BIOSS
Centre for Biological Signalling Studies

Mitochondrial protein turnover: role of the precursor intermediate peptidase Oct1 in protein stabilization.

27.04.2011

Vögtle FN, Prinz C, Kellermann J, Lottspeich F, Pfanner N, Meisinger C.

Mol Biol Cell. 2011; 22(13):2135-43.

Mol Biol Cell.     online article

We compared the stability of intermediate and mature forms of Oct1 substrate proteins in organello and in vivo and found that Oct1 cleavage increases the half-life of its substrate proteins, most likely by removing destabilizing amino acids at the intermediate’s N-terminus. Thus Oct1 converts unstable precursor intermediates generated by MPP into stable mature proteins.