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Human Carbonic Anhydrase VIII / CA8 Protein (His Tag)

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Human CA8 Protein Product Information
Synonym:CA-VIII, CALS, CAMRQ3, CARP, MGC120502, MGC99509
Protein Construction:A DNA sequence encoding the human CA8 (NP_004047.3) (Met 1-Gln 290) was expressed, with a polyhistidine tag at the C-terminus.
Expressed Host:E. coli
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.
Human CA8 Protein QC Testing
Purity:> 94 % as determined by SDS-PAGE
Bio-Activity:Measured by its esterase activity . The specific activity is >100 pmoles/min/μg.
Endotoxin:Please contact us for more information.
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Met 1
Molecule Mass:The recombinant human CA8 comprises 296 amino acids and has a predicted molecular mass of 33.8 kDa. It migrates as an approximately 37 kDa band in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile PBS, 15% glycerol, pH 7.5
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human CA8 Protein Usage Guide
Storage: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.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Other CA8 Recombinant Protein Products
Carbonic Anhydrase VIII/CA8 Background

The carbonic anhydrases (or carbonate dehydratases) are classified as metalloenzyme for its zinc ion prosthetic group and form a family of enzymes that catalyze the rapid interconversion of carbon dioxide and water to bicarbonate and protons, a reversible reaction that takes part in maintaining acid-base balance in blood and other tissues. The carbonic anhydrasekl (CA) family consists of at least 11 enzymatically active members and a few inactive homologous proteins. Carbonic anhydrase protein (CA) VIII, which is a member of the CA gene family, has been shown to have no catalytic CA activity and its biological function is still unknown. Increased expression of CA-RP VIII was observed in 78% of colorectal carcinomas. It suggested that CA-RP VIII plays a role in the process of invasion in colorectal cancer.

Human Carbonic Anhydrase VIII/CA8 References
  • Lehtonen J, et al. (2004) Characterization of CA XIII, a Novel Member of the Carbonic Anhydrase Isozyme Family. The Journal of Biological Chemistry. 279: 2719-27.
  • Lindskog S. (1997) Structure and mechanism of carbonic anhydrase. Pharmacology & Therapeutics. 74(1):1-20.
  • Miyaji E, et al. (2003) Overexpression of carbonic anhydrase-related protein VIII in human colorectal cancer. The Journal of Pathology. 201(1): 37-45.
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    Catalog: 10469-H08E-50
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