Data items in the PHASING_MIR category record details about the phasing of the structure, when methods involving isomorphous replacement are involved. All isomorphous based techniques are subsumed in this category, including single isomorphous replacement (SIR), multiple isomorphous replacement (MIR), single or multiple isomorphous replacement plus anomalous scattering (SIRAS, MIRAS).
_phasing_MIR.method ; Standard phase refinement (Blow & Crick, 1959) ;