Abstract

Acetogenins are valuable inhibitor probes to get an insight into the structural and functional properties of mitochondrial NADH-ubiquinone oxidoreductase (complex I). We synthesized a photoreactive acetogenin mimic ([ 125I]DANA) which retained a strong inhibitory activity. The preliminary photoaffinity labeling with bovine heart submitochondrial particles revealed that [ 125I]DANA binds to the ND1 subunit among 45 different subunits with high specificity.

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