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R-free very close to R

Gerard Kleywegt gerard at xray.bmc.uu.se
Wed Jun 26 15:57:06 EST 1996


In article <4qc0g8$k03 at dart.cc.purdue.edu>, barani at dart.cc.purdue.edu
(Raman) wrote:

?>  I get 
?> 
?>        R-free = 20.4 and R = 20.3 for (TEST 10%) and
?> 
?>        R-free = 20.6 and R = 20.3 for (TEST 20%).
?> 
?>  The geometry is ok (0.017 and 3.2).
?>  
?>  Can R-free be so close to R ? Is the R-free behavior 
?>  with TEST % correct?
?> 
?>  I know that the structure is correct as it is a heavy
?>  atom complex of a solved native enzyme.
?> 
?>  chumma at purdue.edu

is this a virus ???

if not, have you done simulated annealing to uncouple R and Rfree ?

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Gerard J. Kleywegt
Department of Molecular Biology, Biomedical Centre
Uppsala University, Uppsala, SWEDEN
(mailto:gerard at xray.bmc.uu.se)



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