TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
REACTION CATALYSEE ENZYME [12 records]
Record 1 - internal organization data 2017-09-07
Record 1, English
Record 1, Subject field(s)
- Biological Sciences
- Biotechnology
Record 1, Main entry term, English
- bimolecular reaction
1, record 1, English, bimolecular%20reaction
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A chemical process in which two substances or two molecules of a single substance are transformed into another substance or substances. 2, record 1, English, - bimolecular%20reaction
Record number: 1, Textual support number: 1 OBS
Chemical reactions may be classified on the basis of the number of molecules that must ultimately react to form the reaction products. Thus, we have monomolecular, bimolecular, and termolecular reactions, in which one, two, or three molecules, respectively, undergo reaction. 3, record 1, English, - bimolecular%20reaction
Record 1, French
Record 1, Domaine(s)
- Sciences biologiques
- Biotechnologie
Record 1, Main entry term, French
- réaction chimique bimoléculaire
1, record 1, French, r%C3%A9action%20chimique%20bimol%C3%A9culaire
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- réaction bimoléculaire 2, record 1, French, r%C3%A9action%20bimol%C3%A9culaire
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les réactions chimiques peuvent être classées en fonction du nombre de molécules qui réagissent entre elles pour former les produits. Ainsi, pouvons-nous avoir des réactions monomoléculaires, bimoléculaires, trimoléculaires. [...] Lorsqu'une réaction chimique bimoléculaire, [...] possède une vitesse de K2=1 M-1 sec-1), la même réaction catalysée par un enzyme atteint habituellement une vitesse de 10[ exposant 6 à 109. La limite maximum de vitesse que l'on atteindrait si à chaque contact entre A et B la réaction avait lieu et qu'elle soit instantanée, serait de l'ordre de 1010 à 1011. Cette vitesse hypothétique, contrôlée par la diffusion ne serait limitée que par la durée statistique entre les chocs, donc par la vitesse de déplacement de molécules dans le milieu considéré. 3, record 1, French, - r%C3%A9action%20chimique%20bimol%C3%A9culaire
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Ciencias biológicas
- Biotecnología
Record 1, Main entry term, Spanish
- reacción bimolecular
1, record 1, Spanish, reacci%C3%B3n%20bimolecular
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2014-12-10
Record 2, English
Record 2, Subject field(s)
- Biochemistry
Record 2, Main entry term, English
- phosphofructokinase
1, record 2, English, phosphofructokinase
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
An enzyme that functions in carbohydrate metabolism and especially in glycolysis by catalyzing the transfer of a second phosphate (as from ATP [adenosine triphosphate]) to fructose. 1, record 2, English, - phosphofructokinase
Record 2, French
Record 2, Domaine(s)
- Biochimie
Record 2, Main entry term, French
- phosphofructokinase
1, record 2, French, phosphofructokinase
correct, feminine noun
Record 2, Abbreviations, French
- PFK 2, record 2, French, PFK
correct, feminine noun
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
De même que la grande variation d’énergie libre qui accompagne la phosphorylation du glucose par l'hexokinase fait que cet enzyme est susceptible de de régulation, la réaction catalysée par la phosphofructokinase est un important point de régulation. C'est d’ailleurs le plus important site de régulation de la glycolyse. 3, record 2, French, - phosphofructokinase
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2012-10-15
Record 3, English
Record 3, Subject field(s)
- Biochemistry
Record 3, Main entry term, English
- saturation
1, record 3, English, saturation
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The substrate concentration at which all enzyme-active sites are occupied and, consequently, at which the reaction velocity is maximal. 2, record 3, English, - saturation
Record number: 3, Textual support number: 1 CONT
The general principles of chemical-reaction kinetics apply to enzyme-catalyzed reactions, but they also show a distinctive feature not usually observed in nonenzymatic reactions, saturation with substrate.... At a low substrate concentration, the initial reaction velocity vo is nearly proportional to the substrate concentration, and the reaction is thus approximately first order with respect to the substrate. However, as the substrate concentration is increased, the initial rate increases less, so that is is no longer nearly proportional to the substrate concentration; in this zone, the reaction is mixed order. With a further increase in the substrate concentration, the reaction rate becomes essentially independent of substrate concentration and asymptotically approaches a constant rate. 3, record 3, English, - saturation
Record 3, French
Record 3, Domaine(s)
- Biochimie
Record 3, Main entry term, French
- saturation
1, record 3, French, saturation
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Concentration du substrat à laquelle la vitesse d’une réaction catalysée par une enzyme atteint la vitesse limite. Elle se traduit par la transformation complète de l'enzyme en composé intermédiaire. 2, record 3, French, - saturation
Record number: 3, Textual support number: 1 CONT
Des concentrations de substrat de l’ordre de 10-3 - 10-5 M sont d’habitude suffisantes pour la «saturation» presque complète des sites enzymatiques. [...] Ce phénomène de saturation, qui est une caractéristique des systèmes dans lesquels un complexe bimoléculaire stable se forme entre les substances réagissantes, est un reflet de l’interaction forte de la protéine enzymatique avec son substrat. 3, record 3, French, - saturation
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2011-11-25
Record 4, English
Record 4, Subject field(s)
- Biochemistry
Record 4, Main entry term, English
- polyaromatic hydrocarbon ring-hydroxylating dioxygenase 1, record 4, English, polyaromatic%20hydrocarbon%20ring%2Dhydroxylating%20dioxygenase
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record 4, French
Record 4, Domaine(s)
- Biochimie
Record 4, Main entry term, French
- dioxygénase d’hydroxylation des anneaux d’hydrocarbures polyaromatiques
1, record 4, French, dioxyg%C3%A9nase%20d%26rsquo%3Bhydroxylation%20des%20anneaux%20d%26rsquo%3Bhydrocarbures%20polyaromatiques
feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 OBS
Dégradation aérobique des composés aliphatiques. • Composés aromatiques : BTEX(benzène, toluène, éthylbenzène et xylène : un anneau aromatique) etPAH(hydrocarbures poly-aromatiques :> deux anneaux aromatiques fusionnés). 1. Hydroxylation : incorporation d’un ion hydroxyl sur l'anneau aromatique :réaction catalysée par monooxygénase ou dioxygénase : formation de catéchol. 2. Clivage de l'anneau aromatique du catéchol par un deuxième enzyme dioxygénase et ainsi de suite jusqu'à dégradation complète. 2, record 4, French, - dioxyg%C3%A9nase%20d%26rsquo%3Bhydroxylation%20des%20anneaux%20d%26rsquo%3Bhydrocarbures%20polyaromatiques
Record 4, Key term(s)
- dioxygénase d’hydroxylation des anneaux d’hydrocarbures poly-aromatiques
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2011-01-12
Record 5, English
Record 5, Subject field(s)
- Biological Sciences
Record 5, Main entry term, English
- bisubstrate reaction
1, record 5, English, bisubstrate%20reaction
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
Enzymatic reactions having two ... substrates. Most enzymes catalyze reactions with two interacting substrates; such reactions show much more complex kinetics than the simple one-substrate reactions. Enzymes catalyzing bisubstrate reactions include the large class of transferases, which catalyze the transfer of a specific functional group from one of the substrates to the other. 1, record 5, English, - bisubstrate%20reaction
Record 5, French
Record 5, Domaine(s)
- Sciences biologiques
Record 5, Main entry term, French
- réaction à deux substrats
1, record 5, French, r%C3%A9action%20%C3%A0%20deux%20substrats
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Réaction catalysée par un enzyme qui met en jeu deux substrats. Lorsque la réaction exige la participation de deux molécules de substrat réagissant entre elles pour donner deux molécules de produit le processus enzymatique peut comporter de nombreuses variantes. 2, record 5, French, - r%C3%A9action%20%C3%A0%20deux%20substrats
Record number: 5, Textual support number: 1 CONT
Les réactions à deux substrats dans lesquelles l’un des deux substrats est toujours à concentration saturante, comme c’est le cas pour de nombreuses réactions d’hydrolyse, ont un comportement cinétique formellement analogue à celui d’une réaction typique à un substrat. 3, record 5, French, - r%C3%A9action%20%C3%A0%20deux%20substrats
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2011-01-11
Record 6, English
Record 6, Subject field(s)
- Biological Sciences
Record 6, Main entry term, English
- indicator reaction
1, record 6, English, indicator%20reaction
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
Since citrate detergents are likely to become progressively more prominent, an assay method for citrates in such preparations was needed. An enzymic method was devised by Taraborelly and Upton in Pfizer's quality control laboratory. A coupled sequence of reactions is used to give a fast, simple, and specific assay method. These reactions are shown in Equations 1 and 2. ... NADH is destroyed in the "indicator reaction" of this coupled sequence. This destruction is measured by the decrease in absorption at 340 nanometers and the citrate concentration is easily calculated. 1, record 6, English, - indicator%20reaction
Record number: 6, Textual support number: 1 OBS
Because of technical constraints, the formula(s) given in CBT-167 could not be reproduced. 2, record 6, English, - indicator%20reaction
Record 6, French
Record 6, Domaine(s)
- Sciences biologiques
Record 6, Main entry term, French
- réaction indicatrice
1, record 6, French, r%C3%A9action%20indicatrice
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Les réactions indicatrices sont nécessaires lorsque le substrat dosé ou le produit de la transformation ne possèdent pas de propriétés spectrophotométriques particulières. [...] Exemple : lorsque l'enzyme E, dont on mesure l'activité, n’ est pas une déshydrogénase à NAD+ ou NADP+, et que ni le substrat S, ni le produit P ne possèdent de propriétés spectrales particulières, on couple la première réaction à une deuxième, catalysée par une déshydrogénase dont P est le substrat. [...] Dans certaines conditions, mesurer l'activité de E2 équivaut à mesurer l'activité de E1. La deuxième réaction est dite "réaction indicatrice" de la première, appelée "réaction principale". E2 est une déshydrogénase à NAD+ ou NADP+, spécifique de P. [...] On suit l'évolution de la réaction indicatrice par spectrophotométrie à 340 nm. 2, record 6, French, - r%C3%A9action%20indicatrice
Record number: 6, Textual support number: 1 OBS
En raison de contraintes d’ordre technique, les formules figurant dans la source CBT-167 ne peuvent être reproduites. 3, record 6, French, - r%C3%A9action%20indicatrice
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2011-01-10
Record 7, English
Record 7, Subject field(s)
- Biological Sciences
Record 7, Main entry term, English
- classification number
1, record 7, English, classification%20number
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
- EC number 2, record 7, English, EC%20number
correct
- enzyme commission number 2, record 7, English, enzyme%20commission%20number
correct
- enzyme number 2, record 7, English, enzyme%20number
correct
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
Number consisting of four parts (a, b, c, d) which is used where accurate and unambiguous identification of an enzyme is required, as in international research journals, abstracts, and indexes. 2, record 7, English, - classification%20number
Record number: 7, Textual support number: 1 CONT
Many enzymes, especially the more common ones, are known by short trivial names that usually end in the suffix -ase. However, this can lead to confusion, hence the use of a specific name according to the rules of the international enzyme classification system is preferable. This system provides both a systematic name and a four-part classification number. The first number of the code places the enzyme into one of six groups, indicating the type of reaction involved. The next two numbers indicate the groups involved in the reaction and the fourth number provides the absolute identification of the enzyme. 2, record 7, English, - classification%20number
Record number: 7, Textual support number: 1 OBS
The enzyme number is preceded by the abbreviation E.C., or EC, which stands for enzyme commission. 3, record 7, English, - classification%20number
Record 7, French
Record 7, Domaine(s)
- Sciences biologiques
Record 7, Main entry term, French
- numéro de code
1, record 7, French, num%C3%A9ro%20de%20code
correct, masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
- numéro de classification 2, record 7, French, num%C3%A9ro%20de%20classification
correct, masculine noun
Record 7, Textual support, French
Record number: 7, Textual support number: 1 DEF
Numéro précédé des lettres E.C. (Enzyme Commission) et comportant quatre chiffres séparés par des points. Le premier chiffre indique l’appartenance à l’un des six groupes de réaction. Le deuxième et le troisième chiffre constituent des sous-classes qui précisent d’abord le type de réaction puis le type de molécule sur lequel elle a lieu. Enfin le dernier chiffre est un simple numéro d’ordre de l’enzyme dans le sous-groupe considéré et désigne le substrat particulier sur lequel porte la réaction, ou éventuellement les substrats s’ils sont plusieurs à participer à la réaction. 2, record 7, French, - num%C3%A9ro%20de%20code
Record number: 7, Textual support number: 1 CONT
Chaque enzyme reçoit un nom recommandé habituellement court et pratique pour l'usage courant, un nom systématique basé sur la réaction catalysée et un numéro de classification qui est utilisé lorsqu'une identification claire et précise d’un enzyme est nécessaire comme dans les journaux de recherches internationaux, les résumés et les index. 3, record 7, French, - num%C3%A9ro%20de%20code
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2011-01-05
Record 8, English
Record 8, Subject field(s)
- Biological Sciences
Record 8, Main entry term, English
- catalytic activity
1, record 8, English, catalytic%20activity
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 DEF
Ratio of the space velocity of a catalyst being tested, to the space velocity required for a standard catalyst to give the same conversion as the catalyst under test. In the case of enzymes, it is dependent on temperature, as in the case of ordinary chemical catalysts, but the activity is lost at temperatures above a certain limit due to the denaturation of enzyme protein. Therefore, it is considered that studies on temperature dependence caused by immobilization may provide useful information for comparisons of enzymes and chemical catalysts. 2, record 8, English, - catalytic%20activity
Record number: 8, Textual support number: 1 CONT
Most enzymes have molecular weights substantially higher than 17,000 and contain more than one peptide chain. Normally, these polypeptide subunits show no catalytic activity by themselves. It is essential that the subunits be fitted together exactly in a specific, three-dimensional conformation to preserve enzyme activity. 3, record 8, English, - catalytic%20activity
Record 8, French
Record 8, Domaine(s)
- Sciences biologiques
Record 8, Main entry term, French
- activité catalytique
1, record 8, French, activit%C3%A9%20catalytique
correct, feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
L'activité catalytique étant le caractère essentiel de tout enzyme, elle sert à en définir les unités. L'établissement de celles-ci suppose que la réaction catalysée est connue sans ambiguïté, que la quantité de produit formé est mesurable par une méthode analytique fiable, que la réaction est effectuée en présence d’une quantité non limitante de substrat et que l'observation de la réaction porte sur une période suffisamment courte pour que la concentration en substrat puisse y être considérée comme constante et celle du produit comme négligeable. Dans ces condition, l'unité standard ou unité internationale U. I. d’activité enzymatique est la quantité d’enzyme qui catalyse la transformation de 1 micromole de substrat par minute(dans des conditions de milieu, de pH et de température qu'il convient à chaque fois de préciser). 2, record 8, French, - activit%C3%A9%20catalytique
Record 8, Spanish
Record 8, Campo(s) temático(s)
- Ciencias biológicas
Record 8, Main entry term, Spanish
- actividad catalítica
1, record 8, Spanish, actividad%20catal%C3%ADtica
correct, feminine noun
Record 8, Abbreviations, Spanish
Record 8, Synonyms, Spanish
Record 8, Textual support, Spanish
Record number: 8, Textual support number: 1 DEF
Cociente entre la velocidad espacial que se usa para alcanzar una determinada conversión con un catalizador y la velocidad espacial necesaria para conseguir dicha conversión con un catalizador de referencia. 1, record 8, Spanish, - actividad%20catal%C3%ADtica
Record 9 - internal organization data 2010-12-23
Record 9, English
Record 9, Subject field(s)
- Biological Sciences
Record 9, Main entry term, English
- coupled enzyme system
1, record 9, English, coupled%20enzyme%20system
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
Enzymes are commonly used in clinical and research laboratories in coupled enzyme systems to determine the activity of another enzyme. Ex: the enzyme to be assayed, asparate aminotransferase, produces oxaloacetate which is a substrate for the second enzyme, malate dehydrogenase. This oxidizes its other substrate, reduced NAD, so that the reaction is readily followed by the decrease in extinction at 340 nm. If the assay is to be accurate the oxaloacetate must not accumulate; only if it is used as soon as it is formed will the rate of formation of NAD be a true measure of the activity of asparate aminotransferase. Since the second enzyme has to function with a minute substrate concentration, a great excess has to be present in the assay mixture. 1, record 9, English, - coupled%20enzyme%20system
Record number: 9, Textual support number: 1 OBS
It has been calculated that even with a 100-fold excess of the second enzyme, compared to the first, there was likely to be a 4% error in the initial rate measurements. Thus these coupled enzyme systems are likely to be very expensive, and it is essential that the second enzyme be free from any contaminating activities that might interfere. 2, record 9, English, - coupled%20enzyme%20system
Record 9, French
Record 9, Domaine(s)
- Sciences biologiques
Record 9, Main entry term, French
- réaction enzymatique couplée
1, record 9, French, r%C3%A9action%20enzymatique%20coupl%C3%A9e
correct, feminine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 CONT
Les réactions enzymatiques couplées peuvent servir au dosage du substrat S ou du produit P d’une enzyme ou encore à la mesure de l'activité d’une enzyme. Par exemple lorsque l'enzyme E, dont on mesure l'activité, n’ est pas une déshydrogénase à NAD [exposant+] ou NADP [exposant+], et que ni le substrat S, ni le produit P ne possèdent de propriétés spectrales particulières, on couple la première réaction à une deuxième, catalysée par une déshydrogénase dont P est le substrat. Dans certaines conditions, mesurer l'activité de la deuxième équivaut à mesurer l'activité de la première. La deuxième réaction est dite «réaction indicatrice» de la première, appelée «réaction principale». 2, record 9, French, - r%C3%A9action%20enzymatique%20coupl%C3%A9e
Record number: 9, Textual support number: 1 OBS
Dans ces conditions la réaction principale est limitante pour la seconde, les vitesses des deux réactions sont alors égales. Pour cela, le NADH, H (exposant+] doit être en large excès et l’activité potentielle de E2 doit être grandement supérieure à celle de E1 (environ cent fois plus). 1, record 9, French, - r%C3%A9action%20enzymatique%20coupl%C3%A9e
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 2003-11-18
Record 10, English
Record 10, Subject field(s)
- Biological Sciences
Record 10, Main entry term, English
- phosphorylase
1, record 10, English, phosphorylase
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 DEF
General term for an enzyme transferring an inorganic phosphate group to some organic acceptor, hence belonging to the transferases. 2, record 10, English, - phosphorylase
Record number: 10, Textual support number: 1 CONT
Some enzymes may exist in two forms of different activity which are interconvertible. Frequently, the mechanism of interconversion consists of phosphorylation .... One of the best known cases is glycogen phosphorylase, the enzyme that degrades glycogen into its glucose units, and which exists in two forms: a and b. Phosphorylase a is a tetrameric protein having the higher activity; phosphorylase b is a less active dimer. The b form can be converted into the a form by the convalent binding of four phosphate groups. 3, record 10, English, - phosphorylase
Record 10, French
Record 10, Domaine(s)
- Sciences biologiques
Record 10, Main entry term, French
- phosphorylase
1, record 10, French, phosphorylase
correct, feminine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 DEF
Toute enzyme qui catalyse la phosphorolyse d’un composé par l’acide phosphorique. 2, record 10, French, - phosphorylase
Record number: 10, Textual support number: 1 CONT
Le glycogène est dégradé par phosphorolyse. Ceci signifie que le glycogène subit des coupures au niveau des restes de glucose, non pas hydrolytiques(avec fixation d’une molécule d’eau), mais phosphorolytiques(fixation d’une molécule d’acide phosphorique). Cette réaction est catalysée par une enzyme, la phosphorylase, enzyme très complexe(Cori, Sutherland) qui a été préparée à partir du foie et du muscle. Les enzymes des deux origines sont d’ailleurs de structure très différente. 3, record 10, French, - phosphorylase
Record 10, Spanish
Record 10, Campo(s) temático(s)
- Ciencias biológicas
Record 10, Main entry term, Spanish
- fosforilasa
1, record 10, Spanish, fosforilasa
correct, feminine noun
Record 10, Abbreviations, Spanish
Record 10, Synonyms, Spanish
Record 10, Textual support, Spanish
Record number: 10, Textual support number: 1 DEF
Enzimas de la clase transferasa, que catalizan la escisión de enlaces mediante la adición de fosfato inorgánico. 2, record 10, Spanish, - fosforilasa
Record 11 - internal organization data 1992-08-10
Record 11, English
Record 11, Subject field(s)
- Biochemistry
Record 11, Main entry term, English
- enzyme-catalyzed reaction
1, record 11, English, enzyme%2Dcatalyzed%20reaction
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
Enzymes can catalyze in seconds complex sequences of reactions that would require days, weeks, or months of work in the chemical laboratory. Moreover, enzyme-catalyzed reactions proceed with 100 percent yields; there are no by-products. 1, record 11, English, - enzyme%2Dcatalyzed%20reaction
Record 11, French
Record 11, Domaine(s)
- Biochimie
Record 11, Main entry term, French
- réaction catalysée par une enzyme
1, record 11, French, r%C3%A9action%20catalys%C3%A9e%20par%20une%20enzyme
correct, feminine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
- réaction catalysée par l'enzyme 2, record 11, French, r%C3%A9action%20catalys%C3%A9e%20par%20l%27enzyme
correct, feminine noun
Record 11, Textual support, French
Record number: 11, Textual support number: 1 CONT
Quelquefois, on peut voir directement le produit de la réaction catalysée par l'enzyme, mais très fréquemment, on doit lui faire subir d’autres réactions chimiques avant de pouvoir l'observer au microscope. 2, record 11, French, - r%C3%A9action%20catalys%C3%A9e%20par%20une%20enzyme
Record number: 11, Textual support number: 1 OBS
"Enzyme" s’emploie au masculin comme au féminin. 3, record 11, French, - r%C3%A9action%20catalys%C3%A9e%20par%20une%20enzyme
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 1989-12-12
Record 12, English
Record 12, Subject field(s)
- Biological Sciences
Record 12, Main entry term, English
- random single-displacement reaction
1, record 12, English, random%20single%2Ddisplacement%20reaction
correct
Record 12, Abbreviations, English
Record 12, Synonyms, English
- random bisubstrate reaction 2, record 12, English, random%20bisubstrate%20reaction
correct
Record 12, Textual support, English
Record number: 12, Textual support number: 1 CONT
Random single-displacement reactions are catalyzed by many of the phosphotransferases. An example is the reaction catalyzed by creatine kinase.... In this reaction both ATP and creatine are bound to the active site, in either sequence, to form a ternary complex. Following transfer of the phosphate group from the bound ATP to the bound creatine both products leave, in either sequence. 1, record 12, English, - random%20single%2Ddisplacement%20reaction
Record 12, French
Record 12, Domaine(s)
- Sciences biologiques
Record 12, Main entry term, French
- réaction à déplacement simple aléatoire
1, record 12, French, r%C3%A9action%20%C3%A0%20d%C3%A9placement%20simple%20al%C3%A9atoire
correct, proposal, feminine noun
Record 12, Abbreviations, French
Record 12, Synonyms, French
- Réaction à simple déplacement du type "au hasard" 2, record 12, French, R%C3%A9action%20%C3%A0%20simple%20d%C3%A9placement%20du%20type%20%5C%22au%20hasard%5C%22
correct, feminine noun
Record 12, Textual support, French
Record number: 12, Textual support number: 1 CONT
Beaucoup de phosphotransfèrases catalysent des réactions à simple déplacement du type "au hasard". La réaction catalysée par la créatine kinase en est un exemple.(...) Dans cette réaction, l'ATP et la créatine se fixent sur le site actif dans n’ importe quel ordre pour former le complexe ternaire. Après le transfert du phosphate de l'ATP à la créatine, l'un et l'autre liés à l'enzyme, les produits quittent celui-ci dans un ordre quelconque. 1, record 12, French, - r%C3%A9action%20%C3%A0%20d%C3%A9placement%20simple%20al%C3%A9atoire
Record number: 12, Textual support number: 1 OBS
Expérimentalement, il est possible de différencier les réactions à deux substrats répondant au mécanisme "au hasard" de celles répondant à un mécanisme "ordonné". Si le dernier produit de la réaction inhibe l’ensemble de la réaction en entrant uniquement en compétition avec le premier substrat, la réaction est ordonnée. 1, record 12, French, - r%C3%A9action%20%C3%A0%20d%C3%A9placement%20simple%20al%C3%A9atoire
Record 12, Spanish
Record 12, Textual support, Spanish
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