期刊
NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE
卷 18, 期 -, 页码 428-431出版社
ELSEVIER
DOI: 10.1016/j.nano.2019.03.006
关键词
CRISPR-Cas14; ssDNA; Genotyping; DETECTR; Molecular diagnostic
Recently Jennifer Doudna's group discovered the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-CRISPR associated protein 14 (Cas14), identified almost exclusively in a supeiphyltun of extremophile archaea. The newly discovered Cas14 possesses a single-stranded (ss)DNA targeting activity - despite being two times smaller than Cas9 - a capability that might confer a defense against viruses with ssDNA genomes. Furthermore, by combining the non-specific ssDNase cleavage activity of Cas14 with isothermal amplification method (DETECTR-Cas14), it can also be promisingly exploited for high-fidelity DNA single-nucleotide polymorphism genotyping, and potentially for detecting ssDNA viruses of undeniable clinical, ecological, and economic importance infecting hosts in all three domains of life. Thus, CRISPR-Cas14 might acquire an exponential expansion in the field of CRISPR diagnostic for infectious and noninfectious diseases. (C) 2019 Elsevier Inc. All rights reserved.
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