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Improving CRISPR Genome Editing by Engineering Guide RNAs

Su Bin Moon, Do Yon Kim, Jeong-Heon Ko, Jin-Soo Kim, Yong-Sam Kim
Trends in Biotechnology 2019 March 4
CRISPR technology is a two-component gene editing system in which the effector protein induces genetic alterations with the aid of a gene targeting guide RNA. Guide RNA can be produced through chemical synthesis, in vitro transcription, or intracellular transcription. Guide RNAs can be engineered to have chemical modifications, alterations in the spacer length, sequence modifications, fusion of RNA or DNA components, and incorporation of deoxynucleotides. Engineered guide RNA can improve genome editing efficiency and target specificity, regulation of biological toxicity, sensitive and specific molecular imaging, multiplexing, and editing flexibility. Therefore, engineered guide RNA will enable more specific, efficient, and safe gene editing, ultimately improving the clinical benefits of gene therapy.


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