Adenosine Triphosphatase from Rat Liver Mitochondria
نویسندگان
چکیده
منابع مشابه
Membranous effects on adenosine triphosphatase activities of mitochondria from rat liver and Morris hepatoma 3924A.
Adenosine triphosphatase (ATPase) activities of sonically prepared submitochondrial particles of rat liver and Morris Hepatoma 3924A were compared as a function of changes in temperature. On Arrhenius plots, a discontinuity at 18 degrees was observed for the rat liver mitochondrial ATPase, while the hepatoma mitochondrial ATPase revealed a discontinuity at 20.4 degrees. Values for energy of act...
متن کاملMembranous Effects on Adenosine Triphosphatase Activities of Mitochondria from Rat Liver and Morris Hepatoma 3924A1
and hepatoma mitochondrial ATPases were comparable below the break (34.5 and 35.5 kcal/mole, respectively) and above the break (11.6 and 9.2 kcal/mole, respectively). Solubilization of the mitochondrial membranes with Triton X-100 resulted in constant and similar values of energy of activation for the ATPases. Kmvalues of hepatoma and rat liver mitochondrial ATPases for adenosine triphosphate w...
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Brain mitochondria are known to differ in many respects from the mitochondria of other tissues in their sensitivity to drugs and to other exogenous factors (l-4) as well as in the nature and organization of their component enzyme systems (5-7). Comparative studies of brain mitochondria may aid in the eventual understanding of the relationship between the special features of brain mitochondria a...
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Few studIies have been conducted on adenosine triphosphatase (ATPase) in plant mitochondria (3, 5. 6). ATPase activity is important in plant metabolism since it results in the loss of the energy of ATI , and is therefore closely associated with reactions involving phosphorylation and utilization of or requiremiients for ATP. The ternm ATPase is being use(l lhere as defined by Potter (10) to ind...
متن کاملEffects of cystamine and cysteamine on the adenosine-triphosphatase activity and oxidative phosphorylation of rat-liver mitochondria.
1. Cystamine (2,2'-diaminodiethyl disulphide) caused an unmasking of mitochondrial adenosine triphosphatase and a leakage of Mg(2+) from the mitochondria, and decreased the stimulation of adenosine triphosphatase by 2,4-dinitrophenol. When Mg(2+) was added, cystamine potentiated the activation of adenosine triphosphatase by 2,4-dinitrophenol. 2. Cystamine was without effect on the adenosine tri...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1971
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)61961-1