Popov-Celeketic D, et al. (2011) Role of the import motor in insertion of transmembrane segments by the mitochondrial TIM23 complex. EMBO Rep 12(6):542-8
Abstract: The TIM23 complex mediates translocation of proteins across, and their lateral insertion into, the mitochondrial inner membrane. Translocation of proteins requires both the membrane-embedded core of the complex and its ATP-dependent import motor. Insertion of some proteins, however, occurs in the absence of ATP, questioning the need for the import motor during lateral insertion. We show here that the import motor associates with laterally inserted proteins even when its ATPase activity is not required. Furthermore, our results suggest a role for the import motor in lateral insertion. Thus, the import motor is involved in ATP-dependent translocation and ATP-independent lateral insertion.
|Status: Published||Type: Journal Article | Research Support, Non-U.S. Gov't||PubMed ID: 21546912|
Topics addressed in this paper
Number of different genes curated to this paper: 5
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