Serine/threonine-protein kinase WNK1 (WNK1)

Serine/threonine kinase which plays an significant role in the regulation of electrolyte homeostasis, cell signaling, survival, and proliferation. Activates SCNN1A, SCNN1B, SCNN1D and SGK1.

Controls sodium and chloride ion transport by inhibiting the activity of WNK4, by either phosphorylating the kinase or via an interaction between WNK4 and the autoinhibitory domain of WNK1. WNK4 regulates the activity of the thiazide- sensitive Na-Cl cotransporter, SLC12A3, by phosphorylation.