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07-2270 Anti-WNK4 Antibody

This WNK4 antibody is validated for use in WB & IHC for the detection of the WNK4 protein.

Anti-WNK4 Antibody MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.
Research Category: Signaling Research Sub-Category: Kinases & Phosphatases Gene Symbol: WNK4, PRKWNK4 UniProt Number: Q96J92
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07-2270
100 µg  
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Key Spec Table

Species ReactivityKey ApplicationsHostFormatAntibody Type
H, M, RWB, IH(P)RbAffinity PurifiedPolyclonal Antibody
Description
Catalogue Number07-2270
DescriptionAnti-WNK4 Antibody
Alternate Names
  • Serine/threonine-protein kinase WNK4
  • Protein kinase lysine-deficient 4
  • Protein kinase with no lysine 4
Background InformationWNK4 is a serine-threonine protein kinase that is commonly expressed in the distal nephron. Mutations in WNK1 and WNK4 cause pseudohypoaldosteronism type II, which causes hypertension, hyperkalemia, hyperchloremia and metabolic acidosis. WNK4 has been shown to decrease Na-Cl cotransporter activity and the potassium channel by removing it from the cell surface. It is thought that activating WNK4 inhibits the activity of WNK1. WNK4 has been shown to play a role in regulating blood pressure in addition to potassium homeostasis.
References
Product Information
FormatAffinity Purified
Control
  • Mouse kidney cell lysate
PresentationPurified rabbit polyclonal in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
Quality LevelMQ100
Applications
ApplicationThis WNK4 antibody is validated for use in WB & IHC for the detection of the WNK4 protein.
Key Applications
  • Western Blotting
  • Immunohistochemistry (Paraffin)
Application NotesImmunohistochemistry Analysis: 1:1,000 dilution from a previous lot detected WNK4 in normal human kidney tissue.
Biological Information
ImmunogenKLH-conjugated linear peptide corresponding to human WNK4 at the C-terminus.
EpitopeC-terminus
ConcentrationPlease refer to the Certificate of Analysis for the lot-specific concentration.
HostRabbit
SpecificityThis antibody recognizes WNK4 at the C-terminus.
Species Reactivity
  • Human
  • Mouse
  • Rat
Species Reactivity NoteDemonstrated to react with human and mouse. Predicted to react with rat based on 100% sequence homology.
Antibody TypePolyclonal Antibody
Entrez Gene Number
Entrez Gene SummaryThis gene encodes a member of the WNK family of serine-threonine protein kinases. The kinase is part of the tight junction complex in kidney cells, and regulates the balance between NaCl reabsorption and K(+) secretion. The kinase regulates the activities of several types of ion channels, cotransporters, and exchangers involved in electrolyte flux in epithelial cells. Mutations in this gene result in pseudohypoaldosteronism type IIB.
Gene Symbol
  • WNK4
  • PRKWNK4
Purification MethodAffinity Purfied
UniProt Number
UniProt SummaryFUNCTION: Regulates the activity of the thiazide-sensitive Na-Cl cotransporter, SLC12A3, by phosphorylation which appears to prevent membrane trafficking of SLC12A3. Also inhibits the renal K+ channel, KCNJ1, via a kinase-independent mechanism by which it induces clearance of the protein from the cell surface by clathrin-dependent endocytosis. WNK4 appears to act as a molecular switch that can vary the balance between NaCl reabsorption and K+ secretion to maintain integrated homeostasis (By similarity).

CATALYTIC ACTIVITY: ATP + a protein = ADP + a phosphoprotein.

COFACTOR: Magnesium (By similarity).

ENZYME REGULATION: Activation requires autophosphorylation of Ser-335. Phosphorylation of Ser-331 also promotes increased activity (By similarity).

SUBUNIT STRUCTURE: Interacts with the C-terminal region of KCNJ1 (By similarity).

SUBCELLULAR LOCATION: Cell junction › tight junction By similarity. Note: Present exclusively in intercellular junctions in the distal convoluted tubule and in both the cytoplasm and intercellular junctions in the cortical collecting duct. WNK4 is part of the tight junction complex (By similarity).

TISSUE SPECIFICITY: Expressed in kidney, colon and skin.

INVOLVEMENT IN DISEASE: Defects in WNK4 are a cause of pseudohypoaldosteronism type II (PHAII) [MIM:145260]. PHAII is an autosomal dominant disease characterized by severe hypertension, hyperkalemia, and sensitivity to thiazide diuretics which may result from a chloride shunt in the renal distal nephron.

SEQUENCE SIMILARITIES: Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. WNK subfamily.

Contains 1 protein kinase domain.

CAUTION: Cys-203 is present instead of the conserved Lys which is expected to be an active site residue. Lys-186 appears to fulfill the required catalytic function. UniProtKB Q9JIH7

SEQUENCE CAUTION: The sequence BAC04669.1 differs from that shown. Reason: Erroneous initiation.

The sequence CAC48387.1 differs from that shown. Reason: Frameshift at position 4.
Molecular Weight~160 kDa observed. This protein has 3 isoforms produced by alternative splicing. Hengl, T., et al. (2010). PNAS. 107(13):6052–6057.
Physicochemical Information
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
Safety Information
Product Usage Statements
Quality AssuranceEvaluated by Western Blot in mouse kidney cell lysate.

Western Blot Analysis: 0.05 µg/mL of this antibody detected WNK4 on 10 µg of mouse kidney cell lysate.
Usage Statement
  • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Storage and Shipping Information
Storage ConditionsStable for 1 year at 2-8°C from date of receipt.
Packaging Information
Material Size100 µg
Transport Information
Supplemental Information
Specifications
Global Trade Item Number
Catalogue Number GTIN
07-2270 04053252682810