In providing the cell with ATP generated by oxidative phosphorylation, the mitochondrial ADP/ATP carrier plays a central role in aerobic eukaryotic cells. Combining biochemical, genetic, and structural approaches contributes to understanding the molecular mechanism of this essential transport system, the dysfunction of which is implicated in neuromuscular diseases.
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http://dx.doi.org/10.1152/physiol.00005.2006 | DOI Listing |
Rev Physiol Biochem Pharmacol
January 2025
Institute of Medical Sciences, University of Aberdeen, Aberdeen, Scotland, UK.
ATP synthase is a rotary motor enzyme that drives the formation of ATP from ADP and P and uses multiple electrical forces to do this. This chapter outlines the exquisite use of these electrical forces to generate the high energy phosphates on which all our lives depend. Vacuolar ATPases and the ADP/ATP carrier also are explored.
View Article and Find Full Text PDFInt J Biol Sci
January 2025
Department of Hematology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China.
Chemoresistance is an important factor in multiple myeloma (MM) relapse and overall survival. However, the mechanism underlying resistance remains unclear. In this study, we identified adenine nucleotide translocase 3 (ANT3) as a novel biomarker and therapeutic target for MM progression and resistance to the proteasome inhibitor bortezomib (BTZ).
View Article and Find Full Text PDFJ Bioenerg Biomembr
December 2024
Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El, 424001, Russia.
Cholestasis caused by impaired bile secretion in the liver is associated with the accumulation of primary bile acids (BA): cholic acid (CA) and chenodeoxycholic acid (CDCA) in the cells of this organ. The paper studies the uncoupling effect of the CA and CDCA on the succinate-fueled rat liver mitochondria under conditions of ΔpH to Δψ conversion by nigericin. It has been established that without nigericin, the dependence of the resting-state (state 4) respiration rate on the concentrations of these BA is nonlinear and is described by a parabolic equation.
View Article and Find Full Text PDFCell Signal
December 2024
Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China; Key Laboratory of Veterinary Biotechnology of Henan Province, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China. Electronic address:
Sirtuin 5 (SIRT5) in mitochondria possesses a strong capacity for lysine desuccinylation, involving in various biological processes. Our previous research demonstrated that NH regulated autophagy dependent on SIRT5 in bovine mammary epithelial cells (bMECs). Interestingly, we discovered that SIRT5 reduced the content of NH and glutamate by inhibiting GLS activity in bMECs, the ratio of ADP/ATP also declined.
View Article and Find Full Text PDFSci Adv
December 2024
Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA.
The mitochondrial permeability transition pore (mPTP) is implicated in cardiac ischemia-reperfusion (I/R) injury. During I/R, elevated mitochondrial Ca triggers mPTP opening, leading to necrotic cell death. Although nonessential regulators of this pore are characterized, the molecular identity of the pore-forming component remains elusive.
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