Journal
NATURE CHEMICAL BIOLOGY
Volume 2, Issue 1, Pages 31-32Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nchembio754
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Adenosyl-L-methionine (AdoMet) is the major methyl donor for biological methylation reactions catalyzed by methyltransferases. We report the first chemical synthesis of AdoMet analogs with extended carbon chains replacing the methyl group and their evaluation as cofactors for all three classes of DNA methyltransferases. Extended groups containing a double or triple bond in the beta position to the sulfonium center were transferred onto DNA in a catalytic and sequence-specific manner, demonstrating a high utility of such synthetic cofactors for targeted functionalization of biopolymers.
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