![](https://secure.gravatar.com/avatar/c59c83b372c7116eff6b73580ab053ed.jpg?s=120&d=mm&r=g)
Almost, but you need a separate scope (thing between braces) for each link, e.g.: refinement.pdb_interpretation.apply_cif_link { data_link = NAG-ASN residue_selection_1 = chain A and resname NAG and resid 900 residue_selection_2 = chain A and resname ASN and resid 329 } refinement.pdb_interpretation.apply_cif_link { data_link = NAG-NAG-b-D residue_selection_1 = chain A and resname NAG and resid 901 residue_selection_2 = chain A and resname ASN and resid 900 } Or alternatively: refinement.pdb_interpretation { apply_cif_link { data_link = NAG-ASN residue_selection_1 = chain A and resname NAG and resid 900 residue_selection_2 = chain A and resname ASN and resid 329 } apply_cif_link { data_link = NAG-NAG-b-D residue_selection_1 = chain A and resname NAG and resid 901 residue_selection_2 = chain A and resname ASN and resid 900 } } Ralf