Abstract:BackgroundThe recent CRISPR-Cas coupled with λ recombinase mediated genome recombineering has become a common laboratory practice to modify bacterial genomes. It requires supplying a template DNA or homolog arms for precise genome editing. However, it is often overlooked the process to generate the homolog arms which is a time-consuming, costly and inefficient step.ResultsIn this study, we first optimized CRISPR-Cas protocol in BL21 strain and successfully deleted 10 kb gene from the genome in one round of edi… Show more
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