Mitochondrial protein import: from proteomics to functional mechanisms.
Mitochondria contain approximately 1,000 different proteins, most of which are imported from the cytosol. Two import pathways that direct proteins into the mitochondrial inner membrane and matrix have been known for many years. The identification of numerous new transport components in recent proteomic studies has led to novel mechanistic insight into these pathways and the discovery of new import pathways into the outer membrane and intermembrane space. Protein translocases do not function as independent units but are integrated into dynamic networks and are connected to machineries that function in bioenergetics, mitochondrial morphology and coupling to the endoplasmic reticulum.
Schmidt
Oliver
O
Institut für Biochemie und Molekularbiologie, ZBMZ, Universität Freiburg, Stefan-Meier-Strabetae 17, 79104 Freiburg, Germany. nikolaus.pfanner@biochemie.uni-freiburg.de
Pfanner
Nikolaus
N
Meisinger
Chris
C
D000818:Animals; D006801:Humans; D033681:Mitochondrial Membrane Transport Proteins / Q000378:metabolism*; D051336:Mitochondrial Membranes / Q000378:metabolism; D024101:Mitochondrial Proteins / Q000378:metabolism*; D021381:Protein Transport; D040901:Proteomics
D033681:Mitochondrial Membrane Transport Proteins; D024101:Mitochondrial Proteins