Hi all,
i guess this is a really silly question but here goes- i am trying to run 
pca analysis exclusively on the active site of a protein after dynamics. 
thus in ptraj i need to identify the residues that make up the active site. 
I was wondering do I quote specific aas like ALA 561 from the pdb file, or 
do i need to quote the individual atoms that make it up? or is there some 
other way of doing it altogether- in the sense that when i code for backbone 
atoms, i do not use a pdb reference file.
THANKS
claire 
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Received on Tue Jan 17 2006 - 06:10:05 PST