AQP2 antibody (pSer261)

Catalog No. ABIN361469

Product Details anti-AQP2 Antibody

Target: AQP2 (Aquaporin 2 (Collecting Duct) (AQP2))

Binding Specificity: pSer261

Reactivity: Rat

Host: Rabbit

Clonality: Polyclonal

Conjugate: This AQP2 antibody is un-conjugated

Application: Western Blotting (WB), Immunohistochemistry (IHC)

Specificity: Specific for ~29k AQP2 protein phosphorylated at Ser261. Also recognizes the glycosylated form of AQP2 at ~ 37k. Immunolabeling of the AQP2 band is blocked by preadsorption with the phospho-peptide used as antigen but not by the corresponding dephospho-peptide.

Cross-Reactivity: Mouse (Murine), Rat (Rattus)

Predicted Reactivity: bovine, canine, chicken, human, non-human primate

Purification: Antigen Affinity Purified from Pooled Serum

Immunogen: Synthetic phospho-peptide corresponding to amino acid residues surrounding Ser261 conjugated to KLH

Application Details

Application Notes: Recommended Dilution: WB: 1:1000 Quality Control: Western blots performed on each lot.

Restrictions: For Research Use only

Handling

Format: Liquid

Buffer: 100 μL in 10 mM HEPES (  pH 7.5), 150 mM NaCl, 100 μg per ml BSA and 50 % glycerol.

Storage: -20 °C

References for anti-AQP2 antibody (ABIN361469)

Hoffert, Fenton, Moeller, Simons, Tchapyjnikov, McDill, Yu, Pisitkun, Chen, Knepper: "Vasopressin-stimulated increase in phosphorylation at Ser269 potentiates plasma membrane retention of aquaporin-2." in: The Journal of biological chemistry, Vol. 283, Issue 36, pp. 24617-27, (2008) (PubMed).

Hoffert, Nielsen, Yu, Pisitkun, Schleicher, Nielsen, Knepper: "Dynamics of aquaporin-2 serine-261 phosphorylation in response to short-term vasopressin treatment in collecting duct." in: American journal of physiology. Renal physiology, Vol. 292, Issue 2, pp. F691-700, (2007) (PubMed).

Target Details for AQP2

Target: AQP2 (Aquaporin 2 (Collecting Duct) (AQP2))

Alternative Name: AQP2 (AQP2 Products)

Synonyms: AQP-CD antibody, WCH-CD antibody, cph antibody, jpk antibody, AQP-2 antibody, aquaporin-2 antibody, aquaporin 2 antibody, aquaporin 2 (collecting duct) antibody, Aqp2 antibody, AQP2 antibody

Background: Aquaporin 2 (AQP2) is a hormonally regulated water channel located in the renal collecting duct. Mutations in the AQP2 gene cause hereditary nephrogenic diabetes insipidus in humans (Iolascon et al.,2007). A vasopressin induced cAMP increase results in the phosphorylation of AQP2 at serine-256 and its translocation from the intracellular vesicles to the apical membrane of principal cells (van Balkom et al., 2002). Recently, serine-261 has been identified as a novel phosphorylation site on AQP2 and levels of phosphorylated S261 have been shown to decrease with vasopressin treatment suggesting its involvement in vasopressin-dependent AQP2 trafficking (Hoffert et al., 2007). Anti-Phospho-Ser261 Aquaporin 2 Western blot of rat kidney lysate showing specific immunolabeling of the ~ 29k and 37k glycosylated form of the AQP2 protein phosphorylated at Ser261. Immunolabeling is blocked by the phospho-peptide used as antigen (peptide) but not by the corresponding dephospho-peptide (not shown).

Molecular Weight: 29/37 kDa

Gene ID: 25386

UniProt: P34080

Pathways: Response to Water Deprivation