3RB7:
reference: Structural Basis of the Ca(2+) Inhibitory Mechanism of Drosophila Na(+)/Ca(2+) Exchanger CALX and Its Modification by Alternative Splicing., Wu M, Tong S, Gonzalez J, Jayaraman V, Spudich JL, Zheng L, Structure. 2011 Oct 12;19(10):1509-17. PMID: 22000518

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