Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/3LY0 3LY0: Crystal structure of metallo peptidase from Rhodobacter sphaeroides liganded with phosphinate... Dipeptidase AC. Metallo peptidase. MEROPS family M19(2R)-3-[(R)-[(1R)-1-aminoethyl](hydroxy)phosphoryl]-2-methylpropanoic acidZINC ION crystal structure