site-directed mutagenesis

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site-·di·rec·ted mu·ta·gen·e·sis

the controlled alterations of selected regions of a DNA molecule.
Farlex Partner Medical Dictionary © Farlex 2012

site-directed mutagenesis

An experimental technique in which a mutation is inserted in DNA at a particular site to determine the site’s function, if any. In site-directed mutagenesis, nucleotides are altered, resulting in substitution of amino acids in a protein of known function, which serves to identify the DNA sequence’s role (e.g., as a receptor or ion channel).
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
Michael Smith "for his fundamental contributions to the establishment of oligonucleotide-based, site-directed mutagenesis and its development for protein studies"
Libraries built on the BioXp System support a variety of downstream applications including gene engineering, gene modification, and site-directed mutagenesis studies.
Site-directed mutagenesis of porcine Nanog promoter sequences
In order to analyze the most common PTGS2 haplotypes, different PR and 3'-UTR variants were generated by site-directed mutagenesis using overlap extension PCR (14).
Using site-directed mutagenesis and the CRISPR-associated protein 9 (CRISPR/Cas9) system, they engineered DNA fragments carrying a variety of clinically important alterations, including the EGFR T790M, L858R and exon 19 deletion, KRAS G12D mutation, and more complex EML4-ALK rearrangements and mixed them with micrococcal nuclease-digested HEK293 cell-line DNA to obtain DNA samples with varying allelic fractions of mutant DNA.
In general, this has the advantage of being inexpensive and technically easy, since site-directed mutagenesis techniques are well-developed.
British-born Canadian biochemist Michael Smith, HFCIC, shared the 1993 Nobel Prize in Chemistry with American Kary Mullis for their work developing "site-directed mutagenesis," which allows researchers to introduce specific, engineered mutations into a DNA sequence.
Site-directed mutagenesis of different genes can provide important information about their functions.
Constructing Infectious HCV with Site-Directed Mutagenesis and Verifying Its Drug-Resistance.
Coupland, "Site-directed mutagenesis in Arabidopsis thaliana using dividing tissue-targeted RGEN of the CRISPR/Cas system to generate heritable null alleles," Planta, vol.
The mutant [18] putative binding site was generated using QuikChange site-directed mutagenesis kit (Figure 3(a)).

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