= {
" ",
"Usage: bmolhel [options] in.pdb out.pdb",
"---------------------------------------",
"Performs helical symmetry operations on molecules.",
" ",
"Actions:",
"-generate 5,7 Generate new molecules downwards and upwards.",
"-translate 0,-50,22 Translate (angstrom)",
" ",
"Parameters:",
"-verbose 7 Verbosity of output.",
"-origin 10,-10,20 Origin for rotation (default 0,0,0, can be \"center\" for COM).",
"-helix 25.3,67.1 Helical rise and angle.",
"-reference 0,1.5,-0.2,35 Reference symmetry axis and rotation angle (default 0,0,1,0).",
"-rename D Rename molecules from the given letter.",
" ",
"Input:",
"-parameters parm.star Atomic properties parameter file (default atom_prop.star).",
" ",
NULL
}