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Related Experiment Video

Updated: Jan 30, 2026

Mass Spectrometry Analysis to Identify Ubiquitylation of EYFP-tagged CENP-A EYFP-CENP-A
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SNP detection using trityl mass tags.

Klara R Birikh1, Pablo L Bernad, Vadim V Shmanai

  • 1Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya, Moscow, Russia.

Methods in Molecular Biology (Clifton, N.J.)
|September 22, 2009
PubMed
Summary
This summary is machine-generated.

A novel method for single nucleotide polymorphism (SNP) detection uses differential oligonucleotide probe extension and mass spectrometry. This technique enables efficient SNP genotyping with sulfur-linked, laser-cleavable labels on a single surface.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Analytical Chemistry

Background:

  • Single nucleotide polymorphisms (SNPs) are crucial genetic markers.
  • Accurate SNP detection is vital for genetic research and diagnostics.
  • Existing genotyping methods have limitations in efficiency and cost.

Purpose of the Study:

  • To develop a novel, efficient method for SNP detection.
  • To utilize mass spectrometry for high-throughput genotyping.
  • To demonstrate the utility of a new probe extension strategy.

Main Methods:

  • Development of a single nucleotide polymorphism (SNP) detection assay.
  • Incorporation of sulfur-linked, laser-cleavable trityl labels.
  • Application of mass spectrometry for analysis.
  • Utilizing a single surface for probe purification and desorption-ionization.

Main Results:

  • Successful implementation of differential oligonucleotide probe extension for SNP detection.
  • Demonstrated efficiency of sulfur-linked, laser-cleavable trityl labels.
  • Achieved matrix-independent desorption-ionization.
  • Validated the method's usefulness for SNP genotyping.

Conclusions:

  • The developed method offers a robust platform for SNP genotyping.
  • Mass spectrometry coupled with novel probe chemistry provides an efficient detection system.
  • This approach has potential applications in various genetic analyses.