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REACTION PING-PONG [1 record]
Record 1 - internal organization data 2011-01-12
Record 1, English
Record 1, Subject field(s)
- Biological Sciences
Record 1, Main entry term, English
- double-displacement reaction
1, record 1, English, double%2Ddisplacement%20reaction
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- ping-pong reaction 2, record 1, English, ping%2Dpong%20reaction
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Bisubstrate reaction in which one substrate must be bound and one product released before the entry of the second substrate and the departure of the second product. In such reactions the first substrate reacts with the enzyme to yield a chemically modified form of the latter, usually by transfer of a functional group. In the second step this functional group is transferred from the enzyme to the second substrate. 2, record 1, English, - double%2Ddisplacement%20reaction
Record number: 1, Textual support number: 1 CONT
Most two-substrate reactions can be put into one of two classes, single-displacement reactions and double-displacement reactions, which can generally be distinguished by kinetic analysis ... In bisubstrate reactions of the double-displacement type, one substrate must be bound and one product released before the entry of the second substrate and the departure of the second product. 1, record 1, English, - double%2Ddisplacement%20reaction
Record 1, French
Record 1, Domaine(s)
- Sciences biologiques
Record 1, Main entry term, French
- réaction à double déplacement
1, record 1, French, r%C3%A9action%20%C3%A0%20double%20d%C3%A9placement
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- réaction ping-pong 2, record 1, French, r%C3%A9action%20ping%2Dpong
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Réaction à deux substrats où un substrat doit être fixé et un produit libéré avant l'entrée du second substrat et le départ du second produit. Dans de telles réactions, le premier substrat réagit avec l'enzyme pour produire une forme chimiquement modifiée de ce dernier, habituellement par transfert d'un groupement fonctionnel. Dans la seconde étape, ce groupe fonctionnel est transféré de l'enzyme au second substrat. 2, record 1, French, - r%C3%A9action%20%C3%A0%20double%20d%C3%A9placement
Record number: 1, Textual support number: 1 CONT
Un exemple d'une [...] réaction à double déplacement est donné par l'aspartate aminotransférase, encore appelée aspartate transaminase. [...] L'aspartate se combine en premier avec l'enzyme. Le radical aminé de l'aspartate est ensuite transféré au groupement prosthétique de l'enzyme, le phosphate de pyridoxal. Le premier produit, l'oxaloacétate, quitte alors le site actif et est remplacé par le second substrat, l'[alpha]-cétoglutarate, sur lequel le radical aminé est transféré pour former le glutamate qui, ensuite, quitte le site actif. 1, record 1, French, - r%C3%A9action%20%C3%A0%20double%20d%C3%A9placement
Record 1, Spanish
Record 1, Textual support, Spanish
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