Hello amber users'
I use tleap to load apdb file into amber, everything is ok, but when I check the leap.log file, I found there was warning, my pdb file is a RNA,all the nucleotides are canoncial, I don't know what's wrong, please help me.
** Warning: No sp2 improper torsion term for NB-CA-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
2009-09-08
qiaoyan
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Received on Mon Sep 14 2009 - 13:34:14 PDT
