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[ccp4bb]: How to average coordinates?

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Hi All:

I'm looking for a program that can average several .pdb files
to give the average structure.  I got these .pdb files from
several different anneal runs using CNS.  I then ran CNS's
optimize_average.inp, which says that it...
"Finds optimum combination of coordinate files which produce
minimum free R-value from averaged structure factors."

This tells me which of my .pdb files to average to get the
best Rfree... but doesn't output a .pdb file with the
averaged structures.   hummm...

So, can anyone tell me a program that I can average my
structures, now that I know which will give the best Rfree?


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