[phenixbb] native Patterson peak

Juergen Bosch jbosch at u.washington.edu
Thu May 1 10:00:30 PDT 2008

How certain are you regarding your space group ?
The native peak at almost 0 -0.5 0 is suspicious. If you used HKL for 
indexing try something else with multiple images separated by e.g. 15 
degrees and see if you can process your dataset in a different space group.


David Garboczi wrote:

>We have datasets measured on crystals of a 19 kD protein that are 
>P212121, with cell constants of 66, 75, 136.
>Matthew's considerations say 3, 4, or 5 copies per au are probable.
>xtriage finds a native peak at (0.0, -0.5, 0.036) that is 31 in 
>height (origin=100)
>No self-rotation function peaks in xprep, that I can understand.
>Is this clearly translational symmetry that is making MR difficult?
>Hints as to how to go forward are welcome.

Jürgen Bosch
University of Washington
Dept. of Biochemistry, K-426
1705 NE Pacific Street
Seattle, WA 98195
Box 357742
Phone: 	 +1-206-616-4510
FAX:	 +1-206-685-7002
Web:     http://faculty.washington.edu/jbosch

More information about the phenixbb mailing list