package require psfgen
 
topology top_all27_prot_lipid.inp

alias residue HIS HSE
alias atom ILE CD1 CD

segment A {
  first PROP
  pdb HERGA.pdb
  }

segment B {
  first PROP
  pdb HERGB.pdb
  }

segment C {
  first PROP
  pdb HERGC.pdb
  }

segment D {
  first PROP
  pdb HERGD.pdb
  }
	
# Load the coordinates for each segment.
coordpdb HERGA.pdb A
coordpdb HERGB.pdb B
coordpdb HERGC.pdb C
coordpdb HERGD.pdb D

writepsf HERG.psf
guesscoord
writepdb HERGS.pdb

exit