Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Dennis W. Jung"'
Publikováno v:
Analytical Biochemistry. 324:258-268
We have expressed aequorin in mitochondria of the yeast Saccharomyces cerevisiae and characterized the resulting strain with respect to mitochondrial Ca(2+) transport in vivo and in vitro. When intact cells are suspended in water containing 1.4 mM et
Autor:
Gerald P. Brierley, Dennis W. Jung
Publikováno v:
American Journal of Physiology-Cell Physiology. 277:C1194-C1201
Mitochondria must maintain volume homeostasis in order to carry out oxidative phosphorylation. It has been postulated that the concentration of free Mg2+([Mg2+]) serves as the sensor of matrix volume and regulates a K+-extruding K+/H+antiport (K. D.
Publikováno v:
Journal of Biological Chemistry. 272:21104-21112
Yeast mitochondria (Saccharomyces cerevisiae) contain a permeability transition pore which is regulated differently than the pore in mammalian mitochondria. In a mannitol medium containing 10 mM Pi and ethanol (oxidizable substrate), yeast mitochondr
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1320(3):310-320
The matrix free magnesium ion concentration, [Mg2+]m, estimated using the fluorescent probe furaptra, averaged 0.67 mM in 15 preparations of beef heart mitochondria containing an average of 21 nmol total Mg2+ per mg protein. [Mg2+]m was compared with
Autor:
Gerald P. Brierley, Dennis W. Jung
Publikováno v:
Journal of Bioenergetics and Biomembranes. 26:527-535
The pathways for the uptake and extrusion of Mg2+ by mitochondria are now well defined, the present evidence suggests that uptake occurs by nonspecific diffusive pathways in response to elevated membrane potential. There is disagreement as to some of
Structural perturbation of the a3-CuB site in mitochondrial cytochrome c oxidase by alcohol solvents
Publikováno v:
Biochemistry. 29:4627-4633
Ethanol has been observed to cause a perturbation of the catalytic center of the major respiratory protein cytochrome c oxidase. These effects were examined by Fourier transform infrared spectroscopy of carbon monoxide complexes of cytochrome a3Fe an
Publikováno v:
Biochemistry. 29:4121-4128
The concentration of free Mg2+ in the matrix of isolated heart mitochondria has been monitored by using the fluorescent probe furaptra (mag-fura-2). Beef heart mitochondria respiring in a KCl medium in the absence of external Mg2+ maintain free matri
Autor:
Gerald P. Brierley, Dennis W. Jung
Publikováno v:
Biochemistry. 29:408-415
The fluorescence of 2',7'-bis(carboxyethyl)-5(6)-carboxyfluorescein (BCECF) has been used to follow a K(+)-dependent alkaline shift in the matrix pH (pHi) of isolated heart mitochondria. The K(+)-dependent pHi change has properties consistent with an
Publikováno v:
Annals of the New York Academy of Sciences. 779:553-555