Figure 2. Stereo views of (a) the STNA C
trace (which has every tenth C
atom numbered) and (b) the B/Beijing
trace in the same orientation. The regions of the molecules which are within 1.5 Å in this superimposition
are coloured red, the rest, black. A DANA molecule marks the position of the active site.
The above figure is reprinted
by permission from Elsevier:
J Mol Biol