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Figure 2.
Figure 2 The metal-binding site of PPE. The metal site is shown
in red, the traces of loop 58-70 in grey and the atoms of the
amino acids and water molecules coordinating the metal in dark
blue (Na[2]SO[4] complex) and light blue (sodium citrate/CaCl[2]
complex). The two structures were superimposed so that the metal
coordinates are identical in both cases. This figure was also
prepared using the programs MOLSCRIPT (Kraulis, 1991[Kraulis, P.
J. (1991). J. Appl. Cryst. 24, 946-950.]) and Raster3D (Merritt
& Bacon, 1997[Merritt, A. E. & Bacon, D. J. (1997). Methods
Enzymol. 277, 505-524.]).
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