Ephedrine dehydrogenase

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In enzymology, ephedrine dehydrogenase (EC 1.5.1.18) is an enzyme that catalyzes the chemical reaction

 
 
H2O
H+
Reversible left-right reaction arrow with minor forward substrate(s) from top left, minor forward product(s) to top right, minor reverse substrate(s) from bottom right and minor reverse product(s) to bottom left
H2O
H+
 
+ NADH + CH3NH2
 

The two substrates of this enzyme are ephedrine and oxidised nicotinamide adenine dinucleotide (NAD+). This forms an imine intermediate which spontaneously hydrolyses to give (-)-phenylacetylcarbinol and methylamine.[1] The enzyme was isolated from a strain of the soil bacterium Pseudomonas putida which uses ephedrine as its sole source of carbon.[2]

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is (-)-ephedrine:NAD+ 2-oxidoreductase.

References

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