4A82:
reference: The Cystic Fibrosis Transmembrane Conductance Regulator (CFTR): THREE-DIMENSIONAL STRUCTURE AND LOCALIZATION OF A CHANNEL GATE., Rosenberg MF, O'Ryan LP, Hughes G, Zhao Z, Aleksandrov LA, Riordan JR, Ford RC, J Biol Chem. 2011 Dec 9;286(49):42647-54. Epub 2011 Sep 19. PMID: 21931164

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