[gmx-users] dssp in gromacs

[taveechai taveecharoenkool]

Dear all,
 i have a problem with do_dssp in gromacs. I had
downloaded the dssp program and did  as manual said
setenv DSSP /usr/.../../dssp
When i typed do_dssp -f xx.xtc -s xx.tpr -o xx.xpm,
the program didn't seem to end.
i also went to the dssp directory..
 typed >> ./dsspcmbi xx.pdb xxx.??? it gave me
something which is not in xpm format.. 
i don't know now. Please help me how to get secondary
structure as time?
thanks in advance 



       
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