Product Specifications for Recombinant Mouse Carbonic Anhydrase XII Protein, CF
Mouse myeloma cell line, NS0-derived mouse Carbonic Anhydrase XII/CA12 protein Ala25-Ser301, with a C-terminal 10-His tag Accession # Q8CI85
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
<1.0 EU per 1 μg of the protein by the LAL method.
N-terminal sequence Analysis
Predicted Molecular Mass
39-41 kDa, reducing conditions
Measured by its esterase activity. The specific activity is >50 pmol/min/µg, as measured under the described conditions.
Formulation, Preparation and Storage
What does CF mean?
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our
Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant
protein to be stored at a more dilute concentration.
The carrier free version does not contain BSA.
What formulation is right for me?
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or
as an ELISA standard.
In contrast, the carrier free protein is recommended for applications, in which the presence of BSA
Supplied as a 0.2 μm filtered solution in Tris and NaCl.
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
6 months from date of receipt, -20 to -70 °C as supplied.
3 months, -20 to -70 °C under sterile conditions after opening.
Background: Carbonic Anhydrase XII/CA12
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). Topics in a CA meeting (6th 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. Mouse CA12 is predicted to be a type I membrane enzyme (2, 3). The secreted, purified recombinant mouse CA12 corresponds to the extracellular domain and has both CA activity and esterase activity. To our knowledge, this is the first description of purified recombinant mouse CA12 with enzymatic activity.
Hewett-Emmett, D. and R.E. Tashian (1996) Mol. Phylogenet. Evol. 5:50.
Strausberg, R.L. et al. (2002) Proc. Natl. Acad. Sci. USA 99:16899.
Which Brands are Currently Available on bio‑techne.com? R&D Systems, Tocris Bioscience and ProteinSimple branded products are available to purchase through bio‑techne.com. ProteinSimple branded instruments are available to quote. ACD branded products will be available on bio‑techne.com in the near future. Novus Biologicals branded products are not currently available on bio‑techne.com and can be found at novusbio.com.
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