Re: [ccp4bb] on the contour level in Coot

2015-05-13 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dear Smith, you need to attach a mouse with a scroll wheel to your computer. Once you open a map in coot, you keep on rotation the wheel away from you until the number in brackets reaches a value of 6-7. That way you can make the sigma so high. Enjoy

[ccp4bb] on the contour level in Coot

2015-05-13 Thread Smith Liu
Dear All, For the contour level in the Properties in the Dssplay of the Display Manager in Coot, the contour level should be exacly the sigma value we see in the published crystallography paper, am I right? But I have paid attention to a paper which has a sigma level of 6-7 for its densty. Wil

Re: [ccp4bb] on the contour level in Coot

2015-05-03 Thread Ian Tickle
Hi, as I understand your question, you're asking whether the EM density values in a cryo-EM map ('MRC' format) would be expected to be comparable with the corresponding electron density values in a CCP4 XRD map obtained by FT of the map coefficients from an MTZ X-ray reflexion file at the same nomi

Re: [ccp4bb] on the contour level in Coot

2015-05-03 Thread Pavel Afonine
Hi, On Sun, May 3, 2015 at 4:15 AM, Smith Liu wrote: > If for both a mtz density and mrc map I set the contour level as 0.15, > does the 015 has the comparable significance for the mtz density and mrc > map? > may be. Depends how your map (3D grid function in "mrc" file) and Fourier map coeffic

[ccp4bb] on the contour level in Coot

2015-05-03 Thread Smith Liu
If for both a mtz density and mrc map I set the contour level as 0.15, does the 015 has the comparable significance for the mtz density and mrc map? Smith