{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T08:17:13Z","timestamp":1788509833137,"version":"build-2803163510"},"reference-count":32,"publisher":"American Chemical Society (ACS)","issue":"4","license":[{"start":{"date-parts":[[2018,4,16]],"date-time":"2018-04-16T00:00:00Z","timestamp":1523836800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/pubs.acs.org\/page\/policy\/authorchoice_termsofuse.html"}],"funder":[{"DOI":"10.13039\/501100001804","name":"Canada Research Chairs","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001804","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","award":["2012-9600"],"award-info":[{"award-number":["2012-9600"]}],"id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","award":["2015-05550"],"award-info":[{"award-number":["2015-05550"]}],"id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2018,4,30]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Resistance to antibiotics has become a serious problem for society, and there are increasing efforts to understand the reasons for and sources of resistance. Bacterial-encoded enzymes and transport systems, both innate and acquired, are the most frequent culprits for the development of resistance, although in Mycobacterium tuberculosis, the catalase-peroxidase, KatG, has been linked to the activation of the antitubercular drug isoniazid. While investigating a possible link between aminoglycoside antibiotics and the induction of oxidative bursts, we observed that KatG reduces susceptibility to aminoglycosides. Investigation revealed that kanamycin served as an electron donor for the peroxidase reaction, reducing the oxidized ferryl intermediates of KatG to the resting state. Loss of electrons from kanamycin was accompanied by the addition of a single oxygen atom to the aminoglycoside. The oxidized form of kanamycin proved to be less effective as an antibiotic. Kanamycin inhibited the crystallization of KatG, but the smaller, structurally related glycoside maltose did cocrystallize with KatG, providing a suggestion as to the possible binding site of kanamycin.<\/jats:p>","DOI":"10.1021\/acsomega.8b00356","type":"journal-article","created":{"date-parts":[[2018,4,16]],"date-time":"2018-04-16T08:00:48Z","timestamp":1523865648000},"page":"4213-4219","source":"Crossref","is-referenced-by-count":14,"title":["KatG-Mediated Oxidation Leading to Reduced Susceptibility\nof Bacteria to Kanamycin"],"prefix":"10.1021","volume":"3","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4507-4356","authenticated-orcid":true,"given":"Peter C.","family":"Loewen","sequence":"first","affiliation":[{"name":"University of Manitoba , , 45 Chancellor\u2019s Circle , , ,","place":["Winnipeg, Manitoba, Canada, R3T 2N2"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P. Malaka","family":"De Silva","sequence":"additional","affiliation":[{"name":"University of Manitoba , , 45 Chancellor\u2019s Circle , , ,","place":["Winnipeg, Manitoba, Canada, R3T 2N2"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lynda J.","family":"Donald","sequence":"additional","affiliation":[{"name":"University of Manitoba , , 45 Chancellor\u2019s Circle , , ,","place":["Winnipeg, Manitoba, Canada, R3T 2N2"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacek","family":"Switala","sequence":"additional","affiliation":[{"name":"University of Manitoba , , 45 Chancellor\u2019s Circle , , ,","place":["Winnipeg, Manitoba, Canada, R3T 2N2"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacylyn","family":"Villanueva","sequence":"additional","affiliation":[{"name":"University of Manitoba , , 45 Chancellor\u2019s Circle , , ,","place":["Winnipeg, Manitoba, Canada, R3T 2N2"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ignacio","family":"Fita","sequence":"additional","affiliation":[{"name":"Parc Cienti\u0301fic de Barcelona , , Baldiri i Reixac 10-12 , ,","place":["Barcelona, Spain, 08028"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6395-7932","authenticated-orcid":true,"given":"Ayush","family":"Kumar","sequence":"additional","affiliation":[{"name":"University of Manitoba , , 45 Chancellor\u2019s Circle , , ,","place":["Winnipeg, Manitoba, Canada, R3T 2N2"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2018,4,16]]},"reference":[{"key":"2026090319111790800_cit1","doi-asserted-by":"crossref","first-page":"4245","DOI":"10.1016\/S0021-9258(18)50722-5","article-title":"Purification of the o-dianisidine peroxidase from Escherichia coli B. 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Bacteriol."},{"key":"2026090319111790800_cit4","doi-asserted-by":"publisher","first-page":"591","DOI":"10.1038\/358591a0","article-title":"The catalase-peroxidase\ngene and isoniazid resistance of Mycobacterium tuberculosis","volume":"358","author":"Zhang","year":"1992","journal-title":"Nature"},{"key":"2026090319111790800_cit5","doi-asserted-by":"publisher","first-page":"408","DOI":"10.1128\/AAC.27.3.408","article-title":"Enzymatic and nonenzymatic\nsuperoxide-generating reactions\nof isoniazid","volume":"27","author":"Shoeb","year":"1985","journal-title":"Antimicrob. Agents Chemother."},{"key":"2026090319111790800_cit6","doi-asserted-by":"publisher","first-page":"43098","DOI":"10.1074\/jbc.M406374200","article-title":"Catalase-peroxidases\n(KatG) exhibit NADH oxidase activity","volume":"279","author":"Singh","year":"2004","journal-title":"J. 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