**************************************************************************
                             center command
                        Leif Laaksonen CSC 1999
			Timm Uhlmann       2003
**************************************************************************
#
# center the system according to the given atoms (segment, residue, atom) 
# or coordinates
# 
#

cent$er  syst$em   Seg Res Atm 
                   Xcoord Ycoord Zcoord
	 rota$tion Seg Res Atm

**************************************************************************
LUL/1999
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