LABORATORY METHODS IN ENZYMOLOGY: DNA
|
2013年
/
529卷
关键词:
D O I:
10.1016/B978-0-12-418687-3.00019-7
中图分类号:
Q5 [生物化学];
学科分类号:
071010 ;
081704 ;
摘要:
Site-directed mutagenesis is a PCR-based method to mutate specified nucleotides of a sequence within a plasmid vector. This technique allows one to study the relative importance of a particular amino acid for protein structure and function. Typical mutations are designed to disrupt or map protein-protein interactions, mimic or block posttranslational modifications, or to silence enzymatic activity. Alternatively, noncoding changes are often used to generate rescue constructs that are resistant to knockdown via RNAi.