Detects mouse Carbonic Anhydrase IX/CA9 in direct ELISAs and Western blots. In direct ELISAs, approximately 20% cross-reactivity with recombinant human (rh) CA9 is observed, 5% cross-reactivity with recombinant mouse (rm) CA14 is observed, and less than 1% cross‑reactivity with rhCA1, -2, -3, -8, -10, -13, rmCA4, and -12 is observed.
Carbonic Anhydrase IX in Mouse Colon. Carbonic Anhydrase IX was detected in perfusion fixed frozen sections of mouse colon using Goat Anti-Mouse Carbonic Anhydrase IX Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2344) at 1.7 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific labeling was localized to the brush border of epithelial cells in villi. View our protocol for Chromogenic IHC Staining of Frozen Tissue Sections.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Carbonic Anhydrase IX/CA9
Carbonic Anhydrase (CA) catalyzes the reversible reaction of CO2 + H2O = HCO3- + H+, which is fundamental to many processes such as respiration, renal tubular acidification and bone resorption (1). Topics in a CA meeting (6th International Conference on the CAs, June 20-25, 2003, in Slovakia) ranged from use of CAs as markers for tumor and hypoxia in clinic, as nutritional supplement in milk, and as a tool for CO2 removal and mosquito control in industry. Carbonic Anhydrase IX (CA9), also known as membrane antigen MN and renal cell carcinoma (RCC)-associated antigen G250, is a transmembrane enzyme expressed primarily in carcinoma cells. It is one of the best markers for hypoxia and for RCC (2, 3). Recombinant mouse CA9 corresponds to the extracellular portion of mouse CA9.
Hewett-Emmett, D. and R.E. Tashian (1996) Mol. Phylogenet. Evol. 5:50.
Kaluzova, M. et al. (2004) Mol. Cell Biol. 24:5757.
Mukouyama, H. et al. (2004) Clin. Cancer Res. 10:1421.
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but also provides information about sample types, species, and experimental conditions.
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