Figure 4.
Figure 4 Structural comparison of the D subunits. Only the C
backbones
are shown. Superposition of the D1 : D2 (green : yellow) dimer
onto the D3 : D4 (red : blue) dimer. (The colour scheme is as in
Fig. 3 .) The superposition was achieved by minimizing the
r.m.s. distance between corresponding C atoms
within the structurally conserved core region. Secondary
structure elements are indicated. The asterisk represents the
kink in 3
of subunits D1 and D3.
backbones
are shown. Superposition of the D1 : D2 (green : yellow) dimer
onto the D3 : D4 (red : blue) dimer. (The colour scheme is as in
Fig. 3 .) The superposition was achieved by minimizing the
r.m.s. distance between corresponding C