One paper in Acta. Cryst. (2006) D62, 1369-1374 described the same
problem of pseudo-symmetry. To lower the Rfactor they used (h+k+l=2n+1)
odd reflections for rigid body refinement and (h+k+l=2n) even
reflections for restrained refinement. By this way they could decrease
R/Rfree from (0.425/0.434) to (0.235/0.311).
Youssef
Anastassis Perrakis wrote:
On Sep 4, 2009, at 11:04, Ben Ammar Youssef wrote:
Hi all,
I just want to ask another question related to this topic:
Based on the example given by Jerry McCully and if the data has
alternate strong and weak reflections, how can we split it into two
different files; one containing the weak reflections and the other
containing the strong reflections?
I guess what you mean is to separate different layers along a
reciprocal direction in two files?
(and not simply strong vs weak reflections ...)
These are be possible to do in sftools with a bit of playing and rtfm,
but I am not sure where it would lead you.
Tassos
Youssef
*P** **please don't print this e-mail unless you really need to*
Anastassis (Tassos) Perrakis, Principal Investigator / Staff Member
Department of Biochemistry (B8)
Netherlands Cancer Institute,
Dept. B8, 1066 CX Amsterdam, The Netherlands
Tel: +31 20 512 1951 Fax: +31 20 512 1954 Mobile / SMS: +31 6 28 597791
