Anti-Aqp2 Antibody Picoband®

SKU: A00935

Size: 100 μg

Storage: At -20℃ for one year from date of receipt. After reconstitution, at 4℃ for one month. It can also be aliquotted and stored frozen at -20℃ for six months. Avoid repeated freezing and thawing.

Form: Lyophilized

Reactivity: Mouse,Rat

Applications: WB,Flow Cytometry,ELISA

Application Details: Western blot, 0.25-0.5 μg/ml, Mouse, Rat
Flow Cytometry (Fixed), 1-3 μg/1x10⁶ cells, Mouse
ELISA, 0.1-0.5 μg/ml, -

Gene Name: Aqp2

Specificity:

Background: AQP2 (Aquaporin 2), also called AQUAPORIN-CD, is found in the apical cell membranes of the kidney's collecting duct principal cells and in intracellular vesicles located throughout the cell. The AQP2 gene is mapped to chromosome 12q13, very close to the site of major intrinsic protein by situ hybridization. The investigators suggested that a defect in the AQP2 gene is the basis of the autosomal form of nephrogenic diabetes insipidus. The functional expression and the limited localization suggested that AQP2 is the vasopressin-regulated water channel. Using rat kidney slices and porcine kidney cells stably expressing rat Aqp2, AQP2 trafficking can be stimulated by cAMP-independent pathways that utilize nitric oxide (NO). The NO donors sodium nitroprusside (SNP) and NONOate and the NO synthase substrate L-arginine mimicked the effect of vasopressin (VP), stimulating relocation of Aqp2 from cytoplasmic vesicles to the apical plasma membrane. SNP increased intracellular cGMP rather than cAMP, and exogenous cGMP stimulated AQP2 membrane insertion. Atrial natriuretic factor, which signals via cGMP, also stimulated AQP2 translocation. AQP2 expression in kidney connecting tubules is sufficient for survival and that AQP2 expression in collecting ducts is required to regulate body water balance. The S256L substitution in the cytoplasmic tail of the Aqp2 protein prevented phosphorylation at S256 and the subsequent accumulation of Aqp2 on the apical membrane of the collecting duct principal cells.

Immunogen: E.coli-derived mouse Aqp2 recombinant protein (Position: A102-A271). Mouse Aqp2 shares 87.6% and 98.2% amino acid (aa) sequence identity with human and rat Aqp2, respectively.

Clonality: Polyclonal

Contents: Each vial contains 4 mg Trehalose, 0.9 mg NaCl, 0.2 mg Na2HPO4.

Purification: Immunogen affinity purified.

Reconstitution: Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.

Reference: 1. Bouley, R., Breton, S., Sun, T., McLaughlin, M., Nsumu, N. N., Lin, H. Y., Ausiello, D. A., Brown, D. Nitric oxide and atrial natriuretic factor stimulate cGMP-dependent membrane insertion of aquaporin 2 in renal epithelial cells. J. Clin. Invest. 106: 1115-1126, 2000. 2. Canfield, M. C., Tamarappoo, B. K., Moses, A. M., Verkman, A. S., Holtzman, E. J. Identification and characterization of aquaporin-2 water channel mutations causing nephrogenic diabetes insipidus with partial vasopressin response. Hum. Molec. Genet. 6: 1865-1871, 1997. 3. Deen, P. M. T., Croes, H., van Aubel, R. A. M. H., Ginsel, L. A., van Os, C. H. Water channels encoded by mutant aquaporin-2 genes in nephrogenic diabetes insipidus are impaired in their cellular routing. J. Clin. Invest. 95: 2291-2296, 1995.

Uniprot ID: P56402

Host: Rabbit

Concentration: Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.

Conjugate:

Cross Reactivity: No cross reactivity with other proteins.

Isotype: IgG

Phospho_site:

Clone Number:

Observed Molecular Weight: 26 kDa

Calculated Molecular Weight: 52588 MW

Gene ID: 11827

Protein Name: Aquaporin-2

Gene Full Name: aquaporin 2

Synonyms: Aqp2; cph; Aquaporin-2; AQP-2; ADH water channel; Aquaporin-CD; AQP-CD; Collecting duct water channel protein; WCH-CD; Water channel protein for renal collecting duct