Article
Structure-dynamic basis of splicing-dependent regulation in tissue-specific variants of the sodium-calcium exchanger.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology - 1 Mar 2016
Lee Su Youn, Giladi Moshe, Bohbot Hilla, Hiller Reuben, Chung Ka Young, Khananshvili Daniel
Abstract excerpt
Tissue-specific splice variants of Na(+)/Ca(2+) exchangers contain 2 Ca(2+)-binding regulatory domains (CBDs), CBD1 and CBD2. Ca(2+) interaction with CBD1 activates sodium-calcium exchangers (NCXs), and Ca(2+) binding to CBD2 alleviates Na(+)-dependent inactivation. A combination of mutually exclusive (A, B) and cassette (C-F) exons in CBD2 raises functionally diverse splice variants through unknown mechanisms....
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