<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial, helvetica, sans-serif;font-size:12pt;color:#000000;"><DIV>hi dear users</DIV>
<DIV>is there any command in gromacs to determine mass center of a protein? I mean to find out witch atom or residue stands for mass center.</DIV>
<DIV>thanks,</DIV>
<DIV>sajad</DIV></div></body></html>