Application
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).| Product Name | Aquaporin 2 (phospho Ser261) Antibody |
|---|---|
| Antibody Type | Primary Antibodies |
| Antigen Alias | AQP-2, aquaporin-2, ADH water channel, AQP-2 |
| Product description | 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).1) van Balkom BW, Savelkoul PJ, Markovich D, Hofman E, Nielsen S, van der Sluijs P, Deen PM (2002) The role of putative phosphorylation sites in the targeting and shuttling of the aquaporin 2 water channel. J Biol Chem 277(44):41473-9. |
| Immunogen | Phosphopeptide corresponding to amino acid residues surrounding the phospho-Ser261 of rat aquaporin 2. |
| Modification | p-Ser261 |
| Clonality | Polyclonal |
|---|---|
| Host Species | Rabbit |
| Tested Applications | IHCWB |
| The antibody has been directly tested for reactivity in Western blots with rat tissue. It is anticipated that the antibody will react with canine, bovine, chicken, human, mouse and non-human primate tissues based on the fact that these species have 100% homology with the amino acid sequence used as antigen.: |
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| Species Reactivity | BovineChickenDogHumanMouseRat |
| Concentration | 1mg/ml |
| Purification | Affinity purified |
| Gene Symbol | Aqp2 |
|---|---|
| Alternative Names | AQP-2 aquaporin-2 ADH water channel AQP-2 |
| Molecular Weight(MW) | 29/37 |
Application
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).| Application Notes | The antibody has been directly tested for reactivity in Western blots with rat tissue. It is anticipated that the antibody will react with canine, bovine, chicken, human, mouse and non-human primate tissues based on the fact that these species have 100% homology with the amino acid sequence used as antigen.: |
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| Form | Liquid |
|---|---|
| Storage Instructions | Aquaporin 2 antibody can be stored at -20˚C and is stable at -20˚C for at least 1 year. |
| Storage Buffer | 100 uL in 10 mM HEPES (pH 7.5), 150 mM NaCl, 100 ug per mL BSA and 50% glycerol. |
