Although in the shikimate pathway arogenate and prephenate dehydrogenase catalyze different reactions, they can at times be used interchangeably.

[8] Bacteria organisms (examples): Acenitobacter calcoaceticus, Fischerella sp., Flavobacterium so., Comamonas testosteroni, and nostoc sp.

Plant organisms: phaseolus coccineus, phaseolus vulgaris, vicia faba, vigna radiata Present in the shikimate pathway, in the pathway to synthesize tyrosine (a non-essential amino acid in both plants and animals).

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor.

However, in haemophilus influenzae, prephenate dehydrogenase is fused with the enzyme chorismate mutase.