Now showing items 21-30 of 79
Effect of potassium and valinomycin on oxidative phosphorylation in intact beef heart mitochondria and submitochondrial particles
(Elsevier, 1967-12)
Beef heart mitochondria and submitochondrial particles have been used to measure parameters of oxidative phosphorylation with respect to varying concentrations of potassium and valinomycin. In the absence of valinomycin, ...
Glutamine synthetase : IV. Its formation in rat liver following partial hepatectomy and during repletion
(Elsevier, 1964)
The change in glutamine synthetase activity has been studied under two conditions of liver growth, namely, mitotic growth after partial hepatectomy and nonmitotic growth during repletion after a fast. The surgical operation ...
Interaction between myosin and its substrates
(Elsevier, 1960-03)
Low concentrations of p-chloromercuribenzoate (PCMB), Zn++, or Cd++ increase the ATPase and CTPase activities of myosin B but inhibit ITPase and GTPase activities. Higher concentrations of these modifiers inhibit the ...
Distribution of [alpha]-aminoisobutyric-C14 acid in rats deficient in thiamine, pantothenate, fatty acids, or potassium
(Elsevier, 1965-08)
A nutritional deficiency of fatty acids in young rats resulted in a marked elevation of the steady-state serum level of an injected dose of [alpha]-aminoisobutyric acid, and in a decrease in the transport of this model ...
A new, sensitive determination of phosphate
(Elsevier, 1969-07)
A new method for the determination of phosphorus using Triton X-100 instead of reducing agents is more sensitive than procedures described earlier. Organic phosphate esters do not appear to interfere with the determination ...
Metabolism of dehydroepiandrosterone and dehydroepiandrosterone sulfate in tissue extracts of rabbit ovaries
(Elsevier, 1969-02)
The simultaneous incubation of 3H-dehydroepiandrosterone sulfate and 14C-dehydroepiandrosterone by soluble and microsomal extracts of rabbit ovaries was investigated. 3H-dehydroepiandrosterone sulfate was converted to ...
Hydrostatic pressure effects on rabbit and echinoderm myosin ATPase
(Elsevier, 1969-06)
When saturated with ATP, sea cucumber myosin hydrolyzes ATP about 15 times more slowly than rabbit myosin, as expected from the slower contraction time of the muscle. The Arrhenius plots coincide at low temperatures, but ...