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Figure 4.
Figure 4: The U3–U11 (UGUUUUUUU) RNA segment in the complex
(stereo view). RNA is represented by a wire-loop model in
yellow, with atoms of nitrogen, oxygen and phosphorus shown in
blue, red and purple, respectively. The ribose moieties, except
for U8, are in the C2'-endo form. Light green broken lines show
the intramolecular hydrogen bonds that characterize the turn
conformation of RNA. The side chains of the amino acids that
interact with the RNA backbone are represented in green. Red
broken lines denote the intermolecular hydrogen bonds of the
amino-acid side chains with the phosphate–sugar backbone.
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