Rabbit anti-Human WNK1 Polyclonal Antibody

Uniprot Id

Q9H4A3

Target Species

Human

Target Name

WNK1

Target Full Name

Serine/threonine-protein kinase WNK1

Target Function

Serine/threonine kinase which plays an important role in the regulation of electrolyte homeostasis, cell signaling, survival, and proliferation. Acts as an activator and inhibitor of sodium-coupled chloride cotransporters and potassium-coupled chloride cotransporters respectively. 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. WNK1 may also play a role in actin cytoskeletal reorganization. Phosphorylates NEDD4L. Acts as a scaffold to inhibit SLC4A4, SLC26A6 as well as CFTR activities and surface expression, recruits STK39 which mediates the inhibition.; Dominant-negative regulator of the longer isoform 1. Does not have kinase activity, does not directly inhibit WNK4 and has no direct effect on sodium and chloride ion transport. Downregulates sodium-chloride cotransporter activity indirectly by inhibiting isoform 1, it associates with isoform 1 and attenuates its kinase activity. In kidney, may play an important role regulating sodium and potassium balance.

Target Involvement

Pseudohypoaldosteronism 2C (PHA2C); Neuropathy, hereditary sensory and autonomic, 2A (HSAN2A)

Target Subcellular Location

Cytoplasm.

Target Protein Families

Protein kinase superfamily, Ser/Thr protein kinase family, WNK subfamily

Target Tissue Specificity

Widely expressed, with highest levels observed in the testis, heart, kidney and skeletal muscle. Isoform 3 is kidney-specific and specifically expressed in the distal convoluted tubule (DCT) and connecting tubule (CNT) of the nephron.

Target Synonyms

Erythrocyte 65 kDa protein; HSAN2; HSN2; hWNK1; KDP; KIAA0344; Kinase deficient protein; MGC163339; MGC163341; p65; PPP1R167; PRKWNK1; Prostate derived sterile 20 like kinase; Protein kinase lysine deficient 1; Protein kinase lysine-deficient 1; Protein kinase with no lysine 1; Protein phosphatase 1, regulatory subunit 167; PSK; Serine/threonine protein kinase WNK1 1; Serine/threonine protein kinase WNK1 2; Serine/threonine protein kinase WNK1; Serine/threonine-protein kinase WNK1; With no K; WNK lysine deficient protein kinase 1; WNK lysine deficient protein kinase 1 isoform; WNK1; WNK1_HUMAN

Target Background

This gene encodes a member of the WNK subfamily of serine/threonine protein kinases. The encoded protein may be a key regulator of blood pressure by controlling the transport of sodium and chloride ions. Mutations in this gene have been associated with pseudohypoaldosteronism type II and hereditary sensory neuropathy type II. Alternatively spliced transcript variants encoding different isoforms have been described but the full-length nature of all of them has yet to be determined.