Wont REFMAC create a linr dictionary for you to use?EleanorOn 1 July 2016 at 12:29, Ian Tickle <[log in to unmask]> wrote:-- IanCheersI take it that real-space refine of a covalently linked ligand (to CYS SG) using _chem_link* in CIF & LINK in PDB is not supported, i.e. the link info is ignored, and it's not possible to refine the CYS + the ligand? Either that or I haven't understood how to make it work.Hello