Broad activation of the ubiquitin-proteasome system by Parkin is critical for mitophagy [PDF]
, 2011 Parkin, an E3 ubiquitin ligase implicated in Parkinson's disease, promotes degradation of dysfunctional mitochondria by autophagy. Using proteomic and cellular approaches, we show that upon translocation to mitochondria, Parkin activates the ubiquitin ...
Anh H. Pham +49 more
core +3 more sources
The Effects of Regulatory Lipids on Intracellular Membrane Fusion Mediated by Dynamin-Like GTPases
Frontiers in Cell and Developmental Biology, 2020 Membrane fusion mediates a number of fundamental biological processes such as intracellular membrane trafficking, fertilization, and viral infection. Biological membranes are composed of lipids and proteins; while lipids generally play a structural role,
Yeojin Moon, Youngsoo Jun
doaj +1 more source
Protein import into the endosymbiotic organelles of apicomplexan parasites [PDF]
, 2018 The organelles of endosymbiotic origin, plastids, and mitochondria, evolved through the serial acquisition of endosymbionts by a host cell. These events were accompanied by gene transfer from the symbionts to the host, resulting in most of the organellar
Fellows, Justin +3 more
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Superresolution Imaging Identifies That Conventional Trafficking Pathways Are Not Essential for Endoplasmic Reticulum to Outer Mitochondrial Membrane Protein Transport [PDF]
Scientific Reports, 2017 AbstractMost nuclear-encoded mitochondrial proteins traffic from the cytosol to mitochondria. Some of these proteins localize at mitochondria-associated membranes (MAM), where mitochondria are closely apposed with the endoplasmic reticulum (ER). We have previously shown that the human cytomegalovirus signal-anchored protein known as viral mitochondria ...
Kyle Salka +9 more
openaire +3 more sources
Regulation of Mammalian Mitochondrial Dynamics: Opportunities and Challenges
Frontiers in Endocrinology, 2020 Mitochondria are highly dynamic organelles and important for a variety of cellular functions. They constantly undergo fission and fusion events, referred to as mitochondrial dynamics, which affects the shape, size, and number of mitochondria in the cell,
Rong Yu +3 more
doaj +1 more source
How proteins are transported into mitochondria [PDF]
, 1981 Most mitochondrial polypeptides are synthesized outside the organelle as precursors which are usually larger than the ‘mature’ polypeptides found within mitochondria.
Neupert, Walter, Schatz, Gottfried
core +1 more source
The Mitochondrial Tim23 Protein Transport Complex Undergoes Conformational Dynamics Coupled to the Energized State of the Inner Membrane [PDF]
Biophysical Journal, 2014 The TIM23 Complex of the mitochondrial inner membrane (IM) is a multi-component assembly that mediates the translocation of matrix-targeted precursor proteins as well as the integration of membrane proteins. This complex is energetically coupled to both an ATPase motor and the electrochemical proton potential across the IM.
Malhotra, Ketan +4 more
openaire +1 more source
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
Axonal transport plays a crucial role in mediating the axon-protective effects of NmNAT
Neurobiology of Disease, 2014 Deficits in axonal transport are thought to contribute to the pathology of many neurodegenerative diseases. Expressing the slow Wallerian degeneration protein (WldS) or related nicotinamide mononucleotide adenyltransferases (NmNATs) protects axons ...
Cheng Fang, Helena Decker, Gary Banker
doaj +1 more source
Biogenesis of mitochondrial c-type cytochromes [PDF]
, 1990 Cytochromesc andc 1 are essential components of the mitochondrial respiratory chain. In both cytochromes the heme group is covalently linked to the polypeptide chain via thioether bridges. The location of the two cytochromes is in the intermembrane space;
Gonzales, Daniel H., Neupert, Walter
core +2 more sources