TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
INTERMEDIATE FORMATION [2 records]
Record 1 - internal organization data 2011-01-10
Record 1, English
Record 1, Subject field(s)
- Biological Sciences
Record 1, Main entry term, English
- covalent catalysis
1, record 1, English, covalent%20catalysis
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- intermediate formation 2, record 1, English, intermediate%20formation
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Catalysis where an electrophilic or nucleophilic group on the peptide chain of the enzyme forms a covalent bond with the substrate. This highly reactive covalent intermediate between the enzyme and the substrate has a high probability of entering the transition state permitting the substrate to find a lower pass over the activation-energy barrier. 2, record 1, English, - covalent%20catalysis
Record number: 1, Textual support number: 1 CONT
Many of the examples of covalent catalysis in enzyme-catalysed reactions involve attack by a nucleophilic side chain at an electron-deficient centre in the substrate; such attack is termed nucleophilic catalysis. Examples of nucleophilic catalysis are provided by chymotrypsin and fructose-bisphosphate aldolase, in these cases the nucleophilic side chains are those of serine and lysine respectively. Other types of side chain which have been found to participate in nucleophilic catalysis include cysteine ... and histidine.... 3, record 1, English, - covalent%20catalysis
Record 1, French
Record 1, Domaine(s)
- Sciences biologiques
Record 1, Main entry term, French
- catalyse covalente
1, record 1, French, catalyse%20covalente
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La catalyse covalente est utilisée par certains enzymes pour augmenter la vitesse d'une réaction chimique, en formant un intermédiaire covalent hautement réactif entre l'enzyme et le substrat qui possède une grande probabilité d'entrer dans l'état transitoire; ceci permet au substrat de trouver un passage plus bas pour traverser la barrière d'énergie d'activation. La catalyse covalente est de règle dans les réactions auxquelles participent les coenzymes : ainsi, le pyridoxal-phosphate participe à la décarboxylation oxydative des acides aminés par l'intermédiaire d'une base de Schiff, aisément mise en évidence par son spectre optique caractéristique. La plupart des transferts de phosphyryls à partir de l'ATP exigent une phosphorylation intermédiaire de l'enzyme, en général sur un résidu histidine, etc. 2, record 1, French, - catalyse%20covalente
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2000-02-09
Record 2, English
Record 2, Subject field(s)
- Geology
Record 2, Main entry term, English
- intermediate formation
1, record 2, English, intermediate%20formation
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record 2, French
Record 2, Domaine(s)
- Géologie
Record 2, Main entry term, French
- formation intermédiaire
1, record 2, French, formation%20interm%C3%A9diaire
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
[...] modérément consolidée. 1, record 2, French, - formation%20interm%C3%A9diaire
Record 2, Spanish
Record 2, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2024
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada
Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools
The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies
Access Translation Bureau glossaries and vocabularies.
- Date Modified: