[gmx-users] g_angle (Problem in Dihedral Angles)

[Alok]

Hello Gmx Usrs,
                          I am  calculating the Dihedral angle (chi1 
&chi 2)for a residue in my protein using the program g_angle. I was 
thinking that dihedral angle should be in the range -180 to +180  or 0 
to 360 degree . But i am getting values which are mixed up of these two 
range  like -185 degree or sometimes negative and positive   values both 
... can any one suggest me where is the problem? if i am doing anything 
wrong.

i used  g_angle     -f    ***.xtc   -s    ***.tpr   -n    ***.ndx     
-od    -ov   -type dihedral   command.
                                                                        
                                                                        
          thanks in advance
                                                                        
                                                                        
                 Alok Jain