https://www.ncbi.nlm.nih.gov/Structure/pdb/3ERN
3ERN: Crystal structure of 2C-methyl-D-erythritol 2,4-clycodiphosphate synthase complexed with...
2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthaseCYTOSINE ARABINOSE-5'-PHOSPHATEGERANYL DIPHOSPHATESULFATE IONZINC ION