Detects human Carbonic Anhydrase IX (CA9) in direct ELISAs. In direct ELISAs, this antibody does not cross-react with recombinant mouse (rm) CA9 or with rhCA1, 2, 3, 4, 5A, 6, 7, 8, 10, 12, 13, or 14.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG_2A

Scientific Data Images for Human Carbonic Anhydrase IX/CA9 Antibody

Detection of Carbonic Anhydrase IX/CA9 in U87-MG cells by Flow Cytometry.

U87-MG cells were stained with Mouse Anti-Human Carbonic Anhydrase IX/CA9 Monoclonal Antibody (Catalog # MAB2188, filled histogram) or isotype control antibody (Catalog # MAB003, open histogram), followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B). View our protocol for Staining Membrane-associated Proteins.

Applications for Human Carbonic Anhydrase IX/CA9 Antibody

Application

Recommended Usage

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Flow Cytometry

0.25 µg/10⁶ cells
Sample: U-87 MG human glioblastoma/astrocytoma cells

Immunoprecipitation

25 µg/mL
Sample: Conditioned cell culture medium spiked with Recombinant Human Carbonic Anhydrase IX (Catalog # 2188-CA), see our available Western blot detection antibodies

Human Carbonic Anhydrase IX Sandwich Immunoassay

ELISA Capture (Matched Antibody Pair)

Recommended Concentration: 2-8 µg/mL
Use in combination with these reagents:

Detection Reagent: Human Carbonic Anhydrase IX/CA9 Biotinylated Antibody (Catalog # BAF2188)
Standard: Recombinant Human Carbonic Anhydrase IX Protein, CF (Catalog # 2188-CA)

Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

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 (1-3). Topics in the CA meeting (6^th International Conference on the CAs, June 20-25, 2003; 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. 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 (4, 5). rhCA9 corresponds to the extracellular portion of human CA9.

References

Pastorek, J. et al. (1994) Oncogene 9:2877.
Opavsky, R. et al. (1996) Genomics 33:480.
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.

Alternate Names

CA9, G250, MN, RCC

Entrez Gene IDs

768 (Human); 230099 (Mouse)

Gene Symbol

CA9

UniProt

Q16790

Additional Carbonic Anhydrase IX/CA9 Products

Product Documents for Human Carbonic Anhydrase IX/CA9 Antibody

Product Datasheets

Download Product Datasheets

COA

SDS

Download SDS

Product Specific Notices for Human Carbonic Anhydrase IX/CA9 Antibody

For research use only

Citations
Reviews

Calculators
Flow Cytometry

Human Carbonic Anhydrase IX/CA9 Antibody

R&D Systems, part of Bio-Techne | Catalog # MAB2188

Key Product Details

Species Reactivity

Validated:

Cited:

Applications