Results 191 to 200 of about 28,883 (228)

Molecular kinetics of muscle adenosine triphosphatase

Archives of Biochemistry and Biophysics, 1952
Abstract 1. 1. The kinetics of the dephosphorylation of ATP by myosin follow the law, −d [ ATP ] dt = k 2 K[ myosin ][ ATP ] (1 + K [ ATP ]) . The apparent heats and entropies associated with K2 and K are, respectively, Δ H 2 ‡ = 12.4 kcal, mole −1 ; Δ S 2 ‡ = −8 cal. mole −1
L, OUELLET, K J, LAIDLER, M F, MORALES
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Adenosine triphosphatase activities in Trypanosoma cruzi

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1978
1. Subcellular fractions obtained from epimastigotes of Trypanosoma cruzi, disrupted by three different procedures, contained in addition to the already known Mg2+-activated adenosine triphosphatase (ATPase; E.C.3.6.1.4), a Ca2+-ATPase activity. 2. The Ca2+-ATPase (a) was activated by low concentrations of CaCl2 (apparent Ka, 80 microM); (b) had a Km ...
A C, Frasch, E L, Segura, J J, Cazzulo, A O, Stoppani   +3 more
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Adenosine triphosphatase of mycobacteria.

Microbios, 1980
A Mg+2-(Ca+2)-activated adenosine triphosphatase activity has been demonstrated in saprophytic, human pathogenic and non-pathogenic, and atypical, species of mycobacteria. (Na+ + K+)-activated adenosine triphosphatase was absent in the species investigated.
G, Grover, K R, Dhariwal, T A, Venkitasubramanian   +2 more
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The Mitochondrial Adenosine Triphosphatase

1982
In the previous chapter we saw that the ATPase activity of coupled mitochondria is dramatically stimulated by uncouplers and more generally by conditions that interrupt the flow of energy from the electron transfer chain to the coupling device. These observations have for a long time been interpreted to indicate that the ATPase is involved in the ...
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[Mimosa pudica adenosine triphosphatase].

Biokhimiia (Moscow, Russia), 1978
The morphological structure (pulvinus P1, P2 and P3) directly involved in the seismonastic movements of the Mimosa pudica leaf have been used to isolate: 1) "soluble" ATPase, loosely bound to pulvinus structures; 2) Ca, Mg-dependent ATPase, which is tightly bound to pulvinus structures and is extracted by a saline solution of high ionic strength, used ...
M N, Liubimova-Engel'gardt, S A, Burnasheva, F S, Faĭn, N A, Mitina, Ia M, Poprykina   +4 more
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Model Reaction for Mitochondrial Adenosine Triphosphatase

Nature, 1968
THE soluble adenosine triphosphatase (ATPase) from mitochondria1–3 is activated by several bivalent metal ions, and the pattern of activation is essentially the same whether the enzyme is acting on ATP (Fig. 1) or ITP (Fig. 2). It is clear that the ionic radius is the chief factor determining the ability of a bivalent ion to activate this enzyme.
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Cytochemical Adenosine Triphosphatase of Vorticellid Myonemes

Science, 1960
A highly specific adenosine triphosphatase has been found to be localized in the contractile apparatus of vorticellids. It is most prominent in the cilia as well as in the myonemes which course the latitudes and longitudes of the cell and spiral in the flat peristome.
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Corneal adenosine triphosphatase: A histochemical investigation

Experimental Eye Research, 1965
An adenosine triphosphatase is demonstrated in the corneal epithelium and endothelium, localized to all the cell membranes. Different substrates and incubating media have been tested, and the effects of a number of ions and substances of biological importance have been examined.
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An automated adenosine triphosphatase assay

Analytical Biochemistry, 1975
A D, Dale, A J, Thomson, A, Youngson
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Adenosine Triphosphatase

2023
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