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We have developed a novel protocol for site-directed mutagenesis of double-stranded DNA. The procedure, termed SORS (named because it undergoes the sequential procedure of segmentation-overhang creating PCR-reannealing-splicing) mutagenesis, is exemplified by a substitution, a deletion, and an insertion of nucleotide(s) in target genes. The template DNA is PCR-amplified into two separate segments...
cDNAs of certain target genes are difficult to obtain by traditional reverse transcription. Herein we describe a novel method to synthesize cDNA based upon the use of the class IIS restriction enzymes. Briefly, the exons of a certain gene are separately PCR-amplified, each using the primers containing a recognition sequence of a certain class IIS restriction enzyme. All the fragments are restricted...
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