Technical Data
Aquaporin 2 (AQP2, AQP-CD, WCH-CD) (Biotin)
Water is a critical component of all living cells. Interestingly, tissue membranes show a great degree of water permeability. Mammalian red cells, renal proximal tubules, and descending thin limb of Henle are extraordinarily permeable to water. Water crosses hydrophobic plasma membranes either by simple diffusion or through a facilitative transport mechanism mediated by special protein “aquaporin”. Over the last decade, genes for several members of aquaporin family (AQP1-9 and AQPQP) have been cloned, expressed, and their distribution studied in many tissues.
AQP2 or AQP-CD or WCH-CD (mouse, rat, human 271aa; human gene locus 12q13) is the vasopressin-regulated water channel of the apical membrane of collecting duct cells. AQP families of proteins are predicted to contain six transmembrane domains. The N and C-termini are predicted to be cytoplasmic. Defects in AQP2 are a cause of an autosomal dominant form of nephrogenic diabetes insipidus (NDI).

Suitable for use in ELISA and Western Blot. Other applications not tested.

Recommended Dilution:
Western Blot: 1-10ug/ml using Chemiluminescence.
ELISA: 0.5-1ug/ml.
Optimal dilutions to be determined by the researcher.

Control Peptide: A3000-07D

Storage and Stability:
May be stored at 4°C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and add glycerol (40-50%). Freeze at -20°C. Aliquots are stable for at least 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
PabIgGAffinity Purified
50ug4°C (-20°C Glycerol)Blue IceMouseRabbit
A 19aa synthetic peptide sequence corresponding to the N-terminal, extracellular domain of mouse AQP2.
Purified by immunoaffinity chromatography.
Supplied as a liquid in PBS, pH 7.2. No preservative and no stabililizing protein added. Labeled with Biotin.
Recognizes mouse AQP2 at ~30kD. Species Sequence Homology: Rat-100%, sheep-78%, human -73%.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
1. Fushimi K, et al (1993) Nature 361, 549-552. 2. Nielsen, S et al (1993) PNAS 90, 11663-11667. 3. Deen, PMT et al (1995) J. Clin. Invest. 95, 2291-2296. 4. Sasaki, S et al (1994) J. Clin. Invest. 93, 1250-1256.