{"id":560,"date":"2026-04-15T13:35:57","date_gmt":"2026-04-15T13:35:57","guid":{"rendered":"https:\/\/citations.tools.bio-logic.fr\/?p=560"},"modified":"2026-04-15T13:35:57","modified_gmt":"2026-04-15T13:35:57","slug":"mechanistic-studies-of-aziridine-formation-catalyzed-by-mononuclear-non-heme-iron-enzymes","status":"publish","type":"post","link":"https:\/\/citations.tools.bio-logic.fr\/?p=560","title":{"rendered":"Mechanistic Studies of Aziridine Formation Catalyzed by Mononuclear Non-Heme Iron Enzymes"},"content":{"rendered":"<h4>DOI:<\/h4>\n<p><a href=\"https:\/\/doi.org\/10.1021\/jacs.2c12664\" target=\"_blank\" rel=\"noopener\">10.1021\/jacs.2c12664<\/a><\/p>\n<h4>Authors:<\/h4>\n<p>Lide Cha, Jared C. Paris, Brady Zanella, Martha Spletzer, Angela Yao, Yisong Guo, Wei\u2010chen Chang<\/p>\n<h4>Abstract:<\/h4>\n<p>Aziridines are compounds with a nitrogen-containing three-membered ring. When it is incorporated into natural products, the reactivity of the strained ring often drives the biological activities of aziridines. Despite its importance, the enzymes and biosynthetic strategies deployed to install this reactive moiety remain understudied. Herein, we report the use of <i>in silico<\/i> methods to identify enzymes with potential aziridine-installing (aziridinase) functionality. To validate candidates, we reconstitute enzymatic activity <i>in vitro<\/i> and demonstrate that an iron(IV)-oxo species initiates aziridine ring closure by the C-H bond cleavage. Furthermore, we divert the reaction pathway from aziridination to hydroxylation using mechanistic probes. This observation, isotope tracing experiments using H<sub>2<\/sub><sup>18<\/sup>O and <sup>18<\/sup>O<sub>2<\/sub>, and quantitative product analysis, provide evidence for the polar capture of a carbocation species by the amine in the pathway to aziridine installation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DOI: 10.1021\/jacs.2c12664 Authors: Lide Cha, Jared C. Paris, Brady Zanella, Martha Spletzer, Angela Yao, Yisong Guo, Wei\u2010chen Chang Abstract: Aziridines are compounds with a nitrogen-containing three-membered ring. When it is incorporated into natural products, the reactivity of the strained ring often drives the biological activities of aziridines. Despite its importance, the enzymes and biosynthetic strategies [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-560","post","type-post","status-publish","format-standard","hentry","category-freeze-quench"],"_links":{"self":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts\/560","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=560"}],"version-history":[{"count":0,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts\/560\/revisions"}],"wp:attachment":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=560"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=560"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}