Results 51 to 60 of about 29,949 (269)
The Structure of the Drp1 Lattice on Membrane
Journal of Molecular BiologyABSTRACT Mitochondrial health relies on the membrane fission mediated by dynamin-related protein 1 (Drp1). Previous structural studies of Drp1 on remodeled membranes were hampered by heterogeneity, leaving a critical gap in the understanding of the mitochondrial fission mechanisms. Here we present a cryo-electron microscopy structure of
Ruizhi Peng +4 more
openaire +3 more sources
Actin filaments as dynamic reservoirs for Drp1 recruitment
Molecular Biology of the Cell, 2016 Drp1 is a dynamin-family GTPase recruited to mitochondria and peroxisomes, where it oligomerizes and drives membrane fission. Regulation of mitochondrial Drp1 recruitment is not fully understood. We previously showed that Drp1 binds actin filaments directly, and actin polymerization is necessary for mitochondrial Drp1 oligomerization in mammals.
Hatch, Anna L. +4 more
openaire +2 more sources
Parkin suppresses Drp1-independent mitochondrial division [PDF]
Biochemical and Biophysical Research Communications, 2016 The cycle of mitochondrial division and fusion disconnect and reconnect individual mitochondria in cells to remodel this energy-producing organelle. Although dynamin-related protein 1 (Drp1) plays a major role in mitochondrial division in cells, a reduced level of mitochondrial division still persists even in the absence of Drp1. It is unknown how much
Madhuparna, Roy +3 more
openaire +2 more sources
RoundMi: A quantitative method to analyze mitochondrial morphology in mitotic cells
FEBS Open Bio, EarlyView.RoundMi is a workflow for rapid analysis of mitochondrial morphology in mitotic cells. By combining adaptive preprocessing with automated segmentation and quantification, it enables accurate measurements from single focal plane images, reducing acquisition time and computational demands while remaining compatible with high‐throughput fixed and live ...
Elmira Parvindokht Bararpour +2 more
wiley +1 more source
Proteolytic Processing of OPA1 Links Mitochondrial Dysfunction to Alterations in Mitochondrial Morphology [PDF]
, 2006 Many muscular and neurological disorders are associated with mitochondrial dysfunction and are often accompanied by changes in mitochondrial morphology.
Attardi, Giuseppe +11 more
core +2 more sources
A dividing matter: Drp1/Dnm1-independent mitophagy [PDF]
Journal of Cell Biology, 2016 Whether or not mitophagy depends on prior mitochondrial fragmentation by the canonical mitochondrial division machinery is controversial. In this issue, Yamashita et al. (2016. J. Cell Biol. https://doi.org/10.1083/jcb.201605093) report that mitochondrial fragments start to bud and divide from mitochondrial tubules when in tight association with ...
openaire +3 more sources
Drp1 Phosphorylation Is Indispensable for Steroidogenesis in Leydig Cells [PDF]
Endocrinology, 2019 The initial steps of steroidogenesis occur in the mitochondria. Dynamic changes in the mitochondria are associated with their fission and fusion. Therefore, understanding the cellular and molecular relationships between steroidogenesis and mitochondrial dynamics is important.
Ji-Eun Park +10 more
openaire +2 more sources
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Super‐Refractory Status Epilepticus (SRSE) is a rare, life‐threatening neurological emergency with unclear etiology in many cases. Mitochondrial dysfunction, often due to disease‐causing genetic variants, is increasingly recognized as a cause, with each gene producing distinct pathophysiological mechanisms.
Pouria Mohammadi +2 more
wiley +1 more source
Open and cut: allosteric motion and membrane fission by dynamin superfamily proteins. [PDF]
, 2019 Cells have evolved diverse protein-based machinery to reshape, cut, or fuse their membrane-delimited compartments. Dynamin superfamily proteins are principal components of this machinery and use their ability to hydrolyze GTP and to polymerize into ...
Frost, Adam, Kalia, Raghav
core
αSynuclein control of mitochondrial homeostasis in human-derived neurons is disrupted by mutations associated with Parkinson’s disease [PDF]
, 2017 The etiology of Parkinson’s disease (PD) converges on a common pathogenic pathway of mitochondrial defects in which α-Synuclein (αSyn) is thought to play a role.
Alloatti, Matías +12 more
core +1 more source