Protein
Aromatic dipeptide epimerase
Organism
Herpetosiphon aurantiacus (strain ATCC 23779 / DSM 785 / 114-95)
Function
Has epimerase activity with a variety of hydrophobic dipeptides (in vitro). Enzyme activity is highest with L-Phe-L-Tyr, but is still relatively low, suggesting that L-Phe-L-Tyr is not the physiological substrate.
Similarity
Belongs to the mandelate racemase/muconate lactonizing enzyme family.
Sequence
MPTTIQAISAEAINLPLTEPFAIASGAQAVAANVLVKVQLADGTLGLGEAAPFPAVSGETQTGTSAAIERLQSHLLGADVRGWRKLAAMLDHAEHEAAAARCGLEMAMLDALTRHYHMPLHVFFGGVSKQLETDMTITAGDEVHAAASAKAILARGIKSIKVKTAGVDVAYDLARLRAIHQAAPTAPLIVDGNCGYDVERALAFCAACKAESIPMVLFEQPLPREDWAGMAQVTAQSGFAVAADESARSAHDVLRIAREGTASVINIKLMKAGVAEGLKMIAIAQAAGLGLMIGGMVESILAMSFSANLAAGNGGFDFIDLDTPLFIAEHPFIGGFAQTGGTLQLADVAGHGVNLA