Dear Ursula - (Disclaimer: I usually use phaser in ccp4, and I don't have the latest version. Not everything I say may be applicable.) If you're running phaser in the default mode, the packing test looks at the best (fewest clashes) solution, then screens all other solutions relative to that. If your best solution has no clashes, then even solutions below your clash threshold (e.g. 20 clashes) may get filtered out. I find this behavior annoying, and I explicitly tell phaser to accept all solutions below X number of clashes. I'm not sure how to make Phaser do this in Phenix, but I see in the "Phaser-MR" window that there is an "Other Settings" button; in the window this pops up, you can try selecting "allow" for the packing function then "20" for the cutoff. This should work... Hope that helps, Matt On 2/25/13 7:39 PM, Ursula Schulze-Gahmen wrote:
Could somebody explain to me how phaser decides if there is a solution. When I look at the log file there are a few solutions in the translation function that have fewer than the allowed clashes, but they are still not recognized as potential solutions. Why is that. Is there another parameter that I should be looking at?
Ursula
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