Multiplex Detection of Hotspot Mutations by Rolling Circle-Enabled Universal Microarrays

Autor: Gemma Tarafa, Todd Strugnell, Daniela Ladner, John H. Leamon, Stefan Hamann, Deborah A. Dillon, Jose Costa, Paul M. Lizardi
Rok vydání: 2001
Předmět:
Zdroj: Scopus-Elsevier
ISSN: 0023-6837
Popis: Detection of somatic low abundance mutations in early cancer development requires a discriminatory, specific, and high-throughput methodology. In this study we report specific, discriminatory detection of low abundance mutations through a novel combination of rolling circle amplification (Nat Genet 1998; 19:225-232) and PCR ligation detection reaction on a universal oligonucleotide microarray (J Mol Biol 1999; 292:251-262). After mutation-specific multiplex ligation and hybridization of 17 pairs of probes to a generic microarray, the ligated probes were visualized. The multiplex mutation-specific ligation is possible only because rolling circle amplification permits quantification of previously undetectable hybridization events conducive to the detection of a single mutation from within a pool of over 100 wild-type alleles. This system is readily adaptable to high-throughput automation using a robot such as the Biomek platform.
Databáze: OpenAIRE