Re: [ccp4bb] Diffraction data with big rotation angle

2013-03-14 Thread Jim Pflugrath
@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Diffraction data with big rotation angle Hi Tim, I only tried HKL2000, and index with different resolution and different number of images. I am not quite familiar with XDS or d*trek. One thing I am not sure is if this large oscillation angle will cause problem in

Re: [ccp4bb] Diffraction data with big rotation angle

2013-03-14 Thread Niu Tou
Hi Tim, I only tried HKL2000, and index with different resolution and different number of images. I am not quite familiar with XDS or d*trek. One thing I am not sure is if this large oscillation angle will cause problem in indexing? If this is true, any method to overcome it? The situation I met

Re: [ccp4bb] Diffraction data with big rotation angle

2013-03-14 Thread James Holton
I had a similar situation once where I intentionally collected 5-degree images from a salt crystal. I found this page: http://strucbio.biologie.uni-konstanz.de/xdswiki/index.php/Small_molecules most helpful. Particularly the "DELPHI" keyword. Thanks to Kay Diederichs for pointing this out to

Re: [ccp4bb] Diffraction data with big rotation angle

2013-03-14 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dear Niu, could you let us know more about what you have already tried? - - use more images, maybe all images for indexing - - try a different program: xds instead of mosflm instead of hkl200 instead of d*trek instead of xds depending what you h

Re: [ccp4bb] Diffraction data with big rotation angle

2013-03-13 Thread Felix Frolow
Use HKL2000 Dr Felix Frolow Professor of Structural Biology and Biotechnology, Department of Molecular Microbiology and Biotechnology Tel Aviv University 69978, Israel Acta Crystallographica F, co-editor e-mail: mbfro...@post.tau.ac.il Tel: ++972-3640-8723 Fax: ++972-3640-9407 Cellular: 054

[ccp4bb] Diffraction data with big rotation angle

2013-03-13 Thread Niu Tou
Dear colleagues, We have some diffraction data from small peptide crystals, the shape of diffraction spots looks normal, and resolution is beyond 2A. The data were collected with 5 degree rotation per image. Later on we found it is hard to do index. Does anybody know some skills to figure this pro