Biomedical Engineering Reference
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transitions is equal to -0.29 and -0.46 eV, respectively (Watt
and Reddy, 1994; Yoo et al., 1999). It was shown in the case of Av2 mutant
for the transition in the Av 1
(Lanzilotta and Seefeldt, 1997; Lanzilotta et.al, 1997). The potential of Avl in the
Av2Avl complex in the absence of MgATP was found to be equal to -0.62 eV. In the
presence of dithionate the second electron is not transferred without MgATP, but the
state
was observed using Ti (III) as a reductant (Nyborg et al., 2000).
In the oxidized state, the P cluster is a single cluster consisting of
and [4Fe—
3S] subclusters connected by the bridging S(
) sulfur (Fig. 3.3) (Rees and Howard,
2000). The cluster reduction is accompanied by a change in its structure. The ferro-iron
cluster of FeMo-protein in the initially reduced state can reversibly be oxidized to
the paramagnetic states and The potentials for the transitions
and are equal to -
0.307, -0.309, -0.309, and +0.09 V, respectively (Pierik et al., 1993). In the presence of
1
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