TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
V/2 [1 record]
Record 1 - internal organization data 2011-07-05
Record 1, English
Record 1, Subject field(s)
- Biochemistry
- Biological Sciences
Record 1, Main entry term, English
- half the maximal velocity
1, record 1, English, half%20the%20maximal%20velocity
correct
Record 1, Abbreviations, English
- V/2 2, record 1, English, V%2F2
correct
- 1/2Vmax 2, record 1, English, 1%2F2Vmax
correct
Record 1, Synonyms, English
- half-maximal velocity 3, record 1, English, half%2Dmaximal%20velocity
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Velocity of an enzyme reaction when the substrate concentration reaches a concentration equal to the Michaelis-Menten constant (Km). 2, record 1, English, - half%20the%20maximal%20velocity
Record number: 1, Textual support number: 1 CONT
The substrate concentration yielding half-maximal velocity provides a useful index for the analysis of some enzyme regulatory mechanisms... Some allosteric enzymes respond to the binding of a modulator with a change in the apparent Km for the substrate, without change in Vmax. A negative modulator will then produce an increase in the apparent Km and a positive modulator a decrease in the apparent Km. Here the term "apparent Km" refers to the substrate concentration giving half-maximal velocity; it cannot be used to calculate enzyme since the vo-vs.-(s) relationship is not a rectangular hyperbola, as required by the Michaelis-Menten assumptions and equations. 4, record 1, English, - half%20the%20maximal%20velocity
Record number: 1, Textual support number: 1 OBS
V/2 and 1/2Vmax are abbreviations of half the maximal velocity. 2, record 1, English, - half%20the%20maximal%20velocity
Record 1, French
Record 1, Domaine(s)
- Biochimie
- Sciences biologiques
Record 1, Main entry term, French
- moitié de la vitesse maximale
1, record 1, French, moiti%C3%A9%20de%20la%20vitesse%20maximale
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- Vmax/2 2, record 1, French, Vmax%2F2
correct, feminine noun
- 1/2 Vm 3, record 1, French, 1%2F2%20Vm
correct, feminine noun
- VM/2 3, record 1, French, VM%2F2
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Vitesse d'une réaction enzymatique lorsque la concentration en substrat est égale à la constante de Michaelis (Km). 2, record 1, French, - moiti%C3%A9%20de%20la%20vitesse%20maximale
Record number: 1, Textual support number: 1 CONT
L'inhibition compétitive étant réversible, la vitesse maximale correspondant à une quantité élevée de substrat est la même qu'en l'absence d'inhibiteur. Par ailleurs, l'enzyme étant partiellement combinée à l'inhibiteur, la quantité de substrat nécessaire pour obtenir la moitié de la vitesse maximale augmente, donc la Km est plus élevée. 4, record 1, French, - moiti%C3%A9%20de%20la%20vitesse%20maximale
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Bioquímica
- Ciencias biológicas
Record 1, Main entry term, Spanish
- mitad de la velocidad maxima
1, record 1, Spanish, mitad%20de%20la%20velocidad%20maxima
correct, feminine noun
Record 1, Abbreviations, Spanish
- Vmax/2 1, record 1, Spanish, Vmax%2F2
correct, feminine noun
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
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