{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T01:47:20Z","timestamp":1791942440815,"version":"4.3.4"},"reference-count":40,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2021,5,6]],"date-time":"2021-05-06T00:00:00Z","timestamp":1620259200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Mega Project on Major Infectious Disease Prevention","award":["2018ZX10714002"],"award-info":[{"award-number":["2018ZX10714002"]}]},{"name":"National Natural Science Foundation of China","award":["81125012"],"award-info":[{"award-number":["81125012"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pathogens"],"abstract":"<jats:p>Three worldwide historical plague pandemics resulted in millions of deaths. Yersinia pestis, the etiologic agent of plague, is also a potential bioterrorist weapon. Simple, rapid, and specific detection of Y. pestis is important to prevent and control plague. However, the high similarity between Y. pestis and its sister species within the same genus makes detection work problematic. Here, the genome sequence from the Y. pestis CO92 strain was electronically separated into millions of fragments. These fragments were analyzed and compared with the genome sequences of 539 Y. pestis strains and 572 strains of 20 species within the Yersinia genus. Altogether, 97 Y. pestis-specific tags containing two or more single nucleotide polymorphism sites were screened out. These 97 tags efficiently distinguished Y. pestis from all other closely related species. We chose four of these tags to design a Cas12a-based detection system. PCR\u2013fluorescence methodology was used to test the specificity of these tags, and the results showed that the fluorescence intensity produced by Y. pestis was significantly higher than that of non-Y. pestis (p &lt; 0.0001). We then employed recombinase polymerase amplification and lateral flow dipsticks to visualize the results. Our newly developed plasmid-independent, species-specific library of tags completely and effectively screened chromosomal sequences. The detection limit of our four-tag Cas12a system reached picogram levels.<\/jats:p>","DOI":"10.3390\/pathogens10050562","type":"journal-article","created":{"date-parts":[[2021,5,6]],"date-time":"2021-05-06T11:10:27Z","timestamp":1620299427000},"page":"562","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Obtaining Specific Sequence Tags for Yersinia pestis and Visually Detecting Them Using the CRISPR-Cas12a System"],"prefix":"10.3390","volume":"10","author":[{"given":"Gang","family":"Chen","sequence":"first","affiliation":[{"name":"State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Biotechnology, 20 Dongdajie Street, Fengtai District, Beijng 100071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yufei","family":"Lyu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Biotechnology, 20 Dongdajie Street, Fengtai District, Beijng 100071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7077-1992","authenticated-orcid":false,"given":"Dongshu","family":"Wang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Biotechnology, 20 Dongdajie Street, Fengtai District, Beijng 100071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9975-8978","authenticated-orcid":false,"given":"Li","family":"Zhu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Biotechnology, 20 Dongdajie Street, Fengtai District, Beijng 100071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shiyang","family":"Cao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dongdajie Street, Fengtai District, Beijing 100071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chao","family":"Pan","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Biotechnology, 20 Dongdajie Street, Fengtai District, Beijng 100071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erling","family":"Feng","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Biotechnology, 20 Dongdajie Street, Fengtai District, Beijng 100071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weicai","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Biotechnology, 20 Dongdajie Street, Fengtai District, Beijng 100071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiankai","family":"Liu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Biotechnology, 20 Dongdajie Street, Fengtai District, Beijng 100071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yujun","family":"Cui","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dongdajie Street, Fengtai District, Beijing 100071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8476-4320","authenticated-orcid":false,"given":"Hengliang","family":"Wang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Biotechnology, 20 Dongdajie Street, Fengtai District, Beijng 100071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,5,6]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"225","DOI":"10.3201\/eid0802.010164","article-title":"Public health assessment of potential biological terrorism agents","volume":"8","author":"Rotz","year":"2002","journal-title":"Emerg. 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