DETERMINATION OF METHYLATION STATUS OF POLYNUCLEOTIDES
First Claim
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1. A method of determining the methylation status of a nucleic acid, the method comprising:
- (a) reacting said nucleic acid with bisulfate;
(b) amplifying one or more segments said nucleic acid using at least one purified oligonucleotide primer pair to produce an amplification product; and
(c) determining the mass and/or base composition of said amplification product, thereby determining said methylation status of said nucleic acid.
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Abstract
The present invention provides compositions and methods for detecting the methylation status of a nucleic acid. In particular, the present invention provides a mass spectrometry-based method of determining DNA methylation status without sequencing.
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14 Claims
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1. A method of determining the methylation status of a nucleic acid, the method comprising:
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(a) reacting said nucleic acid with bisulfate; (b) amplifying one or more segments said nucleic acid using at least one purified oligonucleotide primer pair to produce an amplification product; and (c) determining the mass and/or base composition of said amplification product, thereby determining said methylation status of said nucleic acid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for determining the methylation status of a nucleic acid, the system comprising:
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(a) instrumentation for calculating a molecular mass of a nucleic acid molecule; and (b) a database comprising masses or base compositions of known bisulfate converted nucleic acid molecules. - View Dependent Claims (14)
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Specification