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An efficient one-step site-directed and site-saturation mutagenesis protocol

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Zheng, L.·2004·Nucleic Acids Research

Abstract

We have developed a new primer design method based on the QuickChange site-directed mutagenesis protocol, which significantly improves the PCR amplification efficiency. This design method minimizes primer dimerization and ensures the priority of primer-template annealing over primer self-pairing during the PCR. Several different multiple mutations (up to 7 bases) were successfully performed with this partial overlapping primer design in a variety of vectors ranging from 4 to 12 kb in length. In comparison, all attempts failed when using complete-overlapping primer pairs as recommended in the standard QuickChange protocol. Our protocol was further extended to site-saturation mutagenesis by introducing randomized codons. Our data indicated no specific sequence selection during library construction, with the randomized positions resulting in average occurrence of each base in each position. This method should be useful to facilitate the preparation of high-quality site saturation libraries.

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Metadata

Authors
Zheng, L.
Venue
Nucleic Acids Research
Published
2004-08-03
Volume
32
Issue
14
Pages
e115-e115
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W2144175569
Cited by
1,178
References
0
FWCI
4.37
Type
journal article
Language
en
Open access
green

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Zheng, L. (2004). An efficient one-step site-directed and site-saturation mutagenesis protocol. Nucleic Acids Research. https://doi.org/10.1093/nar/gnh110

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