topology top_all27_prot_na.inp

alias residue HOH TIP3
alias atom HOH O OH2
alias atom ILE CD1 CD

segment HISH {
	first NTER
	last CTER
	pdb hisH_cyg_mod.pdb
}

coordpdb hisH_cyg_mod.pdb HISH

guesscoord

writepsf hisH_covsub.psf
writepdb hisH_covsub.pdb

