Re: [ccp4bb] 1.95A, different phases, maps look the same, R/Rfree 22/24, wrong space group?

2011-11-20 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dear Napo, to illustrate Felix Frolow's comment, take Solution-1 and the new data to refmac5 and run 'rigid body refinement'. I would not be surprised if you get a reasonable map with nearly the same R/Rfree as your MR solution, which means that this

Re: [ccp4bb] 1.95A, different phases, maps look the same, R/Rfree 22/24, wrong space group? - No alternative origin

2011-11-20 Thread Napoleão Valadares
Thank you all for the replies. Felix Frolow, Dan Leahy, Hans Brandstetter, Boaz Shaanan and Tim Gruene you really helped a lot. I think I understand it now, I always thought the one ring to rule them all translated in the crystallography realms to one origin to rule them all. That probably

Re: [ccp4bb] 1.95A, different phases, maps look the same, R/Rfree 22/24, wrong space group? - No alternative origin

2011-11-20 Thread Jim Pflugrath
A source of confusion is that we are using two different definitions of origin. In the a graphics program sense (coot, pymol), the origin is always at xyz coordinate (0, 0, 0). I think that's what Napo means by present the same cell and origin. However, imagine a crystal upon which we put a

Re: [ccp4bb] adxv

2011-11-20 Thread Rajesh kumar
Dear Tim, Thanks. Your suggestion of adding to PATH works and its not completely functional may be due to the Ximg/ssh or some thing to do with display.All three windows opened but couldn't open any image as it didn't display in the list of autoload window. Pattern shows *.0. $adxv

[ccp4bb] dark progression of radiation damage

2011-11-20 Thread James Holton
Mark's comment below reminded me of a quandary that is starting to develop in the rad dam field. The idea of the free radical cascade continuing to damage protein crystals even after the beam has been turned off seems to have originated on page 253 of Blundell and Johnson (1976), and I

Re: [ccp4bb] adxv

2011-11-20 Thread Mark Brooks
Dear Rajesh,                   Are you using the Openmotif library? If so, do you have an XKeysymDB file installed? In as shell, issue: $ locate XKeysymDB You may need to symlink it to /usr/X11R6/lib/X11/XKeysymDB if it is elsewhere [1]. I suspect you're not the only one to have seen this [2]. I

Re: [ccp4bb] dark progression of radiation damage

2011-11-20 Thread Sanishvili, Ruslan
Hi James, I don't think the comment you referenced meant to imply dark progression of radiation damage. If I remember from the recent thread, it was to say that if you can only collect few (3?) shots from one crystal before it's too dead and you use 1st of these shots to devise the strategy,

[ccp4bb] improve protein-DNA complex crystal

2011-11-20 Thread dengzq1987
Hi all, I got a protein-DNA complex crystal,by running SDS-PAGE and nativePAGE,i prove that the crystal contain both protein and DNA.BUT it does not diffract. does anyone have suggestion to improve the diffraction ability ? Best wishes, deng