anhydrase

anhydrase
An enzyme that catalyzes the removal of water from a compound; most such enzymes are now known as hydrases, hydro-lyases, or dehydratases.
- carbonic a. a zinc-containing enzyme that catalyzes the interconversion of CO2 with HCO3− and H+. There are at least seven human isozymes that appear predominantly in red blood cells, secretory tissues, muscle, etc. A deficiency of carbonic a. II can result in osteopetrosis and metabolic acidosis. The inhibition of carbonic a. IV and possibly carbonic a. II by sulfonamides is a current therapy in the treatment of glaucoma. SYN: carbonate dehydratase, carbonate hydro- lyase.

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an·hy·drase an-'hī-.drās, -.drāz n an enzyme (as carbonic anhydrase) promoting a specific dehydration reaction and the reverse hydration reaction

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n.
an enzyme that catalyses the removal of water from a compound.

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an·hy·drase (an-hiґdrās) an older, common term used in naming some enzymes of the hydro-lyase (q.v.) sub-subclass.

Medical dictionary. 2011.

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  • anhydrase — ● anhydrase nom féminin Enzyme qui catalyse une déshydratation. ● anhydrase (expressions) nom féminin Anhydrase carbonique, enzyme qui catalyse la déshydratation réversible de l acide carbonique : H2CO3⇌CO2+H2O. (Elle joue un rôle important au… …   Encyclopédie Universelle

  • anhydrase — anˈhīˌdrās noun ( s) Etymology: anhydr + ase : an enzyme (as carbonic anhydrase) promoting a specific dehydration reaction and the reverse hydration reaction …   Useful english dictionary

  • Anhydrase carbonique — ● Anhydrase carbonique enzyme qui catalyse la déshydratation réversible de l acide carbonique : H2CO3⇌CO2+H2O. (Elle joue un rôle important au niveau du sang, des poumons, de l estomac et du rein. Ses inhibiteurs [certains sulfamides] sont… …   Encyclopédie Universelle

  • Anhydrase carbonique — L anhydrase carbonique est une enzyme présente à la surface des globules rouges (ou hématies ou encore érythrocytes) qui transforme le CO2 en H2CO3 et inversement. Équation : H2O + CO2 ↔ H2CO3 ↔ HCO3 + H+. Dans les reins, elle sert à libérer …   Wikipédia en Français

  • anhydrase — noun An enzyme that catalyzes the removal of water from a material …   Wiktionary

  • anhydrase — an·hy·drase …   English syllables

  • anhydrase — n. an enzyme that catalyses the removal of water from a compound …   The new mediacal dictionary

  • Carbonic anhydrase II — (gene name CA2), is one of fourteen forms of human α carbonic anhydrases. Carbonic anhydrase catalyzes reversible hydration of carbon dioxide. Defects in this enzyme are associated with osteopetrosis and renal tubular acidosis [cite web | title …   Wikipedia

  • Carbonic anhydrase III, muscle specific — Carbonic anhydrase III, muscle specific, also known as CA3, is a human gene. PBB Summary section title = summary text = Carbonic anhydrase III (CAIII) is a member of a multigene family (at least six separate genes are known) that encode carbonic… …   Wikipedia

  • Carbonic anhydrase — The carbonic anhydrases (or carbonate dehydratases) form a family of enzymes that catalyze the rapid conversion of carbon dioxide to bicarbonate and protons, a reaction that occurs rather slowly in the absence of a catalyst.cite journal | author …   Wikipedia

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