Enzyme shapes mitochondria
نویسندگان
چکیده
منابع مشابه
Enzyme shapes mitochondria
Stem cells sport longest telomeres A dult stem cell hideouts can be identifi ed by the presence of extra long telomeres, according to fi ndings from Ignacio Flores, Maria Blasco (Spanish National Cancer Center, Madrid, Spain), and colleagues. Because of their location at chromosome tips, telomeres shorten with every cell division. Stem cells divide more slowly than other cell types, so Blasco’s...
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Metabolic fluxes are governed by physical and economic principles. Stationarity constrains them to a subspace in flux space and thermodynamics makes them lead from higher to lower chemical potentials. At the same time, fluxes in cells represent a compromise between metabolic performance and enzyme cost. To capture this, some flux prediction methods penalise larger fluxes by heuristic cost terms...
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Catalase and superoxide dismutase activities have been explored in the yeast Saccharomyces cerevisiae during batchwise growth experiment. During the diauxic growth in YPD medium high Ys values were obtained (0.415 0.423) and correlation between the total activities of both enzymes has been found. A mitochondrial fraction from three type strains of Saccharomyces cerevisiae has been isolated. The...
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Mitochondria from the muscle of the parasitic nematode Ascaris lumbricoides var. suum function anaerobically in electron transport-associated phosphorylations under physiological conditions. These helminth organelles have been fractionated into inner and outer membrane, matrix, and intermembrane space fractions. The distributions of enzyme systems were determined and compared with corresponding...
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Mitochondrial cholesterol 27-hydroxylase (CYP27A1) plays an important role in the maintenance of intracellular cholesterol homeostasis. Cholesterol delivery to the mitochondrial inner membrane is believed to be a rate-limiting step for the "acidic" pathway of bile acid synthesis. This work reports that proteinase K treatment of mitochondria markedly increases CYP27A1 specific activity. With end...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2008
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.1811rr2