hydrolase

hydrolase
Hydrolytic Hy`dro*lyt"ic, a. [Hydro-, 1 + Gr. ? to loose.] 1. (Chem.) Tending to remove or separate water; eliminating water. [archaic] [1913 Webster]

2. (Chem.) of, pertaining to, or accompanied by {hydrolysis}. [PJC]

Hydrolytic agents, such as sulphuric acid or caustic alkali. --Encyc. Brit. [1913 Webster]

{Hydrolytic ferment} (Physiol. Chem.), an enzyme (formerly referred to as a ferment), which acts only in the presence of water, and which causes the substance acted upon to take up a molecule of water, resulting in the splitting of a chemical bond and often splitting one compound into two. Thus, diastase of malt, ptyalin of saliva, and boiling dilute sulphuric acid all convert starch by hydration into dextrin and sugar. Nearly all of the digestive enzymes are hydrolytic in their action. Since 1910 such an enzyme is usually referred to as a {{hydrolase}} or {{hydrolytic enzyme}}. [1913 Webster +PJC]


The Collaborative International Dictionary of English. 2000.

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  • hydrolase — [ idrɔlaz ] n. f. • 1899; de hydrol(yse) et ase ♦ Biochim. Enzyme qui catalyse une hydrolyse (ex. pepsine). ● hydrolase nom féminin Enzyme intervenant dans les réactions chimiques de l hydrolyse. hydrolase [idʀɔlaz] n. f. ÉTYM. 1899; …   Encyclopédie Universelle

  • Hydrolase — Hy dro*lase, n. [Hydrolysis + ase.] 1. (Chem.) an enzyme which causes the splitting of a chemical bond with the addition of the elements of water; a hydrolytic enzyme. Formerly called a {hydrolytic ferment}. Note: There are many known hydrolases …   The Collaborative International Dictionary of English

  • hydrolase — [hī′drō lās΄, hī′drōlāz΄] n. any of a class of enzymes that act as catalysts in chemical reactions involving hydrolysis …   English World dictionary

  • Hydrolase — Cristal de lysozyme Les hydrolases constituent une classe d enzymes qui catalysent les réactions d hydrolyse de molécules suivant la réaction générale : R R + H2O ⇌ R OH + R H On y trouve par exemple les estérases, qui hydrolysent les …   Wikipédia en Français

  • Hydrolase — In biochemistry, a hydrolase is an enzyme that catalyzes the hydrolysis of a chemical bond. For example, an enzyme that catalyzed the following reaction is a hydrolase::A ndash;B + H2O rarr; A ndash;OH + B ndash;HNomenclatureSystematic names of… …   Wikipedia

  • Hydrolase — Hydrolasen Enzymklassifikation EC, Kategorie …   Deutsch Wikipedia

  • hydrolase — hidrolazė statusas T sritis chemija apibrėžtis Fermentas, katalizuojantis hidrolizės reakciją. atitikmenys: angl. hydrolase rus. гидролаза …   Chemijos terminų aiškinamasis žodynas

  • hydrolase — noun Etymology: International Scientific Vocabulary, from New Latin hydrolysis + International Scientific Vocabulary ase Date: 1910 a hydrolytic enzyme …   New Collegiate Dictionary

  • hydrolase — One of a class of enzymes (EC Class 3) catalysing hydrolysis of a variety of bonds, such as esters, glycosides, peptides …   Dictionary of molecular biology

  • hydrolase — /huy dreuh lays , layz /, n. Biochem. an enzyme that catalyzes hydrolysis. Also called hydrolyst /huy dreuh list/. [1920 25; HYDR 1 + OL1+ ASE] * * * ▪ class of enzymes       any one of a class of more than 200 enzymes that catalyze the… …   Universalium

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