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. 2020 Apr 8;142(18):8367–8373. doi: 10.1021/jacs.0c01879

Figure 6.

Figure 6

(a) Low-energy structure of the b-G4pep3:ckit-1 complex, highlighting the arginine belt in orange. (b) Detail of complex, showing interactions between Arg7/8 belt (green) and the phosphate groups of G18/A19 in the AGGAG loop (red), with stacking on 3′-tetrad (yellow) through Leu5 and the N-terminus (behind Leu5). Arg4 preorganization is maintained. (c) Low-energy structure of b-G4pep1:ckit-1 complex, highlighting Ser4/7 in green. (d) Detail of b-G4pep1 showing weaker interactions of Ser4/7 and Ile7 with the loops.