Name :
Recombinant Human Carbonic Anhydrase IX/CA9 Protein (ECD, His Tag), HPLC-verified
Biological Activity :
Background :
Carbonic Anhydrases IX (CA IX), also known as membrane antigen MN or CA9, is a member of the Carbonic Anhydrase (CA) family and may be involved in cell proliferation and cellular transformation. CAs are zinc metalloenzymes that catalyze the reversible hydration of carbon dioxide (H2O + CO2 = H+ + HCO3–) and thus participate in a variety of biological and physical processes. CA IX protein is expressed primarily in carcinoma cells lines, and the expression is cell density dependent and has been shown to be strongly induced by hypoxia, accordingly facilitates adaptation of tumor cells to hypoxic conditions. It is involved in tumorigenesis through many pathways, such as pH regulation and cell adhesion control. CA IX is used as a marker of tumor hypoxia and as a new therapeutic target for many human carcinomas and cancers. Cancer Immunotherapy Immune Checkpoint Immunotherapy Targeted Therapy
Biological Activity :
Measured by its esterase activity. The specific activity is >30 pmoles/min/μg, as measured with 1 mM 4-Nitrophenyl acetate and 2.5 μg enzyme at 400 nm in 100 μL of 12.5 mM Tris, 75 mM NaCl, pH 7.5.
Expression Host :
Human
Source :
HEK293 Cells
Tag :
Protein Accession No. :
NP_001207.2
NCBI Gene ID :
Synonyms :
Synonyms :
Carbonic Anhydrase IX
Amino Acid Sequence :
Molecular Weight :
The recombinant human CA9 consists of 388 amino acids and predicts a molecular mass of 42.5 kDa. As a result of glycosylation, rhCA9 migrates with apparent molecular mass of 49.1 kDa in SDS-PAGE under reducing conditions.
Purity :
≥ 90 % as determined by SDS-PAGE. ≥ 90 % as determined by SEC-HPLC.
State of Matter :
Product Concentration :
Storage and Stability :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Endotoxin Level :
< 1.0 EU per μg of the protein as determined by the LAL method
Protein Construction :
A DNA sequence encoding the human Carbonic Anhydrase IX (CA9) (NP_001207.2) (Met1-Asp414) was expressed with a polyhistidine tag at the C-terminus.
Buffer Solution :
Lyophilized from sterile PBS, pH 7.4.Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hardcopy of datasheet.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Redissolution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Synonyms :
CAIX Protein, Human; Carbonic Anhydrase IX Protein, Human; MN Protein, Human Carbonic Anhydrase IX/CA9 背景信息 Carbonic Anhydrases IX (CA IX), also known as membrane antigen MN or CA9, is a member of the Carbonic Anhydrase (CA) family and may be involved in cell proliferation and cellular transformation. CAs are zinc metalloenzymes that catalyze the reversible hydration of carbon dioxide (H2O + CO2 = H+ + HCO3–) and thus participate in a variety of biological and physical processes. CA IX protein is expressed primarily in carcinoma cells lines, and the expression is cell density dependent and has been shown to be strongly induced by hypoxia, accordingly facilitates adaptation of tumor cells to hypoxic conditions. It is involved in tumorigenesis through many pathways, such as pH regulation and cell adhesion control. CA IX is used as a marker of tumor hypoxia and as a new therapeutic target for many human carcinomas and cancers. Cancer Immunotherapy Immune Checkpoint Immunotherapy Targeted Therapy
References & Citations :
Loncaster JA, et al. (2001) Carbonic Anhydrase (CA IX) expression, a potential new intrinsic marker of hypoxia: correlations with tumor oxygen measurements and prognosis in locally advanced carcinoma of the cervix. Cancer Res. 61(17): 6394-9. Zvada J, et al. (2003) Soluble form of Carbonic Anhydrase IX (CA IX) in the serum and urine of renal carcinoma patients. Br J Cancer. 89(6): 1067-71. Pan P, et al. (2006) Carbonic Anhydrase gene expression in CA II-deficient (Car2-/-) and CA IX-deficient (Car9-/-) mice. J Physiol. 571(Pt 2): 319-27. Zhou GX, et al. (2010) Quantification of Carbonic Anhydrase IX expression in serum and tissue of renal cell carcinoma patients using enzyme-linked immunosorbent assay: prognostic and diagnostic potentials. Urology. 75(2): 257-61.
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