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Iron-sulfur clusters Fe2S2 centers

The addition of MMOH does not affect the rates of electron transfer between NADH and oxidized FAD. However, in the MMO Bath system, the presenee of MMOH results in less semiquinone formation, and the reduction of the [Fe2S2] cluster is delayed. This suggests that when the iron-sulfur cluster of MMOR is reduced, intermolecular electron transfer to the diiron center of MMOH is very fast. Subsequently, the second electron is... [Pg.248]

The electrons from FMNH2 are transferred to the next electron carrier, coenzyme Q, via the iron-sulfur centers of the NADH-CoQ reductase. The iron-sulfur centers consist of iron atoms paired with an equal number of acid-labile sulfur atoms. The respiratory chain iron-sulfur clusters are of the Fe2S2 or Fe4S4 type. The iron atom, present as nonheme iron, undergoes oxidation-reduction cycles (Fe + Fe + -t- e ). In the Fe4S4 complexes, the centers... [Pg.251]

See other pages where Iron-sulfur clusters Fe2S2 centers is mentioned: [Pg.603]    [Pg.131]    [Pg.754]    [Pg.754]    [Pg.603]    [Pg.4074]    [Pg.142]    [Pg.1026]    [Pg.341]    [Pg.497]    [Pg.497]    [Pg.380]    [Pg.113]    [Pg.2258]    [Pg.92]    [Pg.261]    [Pg.103]    [Pg.1989]   
See also in sourсe #XX -- [ Pg.135 , Pg.168 ]



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Cluster center

Fe2S2 centers

Iron center

Iron clusters

Iron-sulfur

Sulfur cluster

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