with prominent helices.

None

The disease is caused by variants affecting the gene represented in this entry.

Noonan syndrome 7

NS7

A form of Noonan syndrome, a disease characterized by short stature, facial dysmorphic features such as hypertelorism, a downward eyeslant and low-set posteriorly rotated ears, and a high incidence of congenital heart defects and hypertrophic cardiomyopathy. Other features can include a short neck with webbing or redundancy of skin, deafness, motor delay, variable intellectual deficits, multiple skeletal defects, cryptorchidism, and bleeding diathesis. Individuals with Noonan syndrome are at risk of juvenile myelomonocytic leukemia, a myeloproliferative disorder characterized by excessive production of myelomonocytic cells.

None

The disease is caused by variants affecting the gene represented in this entry.

LEOPARD syndrome 3

LPRD3

A disorder characterized by lentigines, electrocardiographic conduction abnormalities, ocular hypertelorism, pulmonic stenosis, abnormalities of genitalia, retardation of growth, and sensorineural deafness.

None

The disease is caused by variants affecting the gene represented in this entry.

A chromosomal aberration involving BRAF is found in pilocytic astrocytomas. A tandem duplication of 2 Mb at 7q34 leads to the expression of a KIAA1549-BRAF fusion protein with a constitutive kinase activity and inducing cell transformation.

Post-translational modifications

Phosphorylation at Ser-365 by SGK1 inhibits its activity.

Methylation at Arg-671 decreases stability and kinase activity.

Ubiquitinated by RNF149; which leads to proteasomal degradation. Polyubiquitinated at Lys-578 in response to EGF.

Sequence similarities

Belongs to the protein kinase superfamily. TKL Ser/Thr protein kinase family. RAF subfamily.

Tissue specificity

Brain and testis.

Cellular localization

  • Nucleus
  • Cytoplasm
  • Cell membrane
  • Colocalizes with RGS14 and RAF1 in both the cytoplasm and membranes.

Alternative names

  • Serine/threonine-protein kinase B-raf
  • Proto-oncogene B-Raf
  • p94
  • v-Raf murine sarcoma viral oncogene homolog B1
  • BRAF1
  • BRAF
  • RAFB1

Target type

Proteins

Primary research area

Oncology

Other research areas

  • Immuno-oncology

Molecular weight

84437Da