[BioPython] HETATM records retrieval

[O.Doehring at cs.ucl.ac.uk]

Dear community,

how should HETATM records be retrieved via Biopython? I assume it should be 
somewhere on the chain or residue level:

- 
http://www.biopython.org/DIST/docs/api/public/Bio.PDB.Residue.Residue-class.html 
- http://biopython.org/DIST/docs/api/private/Bio.PDB.Chain.Chain-class.html

Using the following basic sample code :

        for model in self.structure.get_iterator():
            for chain in model.get_iterator():
                print chain.__repr__()
                for residue in chain.get_iterator():
                    print residue.__repr__()


applied to protein 1DHR (http://www.pdb.org/pdb/files/1dhr.pdb) we get:

<Chain id= >
<Residue GLU het=  resseq=5 icode= >
<Residue ALA het=  resseq=6 icode= >
<Residue ARG het=  resseq=7 icode= >
<Residue ARG het=  resseq=8 icode= >
<Residue VAL het=  resseq=9 icode= >
<Residue LEU het=  resseq=10 icode= >
...
<Residue ALA het=  resseq=238 icode= >
<Residue TYR het=  resseq=239 icode= >
<Residue PHE het=  resseq=240 icode= >


As one can see that are all ATOM records. Thanks.


Yours,

Orlando