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