DNA sequencing, mapping, and diagnostic processes using hybridization and stable isotope labels of DNA

摘要

A DNA sequencing, mapping, and diagnostic process which includes the steps of labeling nucleotide segments or peptide nucleic acids (PNAs) with one or more atoms of specific stable or long-lived radioactive isotopes of a selected element that do not normally occur in DNAs, ODNs or PNAs such that the nucleotide segment or PNA has specific stable or long-lived radioactive isotope of a specified selected element at a terminal or an interior position; hybridizing the labeled nucleotide segment or PNA to complementary nucleic acid segments or PNAs which are fixed on a hybridization surface; and, using mass spectrometric techniques, including RIS, to analyze the presence and position of the labeled hybridized nucleotide segments or PNAs which are bound to the fixed nucleotide segments or PNAs.