Respiration-dependent efflux of magnesium ions from heart mitochondria.
Energy-linked respiration causes a net movement of Mg2+ between rat heart mitochondria and the ambient medium. When the extramitochondrial concontration of Mg2+ is less that about 2.5 mM the net movement of Mg2+ constitutes an efflux, whereas a net influx of Mg2+ occurs when the external concentration of Mg2+ is greater than this. Both the efflux and the influx are induced to only a very small degree by externally added ATP. Evidence suggests that Pi may be required for the respiration-induced efflux of Mg2+.
|Title:||Respiration-dependent efflux of magnesium ions from heart mitochondria.|
|Keywords:||Adenosine Diphosphate, Adenosine Triphosphate, Animals, Calcium, Electron Transport, In Vitro Techniques, Ketoglutaric Acids, Magnesium, Mitochondria, Muscle, Myocardium, Oligomycins, Oxygen Consumption, Phosphates, Rats, Rotenone|
|UCL classification:||UCL > School of Life and Medical Sciences
UCL > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > School of Life and Medical Sciences > Faculty of Life Sciences > Biosciences (Division of)
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