Results 211 to 220 of about 6,006 (253)
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Collagenase Sensitivity and Aggregation Properties of Electrophorus Acetylcholinesterase
European Journal of Biochemistry, 1978Tailed forms of Electrophorus acetylcholinesterase, mainly A (9 S) and C (14.2 S) forms, have been subjected to collagenase treatment. Several steps have been identified, yielding molecules which have lost different portions of the tail, and eventually resulting in separation of the isolated tetramers. These modifications result in the disappearance of
S, Bon, J, Massoulié
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2009
When Jacques Ellul (1964, p. 432) predicted the use of “electronic banks” in his book, The Technological Society, he was not referring to the computerization of financial institutions or the use of Automatic Teller Machines (ATMs). Rather it was in the context of the possibility of the dawn of a new entity- the coupling of man and machine.
Katina Michael, M.G. Michael
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When Jacques Ellul (1964, p. 432) predicted the use of “electronic banks” in his book, The Technological Society, he was not referring to the computerization of financial institutions or the use of Automatic Teller Machines (ATMs). Rather it was in the context of the possibility of the dawn of a new entity- the coupling of man and machine.
Katina Michael, M.G. Michael
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An asymmetric reactive site on electrophorus acetylcholinesterase
International Journal of Neuropharmacology, 1964Abstract Lactoylcholine (LCh) is a racemic choline ester with an asymmetric carbon in the acid moiety. l (+)—LCh is hydrolyzed far more rapidly than d (−)—LCh by purified acetylcholinesterase from the electric organ of Electrophorus. At high substrate concentrations l (+) —LCh is also hydrolyzed more rapidly than acetylcholine but at approximately ...
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[248] Acetylcholinesterase (Electrophorus electricus)
1971Publisher Summary This chapter focuses on Acetylcholinesterase ( Electrophorus electricus ). Acetylcholinesterase (ACh-esterase) is present in conducting fibers throughout the animal kingdom and is localized in the excitable membrane. According to Nachmansohn's theory, the action of acetylcholine induces a conformational change of a receptor protein,
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Acetylcholine receptors from Torpedo and Electrophorus have similar subunit structures
Biochemistry, 1980Previously, acetylcholine receptor purified from the electric organs of electric eels (Electrophorus electricus) and electric rays (Torpedo californica) (torpedo) had appeared to differ in subunit structure. Receptor from torpedo has the subunit structure alpha 2 beta gamma delta, but subunits corresponding only to alpha, beta, and gamma had been ...
J, Lindstrom, J, Cooper, S, Tzartos
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Transients in glycolytic metabolism following electrical activity in electrophorus
Biochimica et Biophysica Acta (BBA) - Specialized Section on Biophysical Subjects, 1964Abstract The cyclic increases and decreases of fluorescence emission of slices of the main organ of Electrophorus electricus which have been interpreted as DPN + reduction at the glyceraldehyde-3-phosphate dehydrogenase (EC 1.2.1.12) site are here correlated with assays of essential intermediates of glycolysis.
P K, MAITRA +3 more
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The origin of electric organs of Electrophorus electricus
The Anatomical Record, 1966AbstractThe electric organs (main, Sachs' and Hunter's) of a 23 cm and a 38 cm long Electrophorus electricus were studied by histological methods. The results were compared with 12 cm (Keynes, '61) and 140 cm (Couceiro and Ackermann, '48) specimens.
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Interaction and inhibition of acetylcholinesterase from Electrophorus electricus by nitrosamines
Archives of Biochemistry and Biophysics, 1990Kinetic analysis has shown that dimethylnitrosamine, dipropylnitrosamine, dibutylnitrosamine, and diphenylnitrosamine initially act as reversible competitive inhibitors with respect to the substrate, acetylthiocholine chloride. The inhibitor constants Ki vary from 21-30 microM for the aliphatic nitrosamines to 8.2 microM for the aromatic ...
B, Shuttleworth +2 more
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Purification of acetylcholine receptors from the muscle of Electrophorus electricus
Biochemistry, 1983Muscle from the electric eel Electrophorus electricus contains acetylcholine receptors at 50 times the concentration of normal mammalian muscle and fully one-tenth the concentration of receptors in its electric organ tissue. Receptor is organized much more diffusely over the surface of Electrophorus muscle cells than is the case in normally innervated ...
J M, Lindstrom +2 more
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