{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:12:48Z","timestamp":1790727168992,"version":"4.1.0"},"reference-count":25,"publisher":"American Society for Microbiology","issue":"8","license":[{"start":{"date-parts":[[2017,8,1]],"date-time":"2017-08-01T00:00:00Z","timestamp":1501545600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"name":"The John Mung Program from Kyoto University, Japan"},{"DOI":"10.13039\/100008535","name":"Calgary Laboratory Services","doi-asserted-by":"publisher","award":["10006465"],"award-info":[{"award-number":["10006465"]}],"id":[{"id":"10.13039\/100008535","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Antimicrob Agents Chemother"],"published-print":{"date-parts":[[2017,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    <jats:named-content content-type=\"genus-species\">Escherichia coli<\/jats:named-content>\n                    sequence type 131 (ST131) is a pandemic clonal lineage that is responsible for the global increase in fluoroquinolone resistance and extended-spectrum-\u03b2-lactamase (ESBL) producers. The members of ST131 clade C, especially subclades C2 and C1-M27, are associated with ESBLs. We developed a multiplex conventional PCR assay with the ability to detect all ST131 clades (A, B, and C), as well as C subclades (C1-M27, C1-nM27 [C1-non-M27], and C2). To validate the assay, we used 80 ST131 global isolates that had been fully sequenced. We then used the assay to define the prevalence of each clade in two Japanese collections consisting of 460 ESBL-producing\n                    <jats:named-content content-type=\"genus-species\">E. coli<\/jats:named-content>\n                    ST131 (2001-12) and 329\n                    <jats:named-content content-type=\"genus-species\">E. coli<\/jats:named-content>\n                    isolates from extraintestinal sites (ExPEC) (2014). The assay correctly identified the different clades in all 80 global isolates: clades A (\n                    <jats:italic>n<\/jats:italic>\n                    = 12), B (\n                    <jats:italic>n<\/jats:italic>\n                    = 12), and C, including subclades C1-M27 (\n                    <jats:italic>n<\/jats:italic>\n                    = 16), C1-nM27 (\n                    <jats:italic>n<\/jats:italic>\n                    = 20), C2 (\n                    <jats:italic>n<\/jats:italic>\n                    = 17), and other C (\n                    <jats:italic>n<\/jats:italic>\n                    = 3). The assay also detected all 565 ST131 isolates in both collections without any false positives. Isolates from clades A (\n                    <jats:italic>n<\/jats:italic>\n                    = 54), B (\n                    <jats:italic>n<\/jats:italic>\n                    = 23), and C (\n                    <jats:italic>n<\/jats:italic>\n                    = 483) corresponded to the O serotypes and the\n                    <jats:italic>fimH<\/jats:italic>\n                    types of O16-H41, O25b-H22, and O25b-H30, respectively. Of the 483 clade C isolates, C1-M27 was the most common subclade (36%), followed by C1-nM27 (32%) and C2 (15%). The C1-M27 subclade with\n                    <jats:italic>bla<\/jats:italic>\n                    <jats:sub>CTX-M-27<\/jats:sub>\n                    became especially prominent after 2009. Our novel multiplex PCR assay revealed the predominance of the C1-M27 subclade in recent Japanese ESBL-producing\n                    <jats:named-content content-type=\"genus-species\">E. coli<\/jats:named-content>\n                    isolates and is a promising tool for epidemiological studies of ST131.\n                  <\/jats:p>","DOI":"10.1128\/aac.00179-17","type":"journal-article","created":{"date-parts":[[2017,6,5]],"date-time":"2017-06-05T20:30:26Z","timestamp":1496694626000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":96,"title":["Rapid Identification of Different Escherichia coli Sequence Type 131 Clades"],"prefix":"10.1128","volume":"61","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8595-8944","authenticated-orcid":false,"given":"Yasufumi","family":"Matsumura","sequence":"first","affiliation":[{"name":"Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Johann D. D.","family":"Pitout","sequence":"additional","affiliation":[{"name":"Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada"},{"name":"Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada"},{"name":"Division of Microbiology, Calgary Laboratory Services, Calgary, Alberta, Canada"},{"name":"Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gisele","family":"Peirano","sequence":"additional","affiliation":[{"name":"Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada"},{"name":"Division of Microbiology, Calgary Laboratory Services, Calgary, Alberta, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rebekah","family":"DeVinney","sequence":"additional","affiliation":[{"name":"Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taro","family":"Noguchi","sequence":"additional","affiliation":[{"name":"Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masaki","family":"Yamamoto","sequence":"additional","affiliation":[{"name":"Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryota","family":"Gomi","sequence":"additional","affiliation":[{"name":"Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomonari","family":"Matsuda","sequence":"additional","affiliation":[{"name":"Research Center for Environmental Quality Management, Kyoto University, Shiga, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Satoshi","family":"Nakano","sequence":"additional","affiliation":[{"name":"Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Miki","family":"Nagao","sequence":"additional","affiliation":[{"name":"Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michio","family":"Tanaka","sequence":"additional","affiliation":[{"name":"Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Satoshi","family":"Ichiyama","sequence":"additional","affiliation":[{"name":"Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1473-3099(08)70041-0"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1128\/CMR.00125-13"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.00641-13"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1128\/mBio.00388-13"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1322678111"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1128\/mBio.00958-16"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1128\/CMR.00116-14"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.3201\/eid2211.160519"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.01604-13"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1093\/cid\/cit503"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.02562-14"},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.00297-09"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.03502-13"},{"key":"e_1_3_3_15_2","doi-asserted-by":"publisher","DOI":"10.1128\/mBio.02162-15"},{"key":"e_1_3_3_16_2","doi-asserted-by":"publisher","DOI":"10.1093\/jac\/dkv017"},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.1093\/jac\/dkw530"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1128\/AEM.06663-11"},{"key":"e_1_3_3_19_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.diagmicrobio.2006.08.007"},{"key":"e_1_3_3_20_2","doi-asserted-by":"publisher","DOI":"10.1093\/jac\/dkn084"},{"key":"e_1_3_3_21_2","doi-asserted-by":"publisher","DOI":"10.1089\/cmb.2013.0084"},{"key":"e_1_3_3_22_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0104400"},{"key":"e_1_3_3_23_2","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/gku1196"},{"key":"e_1_3_3_24_2","doi-asserted-by":"publisher","DOI":"10.1093\/bioinformatics\/btu033"},{"key":"e_1_3_3_25_2","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/gkw290"},{"key":"e_1_3_3_26_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.meegid.2011.09.021"}],"container-title":["Antimicrobial Agents and Chemotherapy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.asm.org\/doi\/pdf\/10.1128\/AAC.00179-17","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.asm.org\/doi\/pdf\/10.1128\/AAC.00179-17","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,2,21]],"date-time":"2022-02-21T16:10:12Z","timestamp":1645459812000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.asm.org\/doi\/10.1128\/AAC.00179-17"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,8]]},"references-count":25,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2017,8]]}},"alternative-id":["10.1128\/AAC.00179-17"],"URL":"https:\/\/doi.org\/10.1128\/aac.00179-17","relation":{},"ISSN":["0066-4804","1098-6596"],"issn-type":[{"value":"0066-4804","type":"print"},{"value":"1098-6596","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,8]]},"assertion":[{"value":"2017-01-27","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2017-05-31","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2017-07-25","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e00179-17"}}