2018
DOI: 10.1063/1.5022359
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Reaction fronts of the autocatalytic hydrogenase reaction

Abstract: We have built a model to describe the hydrogenase catalyzed, autocatalytic, reversible hydrogen oxidation reaction where one of the enzyme forms is the autocatalyst. The model not only reproduces the experimentally observed front properties, but also explains the found hydrogen ion dependence. Furthermore, by linear stability analysis, two different front types are found in good agreement with the experiments.

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Cited by 3 publications
(10 citation statements)
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“…Another enzyme exhibiting autocatalytic kinetics is hydrogenase, a metalloenzyme catalyzing the reaction H 2 = 2H + + 2e – . The mechanism of autocatalysis differs from the simple acid–base activation/deactivation shown for urease and is thought to be connected to redox forms . The hydrogenase reaction has been observed to produce reaction fronts and oscillations in a thin layer reaction–diffusion experiment via a mechanism that is not yet fully understood …”
Section: Complex Nonlinear Behavior In Artificial Ernsmentioning
confidence: 99%
“…Another enzyme exhibiting autocatalytic kinetics is hydrogenase, a metalloenzyme catalyzing the reaction H 2 = 2H + + 2e – . The mechanism of autocatalysis differs from the simple acid–base activation/deactivation shown for urease and is thought to be connected to redox forms . The hydrogenase reaction has been observed to produce reaction fronts and oscillations in a thin layer reaction–diffusion experiment via a mechanism that is not yet fully understood …”
Section: Complex Nonlinear Behavior In Artificial Ernsmentioning
confidence: 99%
“…A modell felállításához a redoxireakciók és protonálódási/deprotonálódási folyamatok eredményeként létrejövő, lehető legkevesebb enzimformát vettük figyelembe Az így kapott modell részlépései a következőképpen alakultak [147]:…”
Section: A Hidrogenáz Autokatalitikus Enzimreakcióunclassified
“…Thiocapsa roseopersicinából izolált, HynSL enzim által katalizált folyamat sematikus rajza az elektronakceptorként szolgáló benzil-viologén jelenlétében. E a szabad enzim, EH −1 − ennek deprotonált variánsa, EH 2 a teljesen redukált enzim, EH − ennek deprotonált formája, E a H − az autokatalitikus enzimkonformer, E a H 2 ennek protonált formája, EH a részlegesen redukált enzim, míg E − ennek deprotonált formája, M az elektronakceptor, míg M − az elektronakceptor deprotonált formája [147].…”
Section: A Hidrogenáz Autokatalitikus Enzimreakcióunclassified
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