| Literature DB >> 454685 |
Abstract
Examples are presented of the interaction between cell organelles and metallochromic indicators used in the measurement of ionized Ca2+. Sarcoplasmic reticulum was found to sequester murexide type indicators along with Ca2+ in the presence of ATP, but not to sequester arsenazo III and antipyrylazo III. The presence of a permeable anion suppresses the sequestration of murexide type indicators by the sarcoplasmic reticulum. In the presence of ruthenium red, both rat liver and beef heart mitochondria release sequestered Ca2+ with arsenazo III, but not with murexide.Entities:
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Year: 1979 PMID： 454685 DOI： 10.1016/0304-4165(79)90031-x
Source DB: PubMed Journal: Biochim Biophys Acta ISSN： 0006-3002