TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
COMPLEXE ENZYME INHIBITEUR [5 records]
Record 1 - internal organization data 2011-08-09
Record 1, English
Record 1, Subject field(s)
- Biological Sciences
Record 1, Main entry term, English
- reversible inhibition
1, record 1, English, reversible%20inhibition
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- reversible enzyme inhibition 2, record 1, English, reversible%20enzyme%20inhibition
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
In reversible inhibition of enzymes ... the inhibitor participates in a rapidly established, easily reversible equilibrium with the enzyme or enzyme-substrate complex, which can be analyzed in terms of the Michaelis-Menten formalism.... The three major types of reversible enzyme inhibition, competitive, uncompetitive, and noncompetitive, can be experimentally distinguished by the effects of the inhibitor on the reaction kinetics of the enzyme, which may be analyzed in terms of the basic Michaelis-Menten rate equation. For valid kinetic analysis the inhibitor must combine rapidly and reversibly with the enzyme or enzyme-substrate complex. 2, record 1, English, - reversible%20inhibition
Record 1, French
Record 1, Domaine(s)
- Sciences biologiques
Record 1, Main entry term, French
- inhibition réversible
1, record 1, French, inhibition%20r%C3%A9versible
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- inhibition enzymatique réversible 2, record 1, French, inhibition%20enzymatique%20r%C3%A9versible
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Inhibition non permanente où l’inhibiteur ne se combine pas de façon covalente sur l’enzyme. L’inhibition est dans ce cas un processus rapide. En général, une dialyse, éliminant l’inhibiteur, restaure l’activité de l’enzyme. Les inhibiteurs agissant de cette façon sont assez spécifiques. On distingue plusieurs modalités de l’inhibition réversible appelées inhibitions : compétitive, non compétitive et incompétitive. 2, record 1, French, - inhibition%20r%C3%A9versible
Record number: 1, Textual support number: 1 CONT
Les trois types principaux d’inhibition enzymatique réversible, compétitive, incompétitive et non compétitive se distinguent expérimentalement par les effets de l'inhibiteur sur la cinétique de la réaction enzymatique étudiée à l'aide de l'équation de Michaelis-Menten. Pour une analyse cinétique valable, l'inhibiteur doit se combiner rapidement et réversiblement avec l'enzyme ou avec le complexe enzyme-substrat. 3, record 1, French, - inhibition%20r%C3%A9versible
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2011-05-17
Record 2, English
Record 2, Subject field(s)
- Analytical Chemistry
- Biochemistry
- Biotechnology
Record 2, Main entry term, English
- affinity chromatography
1, record 2, English, affinity%20chromatography
correct
Record 2, Abbreviations, English
- AC 2, record 2, English, AC
correct
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A procedure which uses a gel matrix combined with an enzyme or nucleic acid to obtain purification of biomolecules. 3, record 2, English, - affinity%20chromatography
Record number: 2, Textual support number: 2 DEF
A technique of molecular separation in which molecules are attached to an insoluble (e.g., sepharose) matrix. Only those molecules which show affinity to the bound molecule (e.g., an antibody for its antigen) are retained. These trapped molecules can be subsequently eluted. 4, record 2, English, - affinity%20chromatography
Record 2, Key term(s)
- affinity purification
Record 2, French
Record 2, Domaine(s)
- Chimie analytique
- Biochimie
- Biotechnologie
Record 2, Main entry term, French
- chromatographie d'affinité
1, record 2, French, chromatographie%20d%27affinit%C3%A9
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- chromatographie par affinité 2, record 2, French, chromatographie%20par%20affinit%C3%A9
feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Technique permettant la séparation de substances, [...] qui utilise la fixation spécifique d’une protéine sur un ligand lui-même fixé par liaison covalente à un support microscopique. 3, record 2, French, - chromatographie%20d%27affinit%C3%A9
Record number: 2, Textual support number: 1 CONT
[...] la chromatographie d’affinité permet de purifier une protéine enzymatique par exemple. La méthode consiste à attacher de façon covalente sur un support solide un analogue stérique du substrat de l'enzyme(inhibiteur compétitif ou substrat modifié) en vue de former avec l'enzyme un complexe du type enzyme-substrat [...]. L'enzyme sera donc retardé lors du passage sur la colonne par rapport aux autres protéines qui, ne reconnaissant pas l'analogue, sortiront de la colonne plus rapidement que l'enzyme. 4, record 2, French, - chromatographie%20d%27affinit%C3%A9
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Química analítica
- Bioquímica
- Biotecnología
Record 2, Main entry term, Spanish
- cromatografía por afinidad
1, record 2, Spanish, cromatograf%C3%ADa%20por%20afinidad
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
- cromatografía de afinidad 2, record 2, Spanish, cromatograf%C3%ADa%20de%20afinidad
feminine noun
Record 2, Textual support, Spanish
Record 3 - internal organization data 2011-01-11
Record 3, English
Record 3, Subject field(s)
- Biological Sciences
Record 3, Main entry term, English
- uncompetitive enzyme inhibition
1, record 3, English, uncompetitive%20enzyme%20inhibition
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- uncompetitive inhibition 2, record 3, English, uncompetitive%20inhibition
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The prevention of an enzymic process as a result of the interaction of an inhibitor with the enzyme-substrate complex or a subsequent intermediate form of the enzyme, but not with the free enzyme. 1, record 3, English, - uncompetitive%20enzyme%20inhibition
Record number: 3, Textual support number: 1 CONT
In uncompetitive inhibition which is not very aptly named, the inhibitor does not combine with the free enzyme or affect its reaction with its normal substrate; however, it does combine with the enzyme-substrate complex to give an inactive enzyme-substrate-inhibitor complex, which cannot undergo further reaction to yield the normal product ... Uncompetitive inhibition is rare in one-substrate reactions. 3, record 3, English, - uncompetitive%20enzyme%20inhibition
Record 3, French
Record 3, Domaine(s)
- Sciences biologiques
Record 3, Main entry term, French
- inhibition incompétitive
1, record 3, French, inhibition%20incomp%C3%A9titive
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- inhibition par blocage du complexe intermédiaire 2, record 3, French, inhibition%20par%20blocage%20du%20complexe%20interm%C3%A9diaire
correct, feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Inhibition par blocage du complexe ES enzyme-substrat. On suppose l'existence sur l'enzyme de deux sites de fixation, l'un réservé au substrat, l'autre à l'inhibiteur, mais ce dernier ne peut se fixer de façon réversible que sur le complexe intermédiaire ES. [...] L'inhibiteur ne permet pas au complexe ternaire ESI, d’évoluer vers l'élaboration du produit. 1, record 3, French, - inhibition%20incomp%C3%A9titive
Record number: 3, Textual support number: 1 CONT
Dans l’inhibition incompétitive, le degré d’inhibition peut s’élever lorsque la concentration en substrat est augmentée, contrairement à l’inhibition non compétitive, où l’inhibiteur n’est pas déplacé lorsqu’on augmente la concentration en substrat. L’inhibition incompétitive est rare dans les réactions à un substrat mais banale dans les réactions à deux substrats. 2, record 3, French, - inhibition%20incomp%C3%A9titive
Record number: 3, Textual support number: 1 OBS
Voir «inhibition compétitive», «inhibition non compétitive». 2, record 3, French, - inhibition%20incomp%C3%A9titive
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2011-01-05
Record 4, English
Record 4, Subject field(s)
- Biological Sciences
Record 4, Main entry term, English
- enzyme-inhibitor complex
1, record 4, English, enzyme%2Dinhibitor%20complex
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
Complex that consists of an enzyme and an inhibitor which is bound either to the catalytic site of the enzyme or to some other site on the enzyme. 1, record 4, English, - enzyme%2Dinhibitor%20complex
Record number: 4, Textual support number: 1 CONT
Competitive inhibitors are those reacting reversibly with the free enzyme in competition with the substrate to form an enzyme-inhibitor complex; their action can be reversed by increasing the substrate concentration. 2, record 4, English, - enzyme%2Dinhibitor%20complex
Record number: 4, Textual support number: 1 OBS
EI is an abbreviation of enzyme-inhibitor complex. 3, record 4, English, - enzyme%2Dinhibitor%20complex
Record 4, French
Record 4, Domaine(s)
- Sciences biologiques
Record 4, Main entry term, French
- complexe enzyme-inhibiteur
1, record 4, French, complexe%20enzyme%2Dinhibiteur
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- combinaison enzyme-inhibiteur 2, record 4, French, combinaison%20enzyme%2Dinhibiteur
correct, feminine noun
- complexe E-I 2, record 4, French, complexe%20E%2DI
correct, masculine noun
- complexe EI 2, record 4, French, complexe%20EI
correct, masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Complexe formé par l'association de l'enzyme avec l'inhibiteur. Dans l'inhibition compétitive, l'inhibiteur se combine avec l'enzyme libre et entre ainsi en compétition avec le substrat au niveau du site actif. L'inhibiteur compétitif réagit réversiblement avec l'enzyme pour former un complexe analogue au complexe enzyme-substrat. 2, record 4, French, - complexe%20enzyme%2Dinhibiteur
Record number: 4, Textual support number: 1 CONT
Il est clair que l'enzyme engagé dans le complexe E-I ne peut pas fonctionner comme catalyseur, seul le complexe E-S pourra permettre la formation des produits de la réaction. L'inhibition, en d’autres termes la proportion de molécules d’enzymes se combinant à l'inhibiteur, dépend de la concentration en substrat, de la concentration en inhibiteur, de l'affinité de l'enzyme pour le substrat et de l'affinité de l'enzyme pour l'inhibiteur. 3, record 4, French, - complexe%20enzyme%2Dinhibiteur
Record number: 4, Textual support number: 1 OBS
Différent du complexe (ES), le complexe (EI) ne se dégrade pas en produits de la réaction. 4, record 4, French, - complexe%20enzyme%2Dinhibiteur
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2010-12-22
Record 5, English
Record 5, Subject field(s)
- Biological Sciences
Record 5, Main entry term, English
- competitive inhibition
1, record 5, English, competitive%20inhibition
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- selective inhibition 2, record 5, English, selective%20inhibition
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
Blocking of the action of an enzyme on its substrate by replacing the latter with a similar but inactive compound, one capable of combining with the active site of the enzyme but not being acted upon or split by it; e.g., sulfonamide vs. p-aminobenzoic acid. 1, record 5, English, - competitive%20inhibition
Record number: 5, Textual support number: 1 CONT
In competitive inhibition, the binding of inhibitor and substrate to the enzyme is mutually exclusive.... With some proteins, especially regulatory proteins, competitive inhibition can result from the inhibitor binding at another location on the enzyme, thereby altering the configuration at the active site so that substrate cannot bind. Such an enzyme may be thought of as having two different configurations, one that permits binding of substrate. Binding is mutually exclusive and therefore competitive, as in simpler situations where the substrate and inhibitor are competing for binding to the same site. In these more complex examples of competitive inhibition the structure of the inhibitor usually does not resemble that of the substrate. 3, record 5, English, - competitive%20inhibition
Record 5, French
Record 5, Domaine(s)
- Sciences biologiques
Record 5, Main entry term, French
- inhibition compétitive
1, record 5, French, inhibition%20comp%C3%A9titive
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- inhibition concurrentielle 2, record 5, French, inhibition%20concurrentielle
correct, feminine noun
- inhibition par association exclusive 2, record 5, French, inhibition%20par%20association%20exclusive
correct, feminine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Ralentissement ou arrêt d’une réaction enzymatique sous l’effet d’une molécule semblable au substrat, appelée inhibiteur, qui, sans prendre part à cette réaction, peut se lier de façon réversible à la place du substrat sur le site actif. 2, record 5, French, - inhibition%20comp%C3%A9titive
Record number: 5, Textual support number: 1 CONT
Expérimentalement, on peut facilement reconnaître une inhibition compétitive car, pour une concentration donnée d’inhibiteur, l’inhibition décroît lorsqu’on augmente la concentration du substrat. 3, record 5, French, - inhibition%20comp%C3%A9titive
Record number: 5, Textual support number: 1 OBS
L'inhibition partiellement compétitive est un cas particulier de l'inhibition non compétitive dans lequel la constante d’association de l'inhibiteur est différente selon qu'il réagit avec l'enzyme libre ou le complexe enzyme-substrat. 4, record 5, French, - inhibition%20comp%C3%A9titive
Record 5, Spanish
Record 5, Textual support, Spanish
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