doi: 10.1016/0014-5793(89)81127-5.
S-100a0 protein stimulates Ca2+-induced Ca2+ release from isolated sarcoplasmic reticulum vesicles
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- PMID: 2477281
- DOI: 10.1016/0014-5793(89)81127-5
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S-100a0 protein stimulates Ca2+-induced Ca2+ release from isolated sarcoplasmic reticulum vesicles
FEBS Lett.
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Free article
Abstract
S-100a0 protein, the alpha alpha-isoform of the S-100 family, stimulates Ca2+-induced Ca2+ release from terminal cisternae isolated from rat skeletal muscle cells. The stimulatory effect of S-100a0 is maximal at approximately 5 microM S-100a0 and half maximal at approximately 0.1 microM S-100a0, at 1.8 microM free Ca2+ in the presence of 5 mM Mg2+ plus 0.1 M KCl. The effect of the protein on Ca2+-induced Ca2+ release is completely inhibited by the calcium release blocker, ruthenium red.
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