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Pseudo atoms

A 'P' line should look like:

P Pseudo_atom_index Pseudo_atom_type Numb_real_atoms Real_atom_indices

These parameters encode the pseudo atom information as given in Section 5.3.2. Pseudo_atom_index is the atom index, which should be a number between NATM+1 and NATM+NPSEUDO, where NATM is the number of real atoms in the model, and NPSEUDO the number of pseudo atoms. Pseudo_atom_type is the numerical pseudo atom type, as given in Table B.3. The pseudo atom is defined as an average of Numb_real_atoms, of indices Real_atom_indices. For example,

P    144   1   3    120 121 122
creates a pseudo atom at index 144, which is a gravity center of the 3 atoms 120, 121 and 122.


Table B.3: Numerical pseudo atom types
Numeric pseudo atom type Pseudo atom type
1 pseudo_atom.gravity_center
2 virtual_atom.ch1
3 virtual_atom.ch1a
4 pseudo_atom.ch2
5 virtual_atom.ch2
6 pseudo_atom.ch31
7 pseudo_atom.ch32



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Next: Symmetry restraints Up: Restraints file Previous: Excluded pairs   Contents   Index
Automatic builds 2009-06-12