All Photos(1)




Carbonic Anhydrase II bovine

≥90% (SDS-PAGE), recombinant, expressed in E. coli, ≥5,000 units/mg protein, buffered aqueous solution

Sign Into View Organizational & Contract Pricing

Enzyme Commission number:


expressed in E. coli

Quality Level


≥90% (SDS-PAGE)


buffered aqueous solution

specific activity

≥5,000 units/mg protein

mol wt

~29 kDa

shipped in

wet ice

storage temp.


Related Categories


Carbonic Anhydrase II bovine has been used as a control in native gel electrophoresis and X-ray absorption spectroscopy characterization of Thalassiosira weissflogii carbonic anhydrase 1.
Carbonic anhydrase is used to create carbon dioxide capture systems and to research various purification techniques . Carbonic anhydrase is also used to study acid-base regulation in fish and carbonic anhydrase type II deficiency syndrome . Product C7749, Bovine carbonic anhydrase II (CA II), has been widely used as a model protein in the investigation of the protein folding process.

Biochem/physiol Actions

Carbonic Anhydrase is a zinc-containing enzyme that catalyzes the reversible conversion of carbon dioxide to bicarbonate. One of its main physiological roles is to maintain the acid-base balance in blood and other tissues. Lack of carbonic anhydrase results in carbonic anhydrase type II deficiency syndrome, which is an autosomal recessive disease that causes osteopetrosis, renal tubular acidosis and brain calcifications . Carbonic anhydrases are metalloenzymes since most active sites contain zinc. Carbonic anhydrases are widely distributed in plant and animal tissues where they are involved in diverse physiological processes, such as photosynthesis, pH homeostasis, calcification, and bone resorption. The enzymes can be localized in the cytosol or mitochondria, be membrane bound with extracellular domains, or be secreted. Bovine carbonic anhydrase II (CA II) is a cytosolic, single-chain, approximately 29 kDa enzyme.

Unit Definition

One unit will decrease th pH of a 20 mM tris buffer from pH 8.3 to 6.3 per minute at 0 °C.

Physical form

Supplied as a solution in 20 mM Tris, pH 7.6, with 150 mM NaCl.

Storage Class

10 - Combustible liquids




Not applicable


Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).


Product Number
Pack Size/Quantity

Additional examples:





enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service