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Optimization of DNA shuffling for high fidelity recombination
Author(s) -
Huimin Zhao
Publication year - 1997
Publication title -
nucleic acids research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 9.008
H-Index - 537
eISSN - 1362-4954
pISSN - 0305-1048
DOI - 10.1093/nar/25.6.1307
Subject(s) - dna shuffling , biology , mutagenesis , in vitro recombination , genetics , dna , gene , shuffling , plasmid , homologous recombination , microbiology and biotechnology , restriction enzyme , mutation , directed evolution , molecular cloning , mutant , peptide sequence , computer science , programming language
A convenient 'DNA shuffling' protocol for random recombination of homologous genes in vitro with a very low rate of associated point mutagenesis (0.05%) is described. In addition, the mutagenesis rate can be controlled over a wide range by the inclusion of Mn2+or Mg2+during DNase I digestion, by choice of DNA polymerase used during gene reassembly as well as how the genes are prepared for shuffling (PCR amplification versus restriction enzyme digestion of plasmid DNA). These protocols should be useful for in vitro protein evolution, for DNA based computing and for structure-function studies of evolutionarily related genes.

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