Altered thermostable DNA polymerases for sequencing


Ontology type: sgo:Patent     


Patent Info

DATE

N/A

AUTHORS

GELFAND, DAVID H. , KALMAN, LISA VIVIAN , MYERS, THOMAS W. , REICHERT, FRED LAWRENCE , SIGUA, CHRISTOPHER LIM

ABSTRACT

Modified thermostable DNA polymerases having enhanced efficiency for incorporating unconventional nucleotides such as those labeled with fluorescein family dyes are provided. Such modified thermostable DNA polymerases can be prepared by methods of the recombinant DNA technology. Recombinant thermostable DNA polymerases prepared in accordance with the present invention are advantageous in many in vitro DNA synthesis applications, such as DNA sequencing, synthesis of labeled DNA and the production of labeled primer extension products. The said polymerase enzymes are particularly useful in chain termination nucleic acid sequencing methods. Nucleic acids encoding the recombinant thermostable DNA polymerases of the present invention, as well as vectors and host cells comprising same are also provided. Kits comprising the recombinant thermostable DNA polymerases of the present invention are provided too. The polymerases and methods of the present invention provide significant cost and efficiency advantages for DNA sequencing. More... »

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