Traceback (most recent call last):
  File "/home/rpdock/mc/MC_DNA.py", line 628, in <module>
    s, datas = write_all_atoms (datas, step_real, cal.split()[0], plik, pars, historyT, historyR,rna)
  File "/home/rpdock/mc/MC_DNA.py", line 360, in write_all_atoms
    all_at_ch_rna, all_at_ch_prot = all_atom (plik, pars, transl, rotation, rna)
  File "/home/rpdock/mc/MC_DNA.py", line 297, in all_atom
    pro_ch, rna_ch = check_chains(plik, pars)
  File "/home/rpdock/mc/MC_DNA.py", line 103, in check_chains
    struc = pars.get_structure('native', plik)
  File "/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py", line 83, in get_structure
    self._parse(handle.readlines())
  File "/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py", line 109, in _parse
    self.trailer = self._parse_coordinates(coords_trailer)
  File "/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py", line 219, in _parse_coordinates
    structure_builder.init_residue(resname, hetero_flag, resseq, icode)
  File "/usr/local/lib/python2.7/dist-packages/Bio/PDB/StructureBuilder.py", line 156, in init_residue
    residue=Residue(res_id, resname, self.segid)
  File "/usr/local/lib/python2.7/dist-packages/Bio/PDB/Residue.py", line 30, in __init__
    Entity.__init__(self, id)
  File "/usr/local/lib/python2.7/dist-packages/Bio/PDB/Entity.py", line 23, in __init__
    self.full_id=None
MemoryError