Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/9AYU 9AYU: Structure of the A type blood alpha-D-galactosamine galactosaminidase D463A mutant from... A type blood alpha-D-galactosamine galactosaminidase1,2-ETHANEDIOLCHLORIDE IONMANGANESE (II) IONZINC ION