DNA cycle sequencing

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

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435 911, 435 912, 435 5, 424 941, 536 243, 536 2433, 536 2432, C12Q 168, C12Q 170, C12P 1934, A61K 3854

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057416400

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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