Figure 3 - full size

 

Figure 3.
Fig. 3. (a) Projectio of the base-pair step 02 'mer(A5)*d(T1 6)- d(T6)*02 'mer(Al 5) roughly along the planes of base-pairs, looking into the minor groove. The methoxy groups of the RNA residues adopt an anti arrangement with respect to the ribose moieties, leading to an approximate tram orientation of the

The above figure is reprinted by permission from Cell Press: Chem Biol (1994, 1, 39-45) copyright 1994.