A kainic acid receptor from frog brain purified using domoic acid affinity chromatography.

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A kainic acid receptor from frog brain purified using domoic acid affinity chromatography.

A kainic acid receptor was purified from Triton X-100/digitonin-solubilized frog brain membranes. The purification was carried out in two steps: ion exchange chromatography using DEAE-Sepharose CL-6B and affinity chromatography with domoic acid immobilized on Sepharose 4B. The specific binding activity of the affinity-purified receptor is 481-fold higher than that of the crude solubilized prepa...

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Isolation, localization, and cloning of a kainic acid binding protein from frog brain.

Excitatory amino acids (EAA) are major neurotransmitters in the vertebrate central nervous system. EAA receptors have been divided into three major subtypes on the basis of electrophysiological and ligand binding studies: N-methyl-D-aspartate, kainate, and quisqualate receptors. To understand their molecular properties, we undertook a project aimed at isolation and cloning of these receptor sub...

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Kainic acid is supposed to be a specific agonist for a subclass of excitatory glutamate receptors in the vertebrate CNS. An investigation of (2 nM) [3H]kainic acid binding sites in goldfish brain, using quantitative autoradiography, has revealed evidence for two types of kainic acid receptors which differ in sensitivity to glutamic acid. L-Glutamic acid (0.1-1 mM) displaced over 95% of specific...

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Domoic Acid Epileptic Disease

Domoic acid epileptic disease is characterized by spontaneous recurrent seizures weeks to months after domoic acid exposure. The potential for this disease was first recognized in a human case study of temporal lobe epilepsy after the 1987 amnesic shellfish-poisoning event in Quebec, and was characterized as a chronic epileptic syndrome in California sea lions through investigation of a series ...

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ژورنال

عنوان ژورنال: Journal of Biological Chemistry

سال: 1988

ISSN: 0021-9258

DOI: 10.1016/s0021-9258(18)69234-8