Figure 6.
Figure 6. Stereo view of the interface around the molecular
3-fold axis. There is a water cluster in the interior and one
calcium ion held by three aspartate residues at the external end
of the interface (top). Because the respective residues are
conserved, these features occur most likely also in the E. coli
homologue.
The above figure is reprinted
by permission from Elsevier:
J Mol Biol
(1997,
266,
761-775)
copyright 1997.