/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom N defined twice in residue <Residue SER het=  resseq=41 icode= > at line 1689.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom CA defined twice in residue <Residue SER het=  resseq=41 icode= > at line 1691.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom C defined twice in residue <Residue SER het=  resseq=41 icode= > at line 1693.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom O defined twice in residue <Residue SER het=  resseq=41 icode= > at line 1695.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom CB defined twice in residue <Residue SER het=  resseq=41 icode= > at line 1697.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom OG defined twice in residue <Residue SER het=  resseq=41 icode= > at line 1699.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom N defined twice in residue <Residue ARG het=  resseq=153 icode= > at line 2540.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom CA defined twice in residue <Residue ARG het=  resseq=153 icode= > at line 2542.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom C defined twice in residue <Residue ARG het=  resseq=153 icode= > at line 2544.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom O defined twice in residue <Residue ARG het=  resseq=153 icode= > at line 2546.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom CB defined twice in residue <Residue ARG het=  resseq=153 icode= > at line 2548.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom CG defined twice in residue <Residue ARG het=  resseq=153 icode= > at line 2550.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom CD defined twice in residue <Residue ARG het=  resseq=153 icode= > at line 2552.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom NE defined twice in residue <Residue ARG het=  resseq=153 icode= > at line 2554.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom CZ defined twice in residue <Residue ARG het=  resseq=153 icode= > at line 2556.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)
/usr/local/lib/python2.7/dist-packages/Bio/PDB/PDBParser.py:284: PDBConstructionWarning: PDBConstructionException: Atom NH2 defined twice in residue <Residue ARG het=  resseq=153 icode= > at line 2559.
Exception ignored.
Some atoms or residues may be missing in the data structure.
  % message, PDBConstructionWarning)