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° | The 'with <>X atoms closer Y among' operator counts close atoms |
For every atom in the first selection,
this operator counts the number of atoms in the second selection that are closer than Y Angstroms,
compares it with X and keeps the atom if the result is true.
Examples:
DelRes HOH with < 5 atoms closer 4.5 among Protein | Delete all waters with less than 5 protein atoms closer than 4.5 Angstroms |
DelRes Atom CA with 2 atoms closer 4 among Atom CA | Delete all residues whose CA atoms have 2 other CA atoms within 4 Angstroms |