6Z3Z:
reference: Structure and elevator mechanism of the mammalian sodium/proton exchanger NHE9., Winkelmann I, Matsuoka R, Meier PF, Shutin D, Zhang C, Orellana L, Sexton R, Landreh M, Robinson CV, Beckstein O, Drew D, EMBO J. 2020 Oct 29:e105908. doi: 10.15252/embj.2020105908. PMID: 33118634

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