Function:Required for intramitochondrial proteolysis. Catalyzes the initial steps of protein degradation. Hydrolyzes ATP and degrades protein and peptide substrates in an ATP-dependent manner. Binds to single-stranded but not to double-stranded DNA.,similarity:Belongs to the peptidase S16 family.,similarity:Contains 1 Lon domain.,tissue specificity:Duodenum, heart, lung and liver, but not thymus.,
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