• USA Home
  • C3934 - Carbonic Anhydrase from bovine erythrocytes

C3934 Sigma

Carbonic Anhydrase from bovine erythrocytes

lyophilized powder, ≥2,000 W-A units/mg protein

Synonym: Carbonate Dehydratase, Carbonate Hydrolyase



Frequently Asked Questions

Frequently Asked Questions are available for this Product.


100, 500 mg in poly bottle

Unit Definition

One Wilbur-Anderson (W-A) unit will cause the pH of a 0.02 M Trizma buffer to drop from 8.3 to 6.3 per min at 0°C. (One W-A unit is essentially equivalent to one Roughton-Booth unit.)


Carbonic anhydrase from bovine erythrocytes (BCA) has been used to study the effect of removal of enzyme-bound metal ion, Zn2+, on aggregation behavior of the enzyme. Removal of metal ion by a chelator such as EDTA enhances the propensity of the enzyme to adopt the molten-globule state. This state of the enzyme is found to bind to the chaperone-like α-crystallin and prevent aggregation. The enzyme from Sigma has been immobilized to electrochemical transducers in order to obtain develop an analytical device for dissolved CO2 measurement. It has also been used for the thermodynamic analysis of conformational changes in BCA.

Biochem/physiol Actions

Carbonic anhydrase is a zinc metalloenzyme that has a molecular weight of approximately 30,000 Da. The enzyme catalyzes the hydration of carbon dioxide to carbonic acid. It is involved in vital physiological and pathological processes such as pH and CO2 homeostasis, transport of bicarbonate and CO2, biosynthetic reactions, bone resorption, calcification, and tumorigenicity. Therefore, this enzyme is an important target for inhibitors with clinical applications for various pathologies such as glaucoma, epilepsy and Parkinson’s disease.

Price and Availability

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Protocols & Articles


Cellular Derived Blood Proteins and Enzymes

Cell damage is induced by reactive oxygen species (ROS). ROS are either free radicals, reactive anions containing oxygen atoms, or molecules containing oxygen atoms that can either produce free radic...
BioFiles 2006, 1.5, 4.
Keywords: Aerobic, Alzheimer Disease, Bacterial conjugations, Biofiles, Cancer, Metabolism, Oxidations, Parkinson Disease, Reductions, Respiration


Enzymatic Assay of Carbonic Anhydrase for Wilbur-Anderson Units (EC

To standardize a procedure for the enzymatic assay of Carbonic Anhydrase (EC for Wilbur-Anderson Units.
Keywords: Hydration reaction, Phase transitions

Related Content

Enzymes & Proteins

Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
Keywords: Cell signaling, Diagnostic, Drug discovery, Molecular biology

Peer-Reviewed Papers


Set your institution to view full text papers.
Related Products


Product #


Add to Cart

C4911 Chlorothiazide, thiazide diuretic
A6011 Acetazolamide, ≥99%, powder

related product

Product #


Add to Cart

08168 Timestrip Plus 8 °C

Technical Service:

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

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?