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Related Experiment Video

Updated: May 18, 2026

Detecting Somatic Genetic Alterations in Tumor Specimens by Exon Capture and Massively Parallel Sequencing
11:02

Detecting Somatic Genetic Alterations in Tumor Specimens by Exon Capture and Massively Parallel Sequencing

Published on: October 18, 2013

Sequence capture and massively parallel sequencing to detect mutations associated with malignant hyperthermia.

A H Schiemann1, E M Dürholt, N Pollock

  • 1Institute of Molecular BioSciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand. a.h.schiemann@massey.ac.nz

British Journal of Anaesthesia
|October 5, 2012
PubMed
Summary

Malignant hyperthermia (MH) is a serious genetic disorder. Next-generation sequencing identified RYR1 gene mutations in one MH patient, aiding diagnosis and highlighting the need for broader genetic screening.

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Wild-type Blocking PCR Combined with Direct Sequencing as a Highly Sensitive Method for Detection of Low-Frequency Somatic Mutations
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Wild-type Blocking PCR Combined with Direct Sequencing as a Highly Sensitive Method for Detection of Low-Frequency Somatic Mutations

Published on: March 29, 2017

Area of Science:

  • Genetics
  • Pharmacology
  • Molecular Biology

Background:

  • Malignant hyperthermia (MH) is a life-threatening pharmacogenetic disorder affecting skeletal muscle calcium regulation.
  • Susceptibility is linked to RYR1 and CACNA1S genes, but mutations are found in only 50-70% of patients.
  • A more effective screening tool is needed for MH diagnosis.

Purpose of the Study:

  • To investigate the genetic basis of MH in two patients using next-generation sequencing.
  • To identify novel causative mutations in genes related to muscle excitation-contraction coupling and calcium homeostasis.
  • To functionally validate identified RYR1 mutations.

Main Methods:

  • Genomic DNA capture and next-generation sequencing of 32 relevant genes.
  • Screening of two MH patients.
  • Functional characterization of RYR1 mutations using lymphoblastoid cell lines.

Main Results:

  • Two putative causative mutations in the RYR1 gene were identified in one patient.
  • Functional analysis confirmed the role of RYR1 variants in MH susceptibility.
  • No causative mutations were found in the screened genes for the second patient.

Conclusions:

  • Genomic DNA capture and next-generation sequencing are effective for identifying MH-causing mutations.
  • Whole exome sequencing may be required for patients with negative RYR1 and CACNA1S mutation screening.
  • This approach aids in diagnosing MH and understanding its genetic underpinnings.