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3,4-dihydroxyphenylalanine reductive deaminase

The enzyme 3,4-dihydroxyphenylalanine reductive deaminase (EC 4.3.1.22, reductive deaminase, DOPA-reductive deaminase, DOPARDA; systematic name 3,4-dihydroxy-<small>L</small>-phenylalanine ammonia-lyase (3,4-dihydroxyphenylpropanoate-forming)) catalyses the following chemical reaction

<small>L</small>-dopa + 2 NADH 3,4-dihydroxyphenylpropanoate + 2 NAD<sup>+</sup> + NH<sub>3</sub>

This enzyme participates in <small>L</small>-phenylalanine catabolism in the anaerobic phototrophic bacterium Rhodobacter sphaeroides OU5.

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