Results 111 to 120 of about 769,880 (329)

Mitochondrial Oxidative Damage in Chicken Skeletal Muscle Induced by Acute Heat Stress

The Journal of Poultry Science, 2007
Mitochondria have long been known to play a critical role in maintaining bioenergetic status under physiological conditions. Our previous studies have shown that acute heat stress increases production of mitochondrial reactive oxygen species (ROS) in ...
Ahmad Mujahid, Neil R. Pumford, Walter Bottje, Kiyotaka Nakagawa, Teruo Miyazawa, Yukio Akiba, Masaaki Toyomizu   +6 more
doaj   +1 more source

Murburn scheme for thermogenesis mediated by uncoupling protein [PDF]

arXiv, 2018
Thermogenesis by uncoupling protein (UCP) has traditionally been explained as the dissipation of proton gradient across the inner mitochondrial membrane into heat. Herein, we propose that UCPs, aided by the large pore and positively charged amino acids of suspended loops, enable protonation and transport of DROS.
arxiv  

Etoposide‐induced cancer cell death: roles of mitochondrial VDAC1 and calpain, and resistance mechanisms

Molecular Oncology, EarlyView.
The complex mode of action of the topoisomerase II inhibitor etoposide in triggering apoptosis involves several mechanisms: overexpression of the mitochondrial protein VDAC1, leading to its oligomerization and formation of a large channel that mediates the release of pro‐apoptotic protein; and overexpression of the apoptosis regulators p53, Bax, and ...
Aditya Karunanithi Nivedita, Varda Shoshan‐Barmatz   +1 more
wiley   +1 more source

Release of Brain Mitochondrial Hexokinase by Acidic Proteins and Macromolecular Polyanions [PDF]

arXiv, 2005
Preparations of arachidonic acid binding and non-binding proteins from bovine brain, four acidic proteins (alpha-casein, phosvitin, beta-lactoglobulin A and B), the peptide polyglutamate, and two polyanions (heparin, dextran sulfate) enhanced both basal and glucose 6-phosphate induced solubilization of rat brain mitochondrial hexokinase (ATP:D-hexose 6-
arxiv  

The processing peptidase of yeast mitochondria [PDF]

, 1988
Two proteins co-operate in the proteolytic cleavage of mitochondrial precursor proteins: the mitochondrial processing peptidase (MPP) and the processing enhancing protein (PEP).
Cheng, Ming Yuan, Hartl, Franz-Ulrich, Horwich, Arthur, Neupert, Walter, Ostermann, Joachim, Pollock, Robert A.   +5 more
core  

Mitochondrial protein import [PDF]

, 1994
The transport of nuclear-encoded proteins from the cytosol into mitochondria is mediated by targeting (signal) sequences present on precursor forms.
Neupert, Walter, Schwarz, Elisabeth
core   +1 more source

Respiratory complex I‐mediated NAD+ regeneration regulates cancer cell proliferation through the transcriptional and translational control of p21Cip1 expression by SIRT3 and SIRT7

Molecular Oncology, EarlyView.
NAD+ regeneration by mitochondrial complex I NADH dehydrogenase is important for cancer cell proliferation. Specifically, NAD+ is necessary for the activities of NAD+‐dependent deacetylases SIRT3 and SIRT7, which suppress the expression of p21Cip1 cyclin‐dependent kinase inhibitor, an antiproliferative molecule, at the translational and transcriptional
Masato Higurashi, Kazunori Mori, Hidetsugu Nakagawa, Momoko Uchida, Fumihiro Ishikawa, Motoko Shibanuma   +5 more
wiley   +1 more source

Different Transport Pathways of Individual Precursor Proteins in Mitochondria [PDF]

, 1981
Transport of mitochondrial precursor proteins into mitochondria of Neurospora crassa was studied in a cellfree reconstituted system. Precursors were synthesized in a reticulocyte lysate programmed with Neurospora mRNA and transported into isolated ...
Allen E. H., Ambler R. P., Basile G., Conboy J. G., Cote C., Fisher W. R., Hackenberg H., Hallermayer G., Harmey M. A., Heller J., Jagow G., Korb H., Laemmli U. K., Lewin A., Maccechini M. -L., Maccechini M. -L., Michel R., Mihara K., Mori M., Nelson N, Paul K. G., Pelham H. R. B., Raymond Y., Schatz G., Schmelzer E., Sebald W., Shore G. S., Sonderegger P., Tzagoloff A., Zimmermann R., Zimmermann R., Zimmermann R.   +31 more
core   +1 more source

Stochastic variation in the FOXM1 transcription program mediates replication stress tolerance

Molecular Oncology, EarlyView.
Cellular heterogeneity is a major cause of drug resistance in cancer. Segeren et al. used single‐cell transcriptomics to investigate gene expression events that correlate with sensitivity to the DNA‐damaging drugs gemcitabine and prexasertib. They show that dampened expression of transcription factor FOXM1 and its target genes protected cells against ...
Hendrika A. Segeren, Kathryn A. Wierenga, Frank M. Riemers, Elsbeth A. van Liere, Bart Westendorp   +4 more
wiley   +1 more source

The selectivity filter of the mitochondrial protein import machinery

BMC Biology, 2020
Background The uptake of newly synthesized nuclear-encoded mitochondrial proteins from the cytosol is mediated by a complex of mitochondrial outer membrane proteins comprising a central pore-forming component and associated receptor proteins.
Sebastian Kreimendahl, Jan Schwichtenberg, Kathrin Günnewig, Lukas Brandherm, Joachim Rassow   +4 more
doaj   +1 more source