Temperature sensitive mutant of bacteriophage T4...

Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives

Reexamination Certificate

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C536S023100, C435S252300

Reexamination Certificate

active

07148339

ABSTRACT:
The subject invention provides for a method of selectively cloning homoduplex nucleic acid molecules, in particular, by using a strain of host cells that contains a conditionally expressed and/or conditionally active mismatch-recognizing enzyme, e.g., a temperature sensitive variant of the gene encoding the endonuclease VII from phage T4. Using this host strain, the invention features a novel cloning method that selects for PCR products that are devoid of PCR-generated mutations.

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