From: Devanand T (
Date: Wed Jul 27 2016 - 02:33:10 CDT

Dear all,
            I have a question related to phosphoserine patches. I saw that
there are two options SP1 and SP2 for phosphoserine patches. SP1 is
monoanionic(-1 total charge) and SP2 is dianionic(-2 total charge). Which
one should I use for generating PSF file using psfgen?

Devanand T