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  • Title: Determination of the isotope effect of the enzymatic oxidation of (R)Carnitine by displacement of the equilibrium via mass action.
    Author: Brendel K, Bressler R, Alizade MA.
    Journal: Z Naturforsch C Biosci; 1975; 30(4):438-41. PubMed ID: 241170.
    Abstract:
    An isotope effect of the dehydrogenation of (R) Carnitine [(R) 3-hydroxy-4-trimethylaminobutyric acid hydrochloride] catalyzed by (R) carnitine dehydrogenase [(R) carnitine: NAD oxidoreductase E.C. 1.1.1.108] from Pseudomonas aeruginosa was measured at different temperatures. It was found that k1H/k3H does not vary greatly with changes of temperature. The value of 3 for k1H/k3H measured at small initial conversions strongly indicated that the rate limiting step of the oxidation of (R) carnitine is the cleavage of the C-H bond at C3.
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