Bisulfite conversion of DNA
First Claim
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1. A method for bisulfite conversion of DNA, comprising reacting isolated genomic DNA with a bisulfite reagent, wherein the reaction is conducted at a temperature in the range of 0-80°
- C., and wherein the reaction temperature is increased at least once to a range of about 85-100°
C. for a duration of between about 15 seconds and 6 minutes during the course of the conversion.
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Abstract
The present invention provides an improved method for the bisulfite conversion of DNA, and facilitates the analysis of cytosine methylation of genomic DNA. Novel combinations of denaturing solvents, new reaction conditions and new purification methods provide surprisingly efficacious methods for bisulfite conversion of DNA relative to prior art methods. The converted DNA may subsequently be analyzed by many different methods.
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7 Claims
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1. A method for bisulfite conversion of DNA, comprising reacting isolated genomic DNA with a bisulfite reagent, wherein the reaction is conducted at a temperature in the range of 0-80°
- C., and wherein the reaction temperature is increased at least once to a range of about 85-100°
C. for a duration of between about 15 seconds and 6 minutes during the course of the conversion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- C., and wherein the reaction temperature is increased at least once to a range of about 85-100°
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