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Figure 1.
Fig. 1. Structures of O6MeG·C (a) and O6MeG·T
(b) pairs in DNA duplexes, unbound by protein. Hydrogen bonds
are shown as dashed lines. (a Left) O6MeG·C wobble pair
from ref. 27. (a Right) Model of Watson–Crick
O6MeG·protonated C pair from ref. 52. (b) O6MeG·T
pairs from refs. 29 and 30. The presence or absence of the H
bond indicated by the "?" has been the subject of some
controversy (29, 30).
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