Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/5JK6 5JK6: Phenylalanine hydroxylase from dictyostelium - apo form Phenylalanine-4-hydroxylaseFE (III) IONPIPERAZINE-N,N'-BIS(2-ETHANESULFONIC ACID) phenylalanineapoform