Results 231 to 240 of about 56,477 (262)

Brain capillary guanosine triphosphatase: A distinction from adenosine triphosphatase

Experientia, 1980
Differences in kinetic properties, pH response, sensitivity to ouabain, and disc-acrylamide electrophoresis resolution, are observed when GTP and ATP are used as the substrates for triphosphohydrolases in isolated rat brain microvessels. In brain parenchyma there are no such differences.
B M, Djuricić, T, Stojanović, B B, Mrsulja   +2 more
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Viral adenosine triphosphatase

Experientia, 1978
The catalytic and immunological properties of an adenosine triphosphatase from different types of virus have been studied. The avian myeloblastosis virus has been found to be specialized in holding this enzyme in a highly active state as compared to other virus with respect to their host cell enzyme.
openaire   +2 more sources

Ribonucleoside triphosphatase in rabbit reticulocytes

Archives of Biochemistry and Biophysics, 1966
Ribonucleoside triphosphatase in rabbit reticulocytes, discussing distribution in extracts, behavior in purification of amino acid and ...
I D, Raacke, J, Fiala, S, Matsushita
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Diseases of Renal Adenosine Triphosphatase

The American Journal of the Medical Sciences, 1995
Most renal transport is a primary or secondary result of the action of one of three membrane bound ion translocating ATPase pumps. The proximal tubule mechanisms for the reabsorption of salt, volume, organic compounds, phosphate, and most bicarbonate reabsorption depend upon the generation and maintenance of a low intracellular sodium concentration by ...
S, Eiam-Ong, M E, Laski, N A, Kurtzman
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Deoxyuridine triphosphatase in human hepatoma

International Journal of Biochemistry, 1994
1. Deoxyuridine triphosphatase (dUTPase) in human hepatoma was investigated. The apparent activity in a gram weight tissue was about 6 times that of the activity in rat livers after partial hepatectomy. 2. Most catalytic properties of the hepatoma dUTPase were similar to the enzymes from other sources. 3.
S, Hokari, I, Koyama, K, Shioda, Y, Sakagishi   +3 more
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Pharmacogenetic Significance of Inosine Triphosphatase

Pharmacogenomics, 2007
Inosine triphosphatase (ITPase) is the enzyme that catalyzes the conversion of inosine triphosphate (ITP) and deoxy-inosine triphosphate (dITP) to inosine monophosphate and deoxy-inosine monophosphate, respectively, thereby maintaining low intracellular concentrations of ITP and dITP.
Jörgen, Bierau, Martijn, Lindhout, Jaap A, Bakker   +2 more
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Mitochondrial adenosine triphosphatase

Journal of Bioenergetics, 1975
Subuni ts . . . . . . . . . . . . . . . . . . . . . . 250 Number . . . . . . . . . . . . . . . . . . . . . 250 Molecular weight and s to ich iomet ry . . . . . . . . . . . . . 251 Isola t ion and amino acid compos i t ion . . . . . . . . . . . . 252 Impuri t ies or products o f proteolysis . . . . . . . . . . . . . 255 Biogenesis . . . . . . . . . . . .
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Azasteroids and heart adenosine triphosphatase

Biochemical Pharmacology, 1966
Abstract Azasteroids, some known to be active, others to be inactive as inotropic and antishock agents, were tested as inhibitors of a metal-stimulated heart ATPase. In every instance the biologically active azasteroids inhibited catalysis just as did ouabain and the erythrophleum alkaloids.
openaire   +2 more sources

Thiamine triphosphatase in the nervous system

Biochimica et Biophysica Acta (BBA) - Biomembranes, 1972
Abstract Thiamine triphosphate is hydrolyzed by a specific triphosphatase in subcellular fractions of rat brain. This enzyme differs from nucleoside triphosphatases in (1) its subcellular distribution pattern; (2) its susceptibility to inhibition by Ca 2+ ; (3) its activation by sodium deoxycholate; (4) its failure to be affected by known inhibitors ...
R L, Barchi, P E, Braun
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