From TOM to the TIM23 complex – handing over of a precursor

Abstract: Mitochondrial precursor proteins with amino-terminal presequences are imported via the presequence pathway, utilizing the TIM23 complex for inner membrane translocation. Initially, the precursors pass the outer membrane through the TOM complex and are handed over to the TIM23 complex where they are sorted into the inner membrane or translocated into the matrix. This handover process depends on the receptor proteins at the inner membrane, Tim50 and Tim23, which are critical for efficient import. In this review, we summarize key findings that shaped the current concepts of protein translocation along the presequence import pathway, with a particular focus on the precursor handover process from TOM to the TIM23 complex. In addition, we discuss functions of the human TIM23 pathway and the recently uncovered pathogenic mutations in TIM50.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
From TOM to the TIM23 complex – handing over of a precursor ; volume:401 ; number:6-7 ; year:2020 ; pages:709-721 ; extent:13
Biological chemistry ; 401, Heft 6-7 (2020), 709-721 (gesamt 13)

Creator
Callegari, Sylvie
Cruz-Zaragoza, Luis Daniel
Rehling, Peter

DOI
10.1515/hsz-2020-0101
URN
urn:nbn:de:101:1-2408061554442.918437991623
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:45 AM CEST

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Associated

  • Callegari, Sylvie
  • Cruz-Zaragoza, Luis Daniel
  • Rehling, Peter

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