[ccp4bb] help me to install voidoo on ubuntu11.10

2011-12-16 Thread 王瑞
I am sorry for a little off-topic! Could anyone tells me how to install voidoo on 32-bits ubuntu11.10 ? For its distribution kit on http://xray.bmc.uu.se/markh/usf/, I have downloaded the distribution kit and Liniux_32_binaries executables, and followed their tutorial, but something goes wrong: if

Re: [ccp4bb] Jrh correction Re: [ccp4bb] Mg or water?

2011-12-16 Thread Yuri Pompeu
In my personal opinion, whatever that is worth, I would question why you are modelling a Mg2+ ion if you are having to go through some trouble to prove it is there. If you dont see octahedral coordination to waters and or Asp/Glu it probably is not a Mg. HTH

[ccp4bb] Jrh correction Re: [ccp4bb] Mg or water?

2011-12-16 Thread Jrh
Jrh correction:- in the last sentence the final statistical test must involve the comparison of each of the two different dictionary distance values in turn (essentially assumed to be exactly known for simplicity) versus the experimentally derived distance and its DPI derived sigma (L). Greeting

Re: [ccp4bb] very strange lattice: high anisotropy, 78% solvent content and maybe merohedral twinning

2011-12-16 Thread Herman . Schreuder
Dear Stefan, We recently had a case where a protein mutant formed tetramers with internal 21212 symmetry. It turned out that these internal symmetry axis would align perfectly with the crystallographic symmetry axes, but with some translations. All processing programs including XDS and pointless

Re: [ccp4bb] Mg or water?

2011-12-16 Thread John R Helliwell
Dear Bie Gao, You can obtain an estimate of the standard deviation on your putative Mg to ligand distance using the diffraction precision index (DPI) approach of Cruickshank and Blow (1999 and 2002 Acta Cryst D). ie:- D M Blow Acta Cryst. (2002). D58, 792-797 Synopsis: The formulae for the diffract

[ccp4bb] multi domain restriction for protein binding

2011-12-16 Thread Qiang Chen
Hi guys, I'm working on a multi-domain protein which uses three domains to form homodimer, and the full-length structure is available. We have solved the structure of one binding domain alone and found its homo-binding mode is totally different from that within the context of the full-length prote

[ccp4bb] studentship posting

2011-12-16 Thread MARTYN SYMMONS
Posted on behalf of Dr Callaghan - please contact her directly. 4 year Ph.D. Studentship on RNase structure and metabolic control. School of Biological Sciences. University of Portsmouth. Supervisor: Dr Anastasia Callaghan Co-supervisor: Dr Sarah Newbury (Sussex Medical School) Understanding