Analysis of the iron-sulfur clusters within the complex I (NADH:ubiquinone oxidoreductase) isolated from potato tuber mitochondria
1995
Lin, Di | Sled, V.D. | Ohnishi, T. | Brennicke, A. | Grohmann, L.
The mitochondrial complex I (NADH:ubiquinone oxidoreductase) isolated from potato (Solanum tuberosum) has been investigated for the presence of iron-sulfur clusters. EPR spectroscopic analysis detected signals arising from clusters N1, N2, N3 and N4. Quantitation of the content of iron and sulfur within the isolated complex I showed the preparation to contain 22.6 mol acid-labile sulfide and 30.4 mo iron/mol complex 1. The iron-sulfur cluster composition of the plant complex I appears to be similar to the well-known composition found in Neurospora crassa.
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