Hi, I am using amber8. I generated B-DNA with nucgen. When I read it
into xleap and try to save the parameters, I am getting several warnings
about sp2 impropers not found. This is standard DNA. I guess these
warnings can be ignored, but I wanted to make sure. I do not recall
seeing this in amber6.
thanks, Marcela
Warning: No sp2 improper torsion term for NB-C-CB-CB
atoms are: N7 C6 C5 C4
** Warning: No sp2 improper torsion term for N*-CB-CB-NC
atoms are: N9 C5 C4 N3
** Warning: No sp2 improper torsion term for NB-C-CB-CB
atoms are: N7 C6 C5 C4
** Warning: No sp2 improper torsion term for N*-CB-CB-NC
atoms are: N9 C5 C4 N3
** Warning: No sp2 improper torsion term for NB-CA-CB-CB
atoms are: N7 C6 C5 C4
** War
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Received on Tue Oct 11 2005 - 22:53:00 PDT
