Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/1NF5 1NF5: Crystal Structure Of Lactose Synthase, Complex With Glucose ALPHA-LACTALBUMINBETA-1,4-GALACTOSYLTRANSFERASEBeta-d-glucoseCalcium IonTetraethylene Glycol crystal structure lactose complex glucose