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. Author manuscript; available in PMC: 2015 Dec 8.
Published in final edited form as: Org Lett. 2015 May 13;17(11):2586–2589. doi: 10.1021/acs.orglett.5b00799

Figure 4.

Figure 4

1a (left) and 1b (right) in ternary complex with pol β and DNA. R183 makes a water-mediated H-bond with the β,γ-NH in 1a. A corresponding interaction between R183 and the α,β-NH of 1b is not possible.