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Cinetica Enzimatica
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Cinetica Enzimatica
Enzima
- catalizador biologico
- permite progreso de reaccion con una menor barrera de energia
- en consecuencia la velocidad de reaccion aumenta
- sitio activo
- en donde
- ocurre la reaccion
- se une el sustrato (los reactivos)
- se puede unir el inhibidor en inhibicion competitiva
- en donde
INHIBICION
- COMPETITIVA
- sustrato e inhibidor compiten por sitio activo
- si aumento [S] puedo favorecer la reaccion
- inhibitors block the substrate from binding to the active site and forming ES complex
- caracteristicas de grafica
- Jm doesn´t change
- same ordenada al origen
- Km increases
- it becomes less negative
- slope increases
- Jm doesn´t change
- NO COMPETITIVA
- Non-Competitive Inhibitors
- bind to other site other than the active site
- they do not prevent the substrate from binding to the active site
- Km remains the same
- they cannot be overcome by the addition of substrate
- they lower Jm
- due to the inability of the reaction to proceed as efficiently
- caracteristicas de la grafica
- pendiente aumenta
- cuando aumenta CI
- ordenada al origen aumenta
- Jm decreases
- Km remains the same
- pendiente aumenta
- Non-Competitive Inhibitors
- INCOMPETITIVA
- uncompetitive inhibitor binds only to the ES complex
- Jm decreases
- due to less availability of the active complex
- Km decreases
- due to better binding efficiency
- caracteristicas de la grafica
- pendiente aumenta
- ordenada al origen aumenta
- Km disminuye
- COMPETITIVA
Ecuacion de Michaelis
- Jo: velocidad inicial
- Jm: velocidad maxima (que puede alcanzar la reaccion enzimatica sin inhibicion)
- Km: constante de Michaelis
- concentracion a la cual la velocidad maxima (Jm) se reduce a la mitad
- Cs: concentracion sustrato
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- finals Physical Chemistry Mind Map on Cinetica Enzimatica, created by Andrea Dacar on 30/10/2013.
- Created by
- Andrea Dacar
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