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Antagonistic Regulation of Cystic Fibrosis Transmembrane Conductance Regulator ...
Mendes, Ana Isabel; Matos, Paulo; Moniz, Sónia; Luz, Simão; Amaral, Margarida D.; Farinha, Carlos M.; Jordan, PeterMembers of the WNK (with-no-lysine [K]) subfamily of protein kinases regulate various ion channels involved in sodium, potassium, and chloride homeostasis by either inducing their phosphorylation or regulating the number of channel proteins expressed at the cell surface. Here, we describe findings demonstrating that the cell surface expression of the cystic fibrosis transmembrane conductance regulator (CFTR) is...
The contribution of CK2 and spleen tyrosine kinase (SYK) to CFTR trafficking an...
Luz, Simão; Kongsuphol, Patthara; Mendes, Ana Isabel; Romeiras, Francisco; Sousa, Marisa; Schreiber, Rainer; Matos, Paulo; Jordan, Peter; Mehta, AnilPreviously, the pleiotropic “master kinase” casein kinase 2 (CK2) was shown to interact with CFTR, the protein responsible for cystic fibrosis (CF). Moreover, CK2 inhibition abolished CFTR conductance in cell-attached membrane patches, native epithelial ducts, and Xenopus oocytes. CFTR possesses two CK2 phosphorylation sites (S422 and T1471), with unclear impact on its processing and trafficking. Here, we inves...
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