Tested Applications
| Positive WB detected in | A549 cells |
| Positive IHC detected in | human stomach cancer tissue Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0 |
Recommended dilution
| Application | Dilution |
|---|---|
| Western Blot (WB) | WB : 1:1000-1:6000 |
| Immunohistochemistry (IHC) | IHC : 1:50-1:500 |
| It is recommended that this reagent should be titrated in each testing system to obtain optimal results. | |
| Sample-dependent, Check data in validation data gallery. | |
Published Applications
| KD/KO | See 1 publications below |
| WB | See 23 publications below |
| IHC | See 26 publications below |
| IF | See 9 publications below |
Product Information
11071-1-AP targets Carbonic Anhydrase IX/CA9 in WB, IHC, IF, ELISA applications and shows reactivity with human, mouse, rat samples.
| Tested Reactivity | human, mouse, rat |
| Cited Reactivity | human, mouse |
| Host / Isotype | Rabbit / IgG |
| Class | Polyclonal |
| Type | Antibody |
| Immunogen | Carbonic Anhydrase IX/CA9 fusion protein Ag1540 Predict reactive species |
| Full Name | carbonic anhydrase IX |
| Calculated Molecular Weight | 459 aa, 50 kDa |
| Observed Molecular Weight | 50 kDa, 60-70 kDa |
| GenBank Accession Number | BC014950 |
| Gene Symbol | CA9 |
| Gene ID (NCBI) | 768 |
| RRID | AB_2066528 |
| Conjugate | Unconjugated |
| Form | Liquid |
| Purification Method | Antigen affinity purification |
| UNIPROT ID | Q16790 |
| Storage Buffer | PBS with 0.02% sodium azide and 50% glycerol, pH 7.3. |
| Storage Conditions | Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. 20ul sizes contain 0.1% BSA. |
Background Information
CA9 (Carbonic anhydrase 9) may be involved in the control of cell proliferation and transformation and appears to be a novel specific biomarker for a cervical neoplasia (PMID:18703501). It is a tumor-associated antigen that has been shown to have diagnostic utility in identifying cervical dysplasia and carcinoma. The protein is present in the cytoplasmic membrane and the nucleus, with a molecular weight of 50 kDa. The molecular weight of the glycosylated form is approximately 60-70 kDa. (PMID: 31142270, PMID: 31819036)
Protocols
| Product Specific Protocols | |
|---|---|
| WB protocol for Carbonic Anhydrase IX/CA9 antibody 11071-1-AP | Download protocol |
| IHC protocol for Carbonic Anhydrase IX/CA9 antibody 11071-1-AP | Download protocol |
| Standard Protocols | |
|---|---|
| Click here to view our Standard Protocols |
Publications
| Species | Application | Title |
|---|---|---|
Proc Natl Acad Sci U S A CRLX101 nanoparticles localize in human tumors and not in adjacent, nonneoplastic tissue after intravenous dosing. | ||
Cell Commun Signal KCNJ2/HIF1α positive-feedback loop promotes the metastasis of osteosarcoma | ||
Biomed Pharmacother Para-toluenesulfonamide, a novel potent carbonic anhydrase inhibitor, improves hypoxia-induced metastatic breast cancer cell viability and prevents resistance to αPD-1 therapy in triple-negative breast cancer | ||
Oxid Med Cell Longev Carbonic Anhydrase IX Controls Vulnerability to Ferroptosis in Gefitinib-Resistant Lung Cancer | ||
Oxid Med Cell Longev Targeting the Ang2/Tie2 Axis with Tanshinone IIA Elicits Vascular Normalization in Ischemic Injury and Colon Cancer. | ||
Eur J Nucl Med Mol Imaging In vivo three-dimensional evaluation of tumour hypoxia in nasopharyngeal carcinomas using FMT-CT and MSOT. |
Reviews
The reviews below have been submitted by verified Proteintech customers who received an incentive for providing their feedback.
FH Aline Seiko (Verified Customer) (05-12-2025) | It was observed a 70kDa and 25kDa isoform.
|
FH Maelle (Verified Customer) (01-03-2025) | Lost efficacy after freeze-defreze even if it is in glycerol
|
FH Josh (Verified Customer) (10-28-2021) | 15 ug of human clear cell renal cell carcinoma cell line RCC4 was resolved on 15% Tris/Glycine and transferred to PVDF membrane. Membrane was blocked in blocking buffer (2% BSA in TBS/0.1% Tween-20) for 1hr at room temperature, followed by overnight incubation with anti-CA9 (1:1000) in blocking buffer at 4oC. After 1hr incubation with anti-Rabbit secondary antibody, membrane was imaged with ECL. Expected band was detected along with several non-specific bands by western blot
 |
FH K (Verified Customer) (08-03-2021) | total cell lysate (50 ug of human HCC cell lines) was resolved on 10% Bis-Tris gel and transferred to nitrocellulose membrane. Membrane was incubated in blocking buffer (5% BSA in TBS/0.1% Tween-20) for 1h. Membrane was incubated with anti-CA9 in blocking buffer (1:500) at 40C overnight. After 1h incubation with appropriate secondary antibody (anti-Rabbit 1:5000) membranes were imaged with ECL and expected band was detected.
 |
FH Paulo (Verified Customer) (03-04-2019) | Total cell lysate (50 ug of human ccRCC cell lines) was resolved on 10% Bis-Tris gel and transferred to PVDF membrane. Membrane was incubated in blocking buffer (5% milk in PBS/0.1% Tween-20) for 1h. Membrane was incubated with anti-CAIX in blocking buffer (1:250) at 4C overnight. After 1h incubation with appropriate secondary antibody (DAKO anti-Rabbit 1:10000) membranes were imaged with ECL and expected band was detected
|
