Dear all, I have a question regarding the definition of the ADP groups. I'm refining a structure using a different isotropic B for each domain, while applying TLS for some mobile domains (I'm also using NCS restraints for all equivalent domains). In the refinement log file, however, the isotropic B of the domains refined with TLS, as reported in the "TLS refinement" section, is equal to the B of the starting model in all refinement macro cycles. It seems, therefore, that the isoB for the TLS groups in not refined, although I've included these domains in the .adp.group definitions (the log file actually confirms that there are 7 adp groups). Is it possible to refine TLS and isotropic B's on the same part of a model? I include the input file below. Thanks for any suggestions, Roeland Boer. refinement.input.xray_data.labels=F refinement.refine.strategy=tls+individual_sites+group_adp refinement.refine.adp.tls="chain A and resid 4:132" refinement.refine.adp.tls="chain B and resid 4:132" refinement.refine.adp.tls="chain C and resid 4:132" refinement.refine.adp.tls="chain X and resid 4:132" refinement.refine.adp.tls="chain Y and resid 4:132" refinement.refine.adp.tls="chain Z and resid 4:132" refinement.refine.adp.one_adp_group_per_residue=False refinement.refine.adp.group="resid 133:203" refinement.refine.adp.group="chain A and resid 4:132" refinement.refine.adp.group="chain B and resid 4:132" refinement.refine.adp.group="chain C and resid 4:132" refinement.refine.adp.group="chain X and resid 4:132" refinement.refine.adp.group="chain Y and resid 4:132" refinement.refine.adp.group="chain Z and resid 4:132" refinement.main.number_of_macro_cycles=4 refinement.input.xray_data.low_resolution=20.0 refinement.input.xray_data.high_resolution=3.4 refinement.main.ncs = True refinement.ncs.find_automatically = False refinement.ncs.restraint_group { reference = chain A and resid 133:203 selection = chain B and resid 133:203 selection = chain C and resid 133:203 selection = chain X and resid 133:203 selection = chain Y and resid 133:203 selection = chain Z and resid 133:203 } refinement.ncs.restraint_group { reference = chain B and resid 4:132 selection = chain A and resid 4:132 selection = chain C and resid 4:132 selection = chain X and resid 4:132 selection = chain Y and resid 4:132 selection = chain Z and resid 4:132 } refinement.output.prefix=test