https://www.ncbi.nlm.nih.gov/Structure/pdb/3DJF
3DJF: Crystal Structure of Schistosoma mansoni Purine Nucleoside Phosphorylase in a complex with...
Purine-nucleoside phosphorylase2-amino-7-(pyridin-3-ylmethyl)-3,5-dihydro-4H-pyrrolo[3,2-d]pyrimidin-4-oneDIMETHYL SULFOXIDESULFATE ION