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. 2025 Aug 14;122(33):e2506491122. doi: 10.1073/pnas.2506491122

Fig. 2.

Fig. 2.

Stabilizing interactions of the central junction. (A) An overall view of the central junction structure of 1301b_v1–ATP complex. (B) Two Watson–Crick base pairs formed by T7·A29 and T8·A28 in the internal loops. (C) T7 O2 and T8 O4′ form hydrogen bonds with G30 H21 and G30 H1, respectively. (D) G5 H21, G5 H22, and G5 H1 form hydrogen bonds with C10 O3′, C10 O2, and G11 OP2, respectively. (E) T13 O2, T13 H3, and T13 O4 form hydrogen bonds with G11 H22, G11 N3, and G9 H1/H21, respectively. (F) A15 stacks with G27, and G27 further stacks on G16·C26.