FB2026_02 , released June 18, 2026
Human Disease Model Report: cancer, epithelial, RPS6KA3-related
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General Information
Name
cancer, epithelial, RPS6KA3-related
FlyBase ID
FBhh0001290
Disease Ontology Term
Parent Disease
OMIM
Overview

This report is based upon experiments in Drosophila designed to identify genes involved in later stages of cancer development, including cellular acquisition of invasive behavior. The Drosophila gene S6kII was identified in this screen. Dmel\S6kII encodes a serine/threonine kinase that functions as a downstream effector and regulator of the MAP kinase pathway. Multiple genetic reagents including RNAi-targeting constructs, alleles caused by insertional mutagenesis, and a CRISPR/Cas9-mediated knockout mutation have been generated for S6kII.

Dmel\S6kII is orthologous to four genes in human, RPS6KA1, RPS6KA2 RPS6KA3 and RPS6KA6. A UAS construct of the wild-type human Hsap\RPS6KA3 gene has been introduced into flies, but has not been characterized. Using a breast cancer cell line, the effect of knockdown of RPS6KA3 was assessed; a significant increase in both invasion and migration was observed. The other orthologous RPS6KA human genes were not tested in this assay.

[updated Nov. 2020 by FlyBase; FBrf0222196]

Disease Summary Information
Disease Summary: cancer, epithelial, RPS6KA3-related
OMIM report
Human gene(s) implicated
Symptoms and phenotype
Genetics
Cellular phenotype and pathology
Molecular information

RPS6KA3 encodes a member of the RSK (ribosomal S6 kinase) family of serine/threonine kinases. This kinase contains 2 non-identical kinase catalytic domains and phosphorylates various substrates, including members of the mitogen-activated kinase (MAPK) signaling pathway; implicated in controlling cell growth and differentiation. [Gene Cards, RPS6KA3; 2020.11.28]

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: 4 human genes to 1 Drosophila gene.

Other mammalian ortholog(s) used
    D. melanogaster Gene Information (1)
    Gene Snapshot
    Ribosomal protein S6 kinase II (S6kII) encodes a protein that functions as a downstream effector and regulator of the MAP kinase pathway. It is involved in MAP kinase regulated developmental processes, organization of the neuromuscular junction and adult behavior including circadian rhythm and learning. [Date last reviewed: 2019-03-14]
    Gene Groups / Pathways
    Comments on ortholog(s)

    Moderate- to high-scoring ortholog of human RPS6KA1, RPS6KA2, RPS6KA3, and RPS6KA6 (1 Drosophila to 4 human). Dmel\S6kII shares 56-58% identity and 69-71% 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 (194 groups)
      protein-protein
      Interacting group
      Assay
      References
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      enzymatic study, western blot, anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      anti tag coimmunoprecipitation, Identification by mass spectrometry
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      Alleles Reported to Model Human Disease (Disease Ontology) (4 alleles)
      Models Based on Experimental Evidence ( 1 )
      Allele
      Disease
      Evidence
      References
      Modifiers Based on Experimental Evidence ( 3 )
      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
      amorphic allele - molecular evidence
      CRISPR/Cas9
      loss of function allele
      Delta2-3 transposase
      loss of function allele
      P-element activity
      References (3)