Figure 4.
Fig. 4. Stereoview comparing the P cluster of nitrogenase
in the oxidized (transparent ball-and-stick model in cyan) and
reduced (solid ball-and-stick model in gray) states (39, 40). In
the oxidized state, one of the irons is coordinated by the side
chain of Ser- 188, whereas
in the reduced state this iron is shifted and coordinates an
inorganic sulfur in the cluster instead. The coloring scheme is
as in Fig. 3. PDB entries 2MIN (oxidized) and 3MIN (reduced)
were used for this figure.
The above figure is reprinted
by permission from the ASBMB:
J Biol Chem
(2002,
277,
34499-34507)
copyright 2002.
188, whereas
in the reduced state this iron is shifted and coordinates an
inorganic sulfur in the cluster instead. The coloring scheme is
as in Fig. 3. PDB entries 2MIN (oxidized) and 3MIN (reduced)
were used for this figure.