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SNP Detection Using Trityl Mass Tags

Klara R. Birikh, Pablo L. Bernad, Vadim V. Shmanai, Andrei D. Malakhov,Mikhail S. Shchepinov, and Vladimir A. Korshun

A new method suitable for single nucleotide polymorphism (SNP) detection using differential oligonucleotide probe extension has been developed. Sulfur-linked laser-cleavable trityl labels are implemented in this protocol. The method is based on mass spectrometry and utilizes a single surface for affinity purification of extended probes and matrix-independent desorption–ionization of the cleavable labels. The usefulness of this method for SNP genotyping is demonstrated.

Original text © Methods in Molecular Biology 578 (2009) p.345-361                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

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