[Bioperl-l] pdb files/structure system

[Douglas Kojetin]

Hi All-

Can anyone point me towards a tutorial dealing with using Bioperl's  
Structure system?  I'm able to read in a PDB file and print out a  
sequence, but I cannot figure out how to extract atoms or coordinates  
from the one line examples given here:

http://bioperl.org/Core/Latest/ 
bptutorial.html#iii.9.1_using_3d_structure_objects_and_reading_pdb_files 
_(structurei,_structure::io)

Using that example, I've tried setting $res to a number of things (1,  
MET1, MET-1, MET, etc.), but I think it's look for something more  
sophisticated (i.e. input from another system module)?

Is there a HOWTO under development (or in the near future) for the  
Structure system?

Thanks,
Doug