Figure 7 - full size

 

Figure 7.
FIG. 7. Stereoscopic drawin of the haem group and its environment in met-erythrocruorin. The iron-ligand bonds are shown by thin lins. The bond to the water molecule is dashed, since it. is 3 A from th iron and may not really be co-ordinated to it. Polar linkages of the haem to t,hc globin and hydrogen bonds involving water molecules are represented by thin lines.

The above figure is reprinted by permission from Elsevier: J Mol Biol (1979, 127, 309-338) copyright 1979.