targetRMSD
Compute positional RMSD to a reference structure.
Usage: targetRMSD [options] <target structure file> <structure files to compare>
where option is one or more of:
-orderedSel - If specified, treat the selections as ordered, i.e. use the order of ORs, and not the PSF atom order.
Options are zero or more of:
-selection <selection> - Atoms used in comparison. An atom selection enclosed in quotes. Default: '(not hydro and not resname ANI)'. -fitSelection <selection> - Atoms used to best-fit structures. An atom selection enclosed in quotes. Default: selection. -selection2 <selection> - Atoms used in comparison for structure 2... An atom selection enclosed in quotes. Default: selection. -fitSelection2 <selection> - Atoms used to best-fit structures 2... An atom selection enclosed in quotes. Default: fitSelection. -psf <psf filename(s)> - One or more PSF filenames. If more than one filename is specified, they must be either space-separated and enclosed in quotes, or colon-separated. If this option is the value none, or omitted, the PSF information is auto-generated. -psf2 <psf filename(s)> - One or more PSF filenames for structure 2... If more than one filename is specified, they must be either space-separated and enclosed in quotes, or colon-separated. If this option is the value none or omitted, the PSF information is auto-generated from the first input structure file. The presence of this option implies -diffSeq. -diffSeq - Target and comparison structures have different sequences - generate them separately. All comparison structure files must have the same sequence, though. -removeMissing - Remove from a selection atoms not present in the other, for cases where the selections (selection, selection2), (fitSel, fitSel2) do not have the same number of atoms. -noFit - Omit the fitting procedure. If not specified, the structures are best-fitted before pairwise RMSD calculation. -showRigid - Print full translation+rotation info for each rigid body fit. -write - For each comparison structure file, write the corresponding fitted coordinates to a file of the same name, appended with the suffix ".fit" (or the value specified by -fitSuffix). -fitSuffix <string> - Specify custom suffix (e.g., <string> = '.myfitsuffix') for the written fit structures. As side effect, structures will be written whether the -write option is specified or not. -model <model number> - Model number to use for the comparison structure file[s]. The default behavior is to compare to all models. -useBIOMT - use the PDB's BIOMT field to generate the full biological unit. Generated subunits will have segids consisting of the ChainID followed by the BIOMT number, starting with 2. [e.g. the first might be A2.] -perResidue - Report residue-by-residue RMSD values. -perStructure - Report per-structure RMSD values.
Structures are first best-fit, and then the rmsd is calculated. This is done for each pair of structures. The average, deviation, min and max rmsd are printed.
If the -noFit is given, or if fitSelection != selection, the magnitudes of rotation and CM translation to fit selection onto selection2 is also printed.