Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry, Western Blot, Flow Cytometry, Immunocytochemistry, Immunoprecipitation, CyTOF-reported

Label

DyLight 594 (Excitation = 593 nm, Emission = 618 nm)

Antibody Source

Polyclonal Goat IgG
View all Carbonic Anhydrase IX/CA9 Primary Antibodies »

Product Specifications

Immunogen

Mouse myeloma cell line NS0-derived recombinant human Carbonic Anhydrase IX
Pro59-Asp414
Accession # Q16790

Specificity

Detects human Carbonic Anhydrase IX (CA9) in direct ELISAs and Western blots. In direct ELISAs, approximately 10% cross-reactivity with recombinant mouse CA9 is observed and less than 1% cross-reactivity with recombinant human CA1, 3, 4, 8, 10, 12, and 14 is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Applications for Carbonic Anhydrase IX/CA9 Antibody [DyLight 594]

Application
Recommended Usage

CyTOF-reported

Optimal dilutions of this antibody should be experimentally determined.

Flow Cytometry

Optimal dilutions of this antibody should be experimentally determined.

Immunocytochemistry

Optimal dilutions of this antibody should be experimentally determined.

Immunohistochemistry

Optimal dilutions of this antibody should be experimentally determined.

Immunoprecipitation

Optimal dilutions of this antibody should be experimentally determined.

Western Blot

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Spectra Viewer

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Flow Cytometry Panel Builder

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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Formulation

50mM Sodium Borate

Preservative

0.05% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C in the dark.

Background: Carbonic Anhydrase IX/CA9

Carbonic anhydrase alpha, isozyme IX, belongs to a family of zinc-containing metalloproteins which hydrate carbon dioxide to generate bicarbonate ions and protons (1). This main catalytic function allows carbonic anhydrase IX to participate in cellular pH regulation. The large family of carbonic anhydrase metalloproteins includes three major classes which have been identified based on sequence and structure analysis. The alpha class is a monomer found in mammals. The beta class may occur as a dimer, tetramer, hexamer or octamer and is found in plants, algae, and bacteria. Lastly, the gamma class is a trimer found in bacteria and represents the most ancient carbonic anhydrase. These three classes of carbonic anhydrase enzymes lack sequence or structural similarities, but all share a conserved active site zinc atom (1).

Carbonic anhydrase IX (theoretical molecular weight 50kDa) belongs to the monomeric alpha class and is a single pass-transmembrane protein with two extracellular domains which serve catalytic and cell adhesion functions (2, 3). By cooperating with sodium bicarbonate cotransporters (NBC), lactate and proton exporting monocarboxylic acid transporters (MCT), and a sodium/hydrogen exchanger (NHE), carbonic anhydrase IX is involved in pH regulation across the cell membrane. This functional property protects cancer cells from intracellular acidification and partly explains the role of carbonic anhydrase IX in cancer cell survival and proliferation. In contrast, the pH regulating activity of carbonic anhydrase IX induces extracellular acidification, which has been implicated in epithelial to mesenchymal transition (EMT) and promoting cancer invasion. Carbonic anhydrase IX is frequently overexpressed in cancer cells (e.g., colorectal-, breast-, lung-carcinoma and brain tumors), an effect promoted by hypoxia within the tumor microenvironment (4). An exception are tumors carrying pVHL inactivating mutations, such as clear cell renal cell carcinoma (ccRCC), where HIF-alpha is stabilized due to dysfunctional proteasomal targeting and can induce HRE (Hypoxia Response Element) containing genes even under physiological normoxia (5). Carbonic anhydrase IX may be detected by immunostaining in tumors, which is found in association with necrotic tissue and metastatic cells. Because the expression of carbonic anhydrase IX correlates with both tumor grade and stage, analysis of its expression in tumors serves as a prognostic factor (4, 6).

References

1. Tripp, B. C., Smith, K., & Ferry, J. G. (2001). Carbonic Anhydrase: New Insights for an Ancient Enzyme. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.R100045200

2. Nishimori, I., & Onishi, S. (2001). Carbonic anhydrase isozymes in the human pancreas. Digestive and Liver Disease. https://doi.org/10.1016/s1590-8658(01)80138-9

3. Zavadova, Z., & Zavada, J. (2005). Carbonic anhydrase IX (CA IX) mediates tumor cell interactions with microenvironment. Oncology Reports. https://doi.org/10.3892/or.13.5.977

4. Pastorekova, S., & Gillies, R. J. (2019). The role of carbonic anhydrase IX in cancer development: links to hypoxia, acidosis, and beyond. Cancer and Metastasis Reviews. https://doi.org/10.1007/s10555-019-09799-0

5. Haase, V. (2009). The VHL Tumor Suppressor: Master Regulator of HIF. Current Pharmaceutical Design. https://doi.org/10.2174/138161209789649394

6. Young, J. R., Coy, H., Kim, H. J., Douek, M., Sisk, A., Pantuck, A. J., & Raman, S. S. (2018). Association of the gross appearance of intratumoral vascularity at MDCT with the carbonic anhydrase IX score in clear cell renal cell carcinoma. American Journal of Roentgenology. https://doi.org/10.2214/AJR.18.19725

Alternate Names

CA9, G250, MN, RCC

Gene Symbol

CA9

Additional Carbonic Anhydrase IX/CA9 Products

Product Documents for Carbonic Anhydrase IX/CA9 Antibody [DyLight 594]

Certificate of Analysis

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Product Specific Notices for Carbonic Anhydrase IX/CA9 Antibody [DyLight 594]



DyLight (R) is a trademark of Thermo Fisher Scientific Inc. and its subsidiaries.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Related Research Areas

Cancer Biomarkers

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