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Figure 2.
Figure 2. Gallery of triple and tertiary base-pairs in the
three-dimensional structure of yeast tRNA^Phe. (a) Stick
representation of triple base-pairs shown within their combined,
sigmaa-weighted |2F[o] - F[c]| electron density map contoured at
1.0 s. Phosphate atoms are shown in magenta, carbon atoms in
yellow, nitrogen atoms in blue and oxygen atoms in red.
Nucleotide labels are colour coded according to the scheme in
Figure 1(a). Mg2+ and water molecules are indicated by green and
red spheres, respectively. For clarity, only hydrogen bonds
between nucleotides are shown (broken green lines). (b) Stick
representation of tertiary base-pairs shown within their
combined, sigmaa-weighted |2F[o] - F[c]| electron density map
contoured at 1.0 s. Conventions are as in (a).
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