Phosphatidate and oxidized fatty acids are calcium ionophores. Studies employing arsenazo III in liposomes.

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Phosphatidate and oxidized fatty acids are calcium ionophores. Studies employing arsenazo III in liposomes.

Liposomes which have entrapped the metallochromic dye, arsenazo III, constitute a sensitive assay system for ionophoresis of divalent cations. By this means we have compared known calcium ionophores (A23187, ionomycin) with membrane phospholipids, fatty acids, prostanoids, and retinoids. Added at micromolar concentrations to preformed multilamellar liposomes (phosphatidylcholine 7:dicetyl phosp...

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ژورنال

عنوان ژورنال: Journal of Biological Chemistry

سال: 1981

ISSN: 0021-9258

DOI: 10.1016/s0021-9258(19)69677-8