Biology Reference
In-Depth Information
with 0.8 M MgCl
2
. The atomic-structural analysis indicated that the
strongest interaction between the T-trimer and P3B at the three-fold
axis involved electrostatic interactions, hydrogen bonds, and surface
complementarity (Fig. 5). This intimate interaction seemed to deter-
mine the orientation of the margin of the T-trimer relative to the
Fig. 5.
Interactions between the core and the outer shell.
2
(a)
Electrostatic
potential on the surface of the core at the icosahedral three-fold axis, as
viewed from the interface between the core and the outer shell. The map of
electrostatic potential was calculated by the program used for the eF-site
database.
26
(b)
Electrostatic potential on a P8-trimer, as viewed from the
interface between the core and the outer shell.
(c)
Schematic representation
of the interaction between the inner shell and a P8-trimer at an icosahedral
three-fold axis. Positively charged patches on the P8-trimer (shown in blue)
correspond closely to negatively charged regions on the surface of the core
(shown in red) at the icosahedral three-fold axis.
