The enzyme co-substrate S-adenosylmethionine is a potential source of two different free radicals, yet only one seemed to occur in nature. The discovery of an unusual enzyme reveals that both radicals can be formed.
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Generation of non-stabilized alkyl radicals from thianthrenium salts for C–B and C–C bond formation
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Broderick, J. A radically different enzyme. Nature 465, 877–878 (2010). https://doi.org/10.1038/465877a
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DOI: https://doi.org/10.1038/465877a
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