FB2026_02 , released June 18, 2026
FB2026_02 , released June 18, 2026
Human Disease Model Report: cancer, multiple, BRAF-related
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General Information
Name
cancer, multiple, BRAF-related
FlyBase ID
FBhh0000960
Disease Ontology Term
Parent Disease
OMIM
Overview

The RAF genes encode serine/threonine-protein kinases that act as links between the membrane-associated RAS GTPases and the MAPK/ERK cascade. The RAS-RAF-MEK-ERK pathway impacts proliferation, differentiation, apoptosis, and oncogenic transformation; as might be expected, many of the genes in the pathway are implicated in the development of cancer. This report describes a fly model that uses a disease-implicated variant of the human BRAF gene. There are two additional RAF genes in human, ARAF and RAF1. In Drosophila, there is a single orthologous gene, Dmel\Raf, for which classical amorphic and hypomorphic mutations, RNAi-targeting constructs, and alleles caused by insertional mutagenesis have been generated.

Several UAS constructs of the human Hsap\BRAF carrying a specific disease-implicated variant have been introduced into flies. Variant(s) implicated in human disease tested (as transgenic human gene, BRAF): the V600E variant form has been introduced into flies. The V600E variant constitutively activates the kinase and has been found in many forms of cancer (see MIM:164757).

This disease model has been designed to facilitate assessment of pharmaceutical treatment options. The GAL4-UAS system is used to express the BRAF V600E variant form in a variety of tissues; useful and easily quantitated phenotypes include lethality, semi-lethality and a rough eye phenotype. Single drugs as well as a combined treatment have been assessed.

An analogous change introduced into the Dmel\Raf gene has also been studied. Variant(s) implicated in human disease (analogous mutation in fly gene): A572E in the fly Raf gene (corresponds to V600E in the human BRAF gene).

See also the human disease model report 'cancer, multiple, RAF1-related' (FBhh0000558). Hsap\BRAF has also been used in a fly model of Noonan syndrome 7 (FBhh0001344).

[updated May 2021 by FlyBase; FBrf0222196]

Disease Summary Information
Disease Summary: cancer, multiple, BRAF-related
OMIM report
Human gene(s) implicated
Symptoms and phenotype
Genetics
Cellular phenotype and pathology
Molecular information

Variation in the kinase domain of BRAF have been associated with various cancers. The most common BRAF variant, V600E, constitutively activates the kinase, and causes cell proliferation in the absence of growth factors that would normally be required. The V600E variant is detected in approximately 50% of melanomas. [Medgen, Vemurafenib response; 893721]

External links
Disease synonyms
Ortholog Information
Human gene(s) in FlyBase
Human gene (HGNC)
D. melanogaster ortholog (based on DIOPT)
Comments on ortholog(s)

Many to one: 3 human to 1 Drosophila. The three human genes are BRAF, RAF1, and ARAF.

Other mammalian ortholog(s) used
    D. melanogaster Gene Information (1)
    Gene Snapshot
    Raf oncogene (Raf) encodes a serine-threonine protein kinase that acts downstream of the product of Ras85D. It activates the MEK/ERK pathway to regulate cell proliferation, differentiation and survival downstream of receptor tyrosine kinases such as those encoded by tor, Egfr, and sev. [Date last reviewed: 2019-03-14]
    Cellular component (GO)
    Gene Groups / Pathways
    Comments on ortholog(s)

    High-scoring ortholog of human BRAF, ARAF, RAF1 (1 Drosophila to 3 human). Dmel\Raf shares 43-47% identity and 56-60% similarity with the human genes.

    Orthologs and Alignments from DRSC
    DIOPT - DRSC Integrative Ortholog Prediction Tool - Click the link below to search for orthologs in Humans
    Other Genes Used: Viral, Bacterial, Synthetic (0)
      Summary of Physical Interactions (90 groups)
      protein-protein
      Interacting group
      Assay
      References
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      pull down, anti tag western blot, anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, anti tag western blot, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      enzymatic study, autoradiography
      two hybrid, anti tag coimmunoprecipitation, western blot, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting, anti tag western blot, two hybrid
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting, anti tag western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting, anti tag western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting, anti tag western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, anti tag western blot, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, anti tag western blot, two hybrid
      two hybrid, anti tag coimmunoprecipitation, anti tag western blot, pull down
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      Alleles Reported to Model Human Disease (Disease Ontology) (14 alleles)
      Models Based on Experimental Evidence ( 5 )
      Modifiers Based on Experimental Evidence ( 10 )
      Allele
      Disease
      Interaction
      References
      model of  cancer
      is ameliorated by Atg1HMS02750
      is ameliorated by slifUY681
      is exacerbated by Atg1016h
      is ameliorated by Atg16MI00187
      is ameliorated by Atg5HMS01244
      is ameliorated by Atg6HMS01483
      is ameliorated by BalatHMC06377
      is ameliorated by CarTHMC04919
      is ameliorated by CatUAS.cAa
      is ameliorated by bskHMS00777
      is ameliorated by bskK53R.UAS
      is ameliorated by slifHMC05846
      is ameliorated by sloJF02146
      is ameliorated by sloKO
      is exacerbated by sloUAS.cXa
      is ameliorated by sloHMC04093
      Models Based on Experimental Evidence ( 2 )
      Allele
      Disease
      Evidence
      References
      Modifiers Based on Experimental Evidence ( 0 )
      Allele
      Disease
      Interaction
      References
      Alleles Representing Disease-Implicated Variants
      Genetic Tools, Stocks and Reagents
      Sources of Stocks
      Contact lab of origin for a reagent not available from a public stock center.
      Bloomington Stock Center Disease Page
      Related mammalian, viral, bacterial, or synthetic transgenes
      Allele
      Transgene
      Publicly Available Stocks
      Selected Drosophila transgenes
      Allele
      Transgene
      Publicly Available Stocks
      RNAi constructs available
      Allele
      Transgene
      Publicly Available Stocks
      Selected Drosophila classical alleles
      Allele
      Allele class
      Mutagen
      Publicly Available Stocks
      loss of function allele
      ethyl methanesulfonate
      amorphic allele - genetic evidence
      nitrosomethyl urea
      loss of function allele
      amorphic allele - genetic evidence
      X ray
      amorphic allele - genetic evidence
      1,2-dichloroethane
      amorphic allele - genetic evidence
      spontaneous
      amorphic allele - genetic evidence
      ethyl methanesulfonate
      loss of function allele
      ethyl methanesulfonate
      hycanthon methanesulfonate
      amorphic allele - genetic evidence
      ethyl methanesulfonate
      amorphic allele - genetic evidence
      ethyl methanesulfonate
      amorphic allele - genetic evidence
      X ray
      amorphic allele - genetic evidence
      ethyl methanesulfonate
      References (6)