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Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation
07:15

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation

Published on: January 16, 2019

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RAS variant signalling

Stephanie P Mo1, Judy M Coulson1, Ian A Prior2

  • 1Division of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, U.K.

Biochemical Society Transactions
|October 6, 2018
PubMed

Insights

RAS proteins, crucial for cell signaling, are often mutated in cancer and RASopathies. Recent findings reveal how different RAS mutations impact normal and disease biology.

Area of Science:

  • Molecular biology
  • Genetics
  • Cellular biology

Background:

  • RAS proteins are small GTPases regulating critical cellular signaling networks.
  • Mutations in RAS genes are prevalent in various cancers and developmental disorders known as RASopathies.
  • Understanding RAS signaling is vital for comprehending normal cell function and disease pathogenesis.

Purpose of the Study:

  • To review recent findings on RAS biology.
  • To explore how different RAS isoforms and mutations contribute to normal cellular functions.
  • To elucidate the mechanisms underlying RAS-mediated diseases.

Main Methods:

  • Literature review of recent research on RAS proteins.
  • Analysis of studies investigating RAS isoform-specific functions.
  • Examination of research on the impact of various RAS mutations.

Main Results:

  • RAS isoforms exhibit distinct roles in cellular signaling.
  • Specific activating mutations in RAS proteins lead to differential effects on cell proliferation and survival.
  • Emerging mechanisms highlight how altered RAS signaling drives disease phenotypes.

Conclusions:

  • RAS protein function is isoform- and mutation-specific.
  • Differential RAS signaling underlies both normal development and diseases like cancer and RASopathies.
  • Further research into these mechanisms can inform therapeutic strategies.
Keywords:
RAScancercodonisoformsmutationsignalling

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