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You are here:Home » Antibodies » Abs to Aquaporin » Anti -Aquaporin 9 (AQP9)

Anti -Aquaporin 9 (AQP9)

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Specifications

Clone Host Grade Applications
Polyclonal Chicken Affinity Purified E B IP
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 have been cloned, expressed, and their distribution studied in many tissues. Aquaporin-0 or MIP26 (major intrinsic protein 26kD), and Aquaporin-1 (purified from red cells) also called CHIP-28 (channel forming integral protein, 28kD; 268aa; gene locus 7p14) has been the foundation of the growing family of aquaporins. The lens specific Aquaporin-0 represents up to 80% of total lens membrane protein. Defects in MIP26 are a cause of autosomal dominant cataract. The cataract Fraser mutation (CAT-FR or Shriveled) is a transposon-induced splicing error that substitutes a long terminal repeat sequence for the c-terminus of MIP. The lens opacity mutation (LOP) is an aa substitution that inhibits targeting of MIP to the cell membrane. A new member of AQP family, Aquaporin-9 (AQP9), has been cloned from human leukocytes by homology cloning (1). It is mostly homologous with AQP3 and AQP7 (54-48% identity). AQP9 (295aa) is primarily expressed in peripheral leukocytes, and lesser amounts in liver, lung and spleen. AQP9 is permeable to water and urea. Unlike AQP3 and AQP7, it did not facilitate glycerol transport. AQP families of proteins are predicted to contain six transmembrane domains. The N and C-terminus are predicted to be cytoplasmic.
Catalog #A3000-41
ApplicationsSuitable for use in ELISA, Western Blot and Immunoprecipitation. Other applications not tested.
Recommended DilutionELISA: 1:1000–1:100,000. Using 50-100ng control peptide/well. See A3000-60: Aquaporin 9, Rat, Control Peptide (AQP9).
Western Blot: 1-10ug/ml (ECL)
Optimal dilutions to be determined by the researcher.
Storage and StabilityMay be stored at 4°C for short-term only. For long-term storage, aliquot and store at -20°C. Aliquots are stable for at least 12 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.
Clone TypePolyclonal
IsotypeIgG
HostChicken
SourceRat
Concentration~1mg/ml
FormSupplied as a liquid in PBS, pH 7.4, 0.1% BSA, 40% glycerol.
PurityPurified by immunoaffinity chromatography.
ImmunogenSynthetic peptide consisting of 18aa within the C-terminal domain of rat AQP9 (KLH coupled). This domain is predicted to be cytoplasmic.
SpecificityRecognizes Aquaporin 9 (AQP9). The peptide is unique to Aquaporin 9 without significant homology to any other Aquaporins. Species Sequence Homology
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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