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Figure 2.
Figure 2. Three-dimensional structure of the V23 -HRV2 complex.
(a) Stereo view of the 3.5 Å -averaged electron density of V3
bound to HRV2. The region corresponds to residues from His13 to
Glu36 of the V3 receptor. The V3 model is also shown in
ball-and-stick representation. The Ca^2+ ion in the center of
the acidic cluster is green. Residues involved directly in
interactions with HRV2 are labeled. (b) Orthogonal views of an
HRV2-V3 pentamer subunit. HRV2 proteins are shown as
space-filling model colored in the standard viral protein color
code (VP1, blue, VP2, green and VP3, red) in the reference
protomer and light blue in the others. The five V3 receptors are
shown as worms in yellow.
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