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Literature DB >> 8477832

Sulfhydryl oxidation induces calcium release from fragmented sarcoplasmic reticulum even in the presence of glutathione.

Abstract

Alcian blue and plumbagin induced transient Ca2+ release from fragmented sarcoplasmic reticulum. Dithiothreitol (DTT) and glutathione (GSH) partially blocked Ca2+ release induced by these oxidizing compounds. Pretreatment of alcian blue and plumbagin with DTT or GSH for more than 1 min was required to abolish the ability of the oxidizing compounds to release Ca2+. Mg2+ and ruthenium red completely blocked alcian blue-and plumbagin-induced Ca2+ release. These results suggest that oxidation of sulfhydryls on Ca2+ release channels induces Ca2+ release even in the presence of GSH in situ.

Entities: Chemical

Mesh：

Substances：

Year: 1993 PMID： 8477832 DOI： 10.1007/bf01923402

Source DB: PubMed Journal: Experientia ISSN： 0014-4754

16 in total

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Journal: Experientia Date: 1989-10-15

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