DNA cycle sequencing
First Claim
1. A method for sequencing DNA, comprising the steps of:
- a) contacting a polynucleotide primer complementary to a region of said DNA to be sequenced, and said DNA to be sequenced, together in the presence of a DNA polymerase, and between one and three dNTPs at least one dNTP being labeled to allow extension of said primer by addition of one or more said dNTPs to said primer, to form an extended primer,b) dissociating said extended primer from said DNA,c) repeating steps a) and b) a plurality of times, andd) contacting said extended primer with said DNA to be sequenced in the presence of a DNA polymerase, four dNTPs and a chain terminating agent.
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Accused Products
Abstract
Method for sequencing DNA which includes the following steps: providing a polynucleotide primer complementary to a region of the DNA to be sequenced providing the DNA to be sequenced, and contacting that primer and DNA together in the presence of a DNA polymerase and between 1 and 3 dNTPs, at least one of the dNTPs being labeled. The primer and DNA are contacted under conditions which allow extension of the primer by addition of one or more of the dNTPs to the primer to form an extended primer. The primer and DNA are then dissociated, generally by heating, and the contacting and dissociating steps repeated a plurality of times (usually 10-200 times). Finally, the extended primer is contacted with the DNA in the presence of a DNA polymerase (which is generally the same polymerase as used in the initial labeling step) all four dNTPs and a chain terminating agent.
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Citations
18 Claims
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1. A method for sequencing DNA, comprising the steps of:
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a) contacting a polynucleotide primer complementary to a region of said DNA to be sequenced, and said DNA to be sequenced, together in the presence of a DNA polymerase, and between one and three dNTPs at least one dNTP being labeled to allow extension of said primer by addition of one or more said dNTPs to said primer, to form an extended primer, b) dissociating said extended primer from said DNA, c) repeating steps a) and b) a plurality of times, and d) contacting said extended primer with said DNA to be sequenced in the presence of a DNA polymerase, four dNTPs and a chain terminating agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification