https://www.ncbi.nlm.nih.gov/Structure/pdb/4CLD
4CLD: Crystal structure of pteridine reductase 1 (PTR1) from Trypanosoma brucei in ternary complex...
PTERIDINE REDUCTASE 12-amino-4-thiomorpholino-7H-pyrrolo[2,3-d]pyrimidine-5-carbonitrileACETATE IONNADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE