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Open Access Thiohistidine Biosynthesis

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Ergothioneine and ovothiol A are sulfur-containing histidine derivatives produced by microorganisms including Mycobacterium tuberculosis, Trypanosoma cruzi or Erwinia amylovora and may also play important roles in human physiology. Based on our recent identification of thiohistidine biosynthetic enzymes from Mycobacterium smegmatis and Erwinia tasmaniensis we investigate several aspects of sulfur-based redox biochemistry. For example, we are characterizing the catalytic mechanism of two thiohistidine biosynthetic enzymes which afford O2-dependent sulfur insertion into the C(5)–H and C(2)–H bonds of the imidazolyl side chain of histidine.
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Keywords: BIOSYNTHESIS; ERGOTHIONEINE; OVOTHIOL; OXIDATIVE STRESS

Document Type: Research Article

Affiliations: University of Basel Department of Chemistry St. Johanns-Ring 19 CH-4056 Basel, Switzerland. [email protected]

Publication date: May 1, 2013

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  • International Journal for Chemistry and Official Membership Journal of the Swiss Chemical Society (SCS) and its Divisions

    CHIMIA, a scientific journal for chemistry in the broadest sense, is published 10 times a year and covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.

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