"Ellipticity at 222 nm" provided by g_helix
g_helix reports the number of helical residues instead of ellipticity at 222 nm in the cd222.xvg file.
David recommended the following suggestion in the email list.
Check the routine ellipticity in src/tools/hxprops.c
Right now what is plotted is the number of helical residues. There is
also a magic number w in the data. If you have the Hirst and Brooks (JMB 1994 243 173-178)
paper handy I'm sure you can fix the routine. Please send me back the