Results 61 to 70 of about 690,576 (265)

A role for taurine in mitochondrial function [PDF]

Journal of Biomedical Science, 2010
The mitochondrial pH gradient across the inner-membrane is stabilised by buffering of the matrix. A low-molecular mass buffer compound has to be localised in the matrix to maintain its alkaline pH value. Taurine is found ubiquitously in animal cells with concentrations in the millimolar range and its pKa value is determined to 9.0 (25 degrees C) and 8 ...
Hansen, Svend Høime, Andersen, Mogens Larsen, Cornett, Claus, Gradinaru, Robert, Grunnet, Niels   +4 more
openaire   +4 more sources

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

FEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara, Kinga Skoczek, Elzbieta Pyza, Milena Damulewicz   +3 more
wiley   +1 more source

Data on mitochondrial function in skeletal muscle of old mice in response to different exercise intensity

Data in Brief, 2016
Endurance exercise is securely linked to muscle metabolic adaptations including enhanced mitochondrial function (“Effects of exercise on mitochondrial oxygen uptake and respiratory enzyme activity in skeletal muscle” [1], “Effects of exercise on ...
Chounghun Kang, Wonchung Lim
doaj   +1 more source

Preventing mitochondrial fission impairs mitochondrial function and leads to loss of mitochondrial DNA. [PDF]

PLoS ONE, 2008
Mitochondria form a highly dynamic tubular network, the morphology of which is regulated by frequent fission and fusion events. However, the role of mitochondrial fission in homeostasis of the organelle is still unknown.
Philippe A Parone, Sandrine Da Cruz, Daniel Tondera, Yves Mattenberger, Dominic I James, Pierre Maechler, François Barja, Jean-Claude Martinou   +7 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Autophagy-related proteomics reveals lysosomal alterations linked to C19orf12 mutations and candidate biomarkers in MPAN patients' fibroblasts

Neurobiology of Disease
Mitochondrial Membrane Protein-Associated Neurodegeneration (MPAN) is the third most common genetically-defined subtype of Neurodegeneration with Brain Iron Accumulation (NBIA), a group of rare, clinically heterogeneous disorders. The MPAN pathomechanism,
Barbara Pakula, Agata Wydrych, Magdalena Lebiedzinska-Arciszewska, Patrycja Jakubek-Olszewska, Marta Skowrońska, Iwona Kurkowska-Jastrzębska, Justyna Janikiewicz, Aneta M. Dobosz, Emre Hakli, Jędrzej Szymański, Paolo Pinton, Agnieszka Dobrzyń, Werner J.H. Koopman, Mariusz R. Wieckowski   +13 more
doaj   +1 more source

Mitochondrial function requires NGLY1 [PDF]

Mitochondrion, 2018
Mitochondrial respiratory chain (RC) diseases and congenital disorders of glycosylation (CDG) share extensive clinical overlap but are considered to have distinct cellular pathophysiology. Here, we demonstrate that an essential physiologic connection exists between cellular N-linked deglycosylation capacity and mitochondrial function.
Jianping, Kong, Min, Peng, Julian, Ostrovsky, Young Joon, Kwon, Olga, Oretsky, Elizabeth M, McCormick, Miao, He, Yair, Argon, Marni J, Falk   +8 more
openaire   +2 more sources

α‐Synuclein aggregation landscape from phase separation to neurotoxic intermediates

FEBS Letters, EarlyView.
Alpha‐synuclein aggregation in Parkinson's disease involves a complex landscape of transient intermediates, including oligomers, fibrils and liquid–liquid phase separation (LLPS). A view is emerging in which LLPS maturation into solid‐like condensates may contribute to the formation of neurotoxic species.
Silvia Arino, Giuliana Fusco, Alfonso De Simone   +2 more
wiley   +1 more source