|
Figure 2.
Fig. 2. Structure of dimetal ion site in an idealized
diiron protein. Two Glu side chains form a bridging interaction
between the metal ions, whereas the remaining two carboxylates
form a one- or two-coordinate interaction with a single metal
ion. Two His side chains are visible behind the ions. Two vacant
sites face the viewer and are trans to the His ligands (Right).
The figure shows the crystal structure of DF1; carbon atoms are
green, nitrogens are blue, oxygens are red, and metal ions are
magenta. The backbone trace is shown in purple.
|
