Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/2FM1 2FM1: Crystal structure of L-ALLO-threonine aldolase (tm1744) from Thermotoga maritima at 2.25 A... L-allo-threonine aldolaseCALCIUM IONCHLORIDE IONGLYCEROLSODIUM ION