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Proteins within the intracellular calcium store determine cardiac RyR channel activity and cardiac output

Dulhunty, Angela; Wium, Elize; Li, Linwei; Hanna, Amy; Mirza, Shamaruh; Talukder, Sadik; Ghazali, Nuur; Beard, Nicole

Description

The contractile function of the heart requires the release of Ca2+ from intracellular Ca2+ stores in the sarcoplasmic reticulum (SR) of cardiac muscle cells. The efficacy of Ca2+ release depends on the amount of Ca2+ loaded into the Ca2+ store and the way in which this 'Ca2+ load' influences the activity of the cardiac ryanodine receptor Ca2+ release channel (RyR2). The effects of the Ca2+ load on Ca2+ release through RyR2 are facilitated by: (i) the sensitivity of RyR2 itself to luminal Ca2+...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/54552
Source: Clinical and Experimental Pharmacology and Physiology
DOI: 10.1111/j.1440-1681.2012.05704.x

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