https://www.ncbi.nlm.nih.gov/Structure/pdb/1DQA
1DQA: COMPLEX OF THE CATALYTIC PORTION OF HUMAN HMG-COA REDUCTASE WITH HMG, COA, AND NADP+
PROTEIN (HMG-COA REDUCTASE)3-HYDROXY-3-METHYL-GLUTARIC ACIDCOENZYME ANADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE