3OUF:
reference: Tuning the ion selectivity of tetrameric cation channels by changing the number of ion binding sites., Derebe MG, Sauer DB, Zeng W, Alam A, Shi N, Jiang Y, Proc Natl Acad Sci U S A. 2010 Dec 27. PMID: 21187421

This OCA Structure page
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