Hi, <br>I have Zn atoms in my pdb for refinement. However, it failed with the following scripts. Do I have to create a libary of this heavy atom?<br>Number of atoms with unknown nonbonded energy type symbols: 6<br>    &quot;ATOM      1 Zn    Zn Z   1 .*.    Zn  &quot;<br>
    &quot;ATOM      2 Zn    Zn Z   2 .*.    Zn  &quot;<br>    &quot;ATOM      3 Zn    Zn Z   3 .*.    Zn  &quot;<br>    &quot;ATOM      4 Zn    Zn Z   4 .*.    Zn  &quot;<br>    &quot;ATOM      5 Zn    Zn Z   5 .*.    Zn  &quot;<br>
    &quot;ATOM      6 Zn    Zn Z   6 .*.    Zn  &quot;<br>  Time building chain proxies: 1.78, per 1000 atoms: 0.45<br><br>Here is the format of my pdb:<br>.....<br>ATOM      1 Zn    Zn Z   1      32.028  47.603  13.955  1.00 30.00          Zn<br>
ATOM      2 Zn    Zn Z   2      29.017  71.434   8.164  1.00 30.00          Zn<br>ATOM      3 Zn    Zn Z   3      39.223  49.330  -6.810  1.00 30.00          Zn<br>ATOM      4 Zn    Zn Z   4      24.811  89.144  -4.406  1.00 30.00          Zn<br>
ATOM      5 Zn    Zn Z   5      23.652  72.429   6.125  1.00 30.00          Zn<br>ATOM      6 Zn    Zn Z   6      30.132  63.054 -31.918  1.00 30.00          Zn<br>TER         7         Zn      6<br>ATOM     10 CL    CL L   1      20.125  63.405  10.719  1.00 30.00          CL<br>
TER        11        CL       1<br><br><br>