Figure 2
(a) The entire three-dimensional reciprocal lattice of PD2 obtained from the 3D-RED data viewed along c*. Only the data out to 1.0 Å are shown. Notice the ring of strong reflections at 1.0 Å resolution, showing almost perfect 20-fold symmetry. Notice also the presence of several tenfold rings in (a). (b) The original data set projected along b*. The odd layers (corresponding to the 8.2 Å c axis, shown in red) are much weaker than the even layers (corresponding to a 4.1 Å c axis). |