Abstract
The carbonic anhydrases (CAs, EC 4.2.1.1) are ubiquitous metalloenzymes, present in prokaryotes and eukaryotes, being encoded by three distinct, evolutionarily unrelated gene families: the α-CAs (present in vertebrates, bacteria, algae, and cytoplasm of green plants), the Β-CAs (predominantly in bacteria, algae, and chloroplasts of both mono- as well as dicotyledons), and the γ-CAs (mainly in archaea and some bacteria), respectively.1-4 In higher vertebrates including humans, 14 different a- CA isozymes or CA-related proteins (CARP) were described, with very different subcellular localization and tissue distribution.2-4 Basically, there are several cytosolic forms (CA I-III, CA VII), four membrane-bound isozymes (CA IV, CA IX, CA XII, and CA XIV), one mitochondrial form (CA V), as well as a secreted CA isozyme (CA VI), together with three acatalytic forms (isozymes CARP VIII, X, and XI).2-4.
Original language | English |
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Title of host publication | Enzymes and their Inhibitors |
Subtitle of host publication | Drug Development |
Publisher | CRC Press |
Pages | 83-88 |
Number of pages | 6 |
ISBN (Electronic) | 9780203414583 |
ISBN (Print) | 0415334020, 9780415334020 |
State | Published - 1 Jan 2004 |
Externally published | Yes |