Aquaporin 2 (Ser261) Antibody

Product Specifications

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)

Synonyms

ADH water channel antibody, AQP 2 antibody, AQP CD antibody, AQP-2 antibody, AQP-CD antibody, AQP2 antibody, AQP2_HUMAN antibody, AQPCD antibody, Aquaporin 2 collecting duct antibody, Aquaporin CD antibody, Aquaporin-2 antibody, Aquaporin-CD antibody, Aquaporin2 antibody, Aquaporine 2 antibody, Collecting duct water channel protein antibody, MGC34501 antibody, Water channel aquaporin 2 antibody, Water channel protein for renal collecting duct antibody, WCH CD antibody, WCH-CD antibody, WCHCD antibody

Gene ID

25386

Swiss Prot

P34080

Modification Site

Ser261

Host

Rabbit

Cross Reactivity

Human, Mouse, Rat

Target

Aquaporin 2 (Ser261)

Clonality

Polyclonal

Isotype

IgG

Conjugation

Unconjugated

Source

Synthetic phospho-peptide corresponding to amino acid residues surrounding Ser261 of rat aquarporin 2, conjugated to keyhole limpet hemocyanin (KLH) .

Applications

WB, IP, IHC

Purification

Antigen Affinity purification from Pooled whole antiserum

Concentration

Lot Dependent

Dilution

WB (1:300-5000), IP (1-2ug), IHC ()

Buffer

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

Modification

Phosphorylation

Storage Conditions

Storage at -20°C is recommended, as aliquots may be taken without freeze/thawing due to presence of 50% glycerol. Stable for at least 1 year at -20°C.

Specificity

Specific for endogenous levels of the ~29 kDa AQP2 protein phosphorylated at Ser261. Also recognizes the glycosylated form of AQP2 at ~37 kDa. Immunolabeling is blocked by preadsorption with the phosphopeptide used as antigen, but not by the corresponding non-phosphopeptide.