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Reversible modification of DNA by methyltransferase-catalyzed transfer and light-triggered removal of photo-caging groups
- Anhäuser, Lea, Muttach, Fabian, Rentmeister, Andrea
- Chemical communications 2018 v.54 no.5 pp. 449-451
- DNA, S-adenosylmethionine, chemical reactions, methyltransferases, moieties
- Methyltransferases are powerful tools for site-specific transfer of non-natural functional groups from synthetic analogs of their cosubstrate S-adenosyl-l-methionine (AdoMet). We present a new class of AdoMet analogs containing photo-caging (PC) groups in their side chain, enzymatic transfer of PC groups by a promiscuous DNA MTase as well as light-triggered removal from the target DNA. This strategy provides a new avenue to reversibly modulate the functionality of DNA at MTase target sites.