Figure 7 - full size

Figure 7.
Figure 7. Tetraloop-minor groove interaction. (a) Stereo representation of the GAAA tetraloop of one molecule interacting with the minor groove of an adjacent RNA. (b) Base triples formed by this contact, with the final 2F[o] - F[c] electron density map contoured at 1.6s superimposed. The hydrogen bond between A54 and U34 is mediated by a solvent molecule.