Recombinant Human Carbonic Anhydrase VI Protein, CF

R&D Systems | Catalog # 2939-CA

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Key Product Details

  • R&D Systems NS0-derived Recombinant Human Carbonic Anhydrase VI Protein (2939-CA)
  • Quality control testing to verify active proteins with lot specific assays by in-house scientists
  • All R&D Systems proteins are covered with a 100% guarantee

Source

NS0

Accession Number

EAW71606

Applications

Enzyme Activity
View all Carbonic Anhydrase VI Proteins and Enzymes »

Product Specifications

Source

Mouse myeloma cell line, NS0-derived human Carbonic Anhydrase VI protein
Gln18-Asn308, with a C-terminal 10-His tag

Purity

>90%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<1.0 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

No results obtained: Gln18 predicted

Predicted Molecular Mass

35 kDa

SDS-PAGE

42 kDa, reducing conditions

Activity

Measured by its esterase activity.
The specific activity is >3 pmol/min/µg, as measured under the described conditions.

Formulation, Preparation, and Storage

2939-CA
Formulation Supplied as a 0.2 μm filtered solution in Tris, NaCl, Brij and Glycerol.
Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Do not freeze.
  • 3 months from date of receipt, 2 to 8 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after opening.

Background: Carbonic Anhydrase VI

Carbonic Anhydrase 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). Topics in a CA meeting (6th International Conference on the CAs, June 20‑25, 2003, Slovakia) ranged from the use of CAs as markers for tumor and hypoxia in the clinic, as a nutritional supplement in milk, and as a tool for CO2 removal and mosquito control in industry. Carbonic Anhydrase VI, also known as gustin and salivary Carbonic Anhydrase, is a zinc-metalloprotein that constitutes about 3% of human parotid saliva protein (2, 3). It was decreased in patients with loss of taste and pathological changes in taste buds (4). It is also an elementary component of milk. It plays an important role in normal growth and development of the infant alimentary tract (5).

References

  1. Hewett-Emmett, D. and R.E. Tashian (1996) Mol. Phylogenet. Evol. 5:50.
  2. Murakami, H. and Sly, W. S. (1987) J. Biol. Chem. 262:1382.
  3. Thatcher, B. J. et al. (1998) Biochem. Biophys. Res. Commun. 250:635.
  4. Hankin, R. I. et al. (1999) Am. J. Med. Sci. 318:380.
  5. Karhumaa, P. et al. (2001) Proc. Natl. Acad. Sci. USA. 98:11604.

Alternate Names

CA6, Gustin

Entrez Gene IDs

765 (Human); 298657 (Rat)

Gene Symbol

CA6

UniProt

EAW71606

Additional Carbonic Anhydrase VI Products

Product Documents for Recombinant Human Carbonic Anhydrase VI Protein, CF

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Recombinant Human Carbonic Anhydrase VI Protein, CF

For research use only

Citations for Recombinant Human Carbonic Anhydrase VI Protein, CF

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Protocols

View specific protocols for Recombinant Human Carbonic Anhydrase VI Protein, CF (2939-CA):

Materials
  • Assay Buffer: 12.5 mM Tris, 75 mM NaCl, pH 7.5
  • Recombinant Human Carbonic Anhydrase VI (rhCA6) (Catalog # 2939-CA)
  • Substrate: 4-Nitrophenyl Acetate (4-NPA) (Sigma, Catalog # N8130), 100 mM stock in acetone
  • 96-well Clear Plate (Costar, Catalog # 92592)
  • Plate reader (Model: SpectraMax Plus by Molecular Devices) or equivalent
  1. Dilute rhCA6 to 50 ng/µL in Assay Buffer.
  2. Dilute Substrate to 2 mM in Assay Buffer.
  3. Load in plate, 50 µL of 50 ng/µL rhCA6, and start the reaction by adding 50 µL of 2 mM Substrate. Include a Substrate Blank containing 50 µL Assay Buffer and 50 µL of 2 mM Substrate.
  4. Read at a wavelength of 400 nm (bottom read) in kinetic mode for 5 minutes.
  5. Calculate specific activity:

     Specific Activity (pmol/min/µg) =

 Adjusted Vmax* (OD/min) x Conversion Factor** (pmol/OD)
amount of enzyme (µg)

     *Adjusted for Substrate Blank
     **Derived using calibration standard 4-Nitrophenol (Sigma, Catalog # 241326).

Per Well:
  • rhCA6: 2.5 µg
  • Substrate: 1 mM

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