====== PyMol ======

==== Removing parts of PDB files ====
  * Load a PDB file
  * Select atoms you want to retain
    * Select // Display -> Sequence // then select residues at the top of the screen to quickly select large sections of the molecule
  * In the // (Sele)// object click on the // 'A'// then choose //create object//
  * Select // File -> Save Molecule // to save this new object as a PDB file