Re: [ccp4bb] P4132 vs. F23

2012-05-31 Thread Eleanor Dodson
You need to say what the cell dimensions are for these 2 options.. Eleanor On 29 May 2012 15:59, Andrey Lebedev andrey.lebe...@stfc.ac.uk wrote: Hi Mike. I would be more careful about incorrect space group. Yes, sometimes auto-indexing gives strange results. However, in your case two sets

Re: [ccp4bb] ligand geometry evaluation

2012-05-31 Thread Eleanor Dodson
Well - I am not familiar with the PHENIX dictionary but you are right; if you restrain metal bond distances the structure will reflect the restraints but if you don't restrain the distances then the respective gradients for a light atom and a heavy one can produce some very odd and unrealistic

Re: [ccp4bb] P4132 vs. F23

2012-05-31 Thread Zbyszek Otwinowski
Space groups F23 and P4132 are not subgroups of each other (without invoking pseudotranslational symmetry) so they cannot be related by twinning. The end of theoretical analysis. Zbyszek Otwinowski You need to say what the cell dimensions are for these 2 options.. Eleanor On 29 May 2012

[ccp4bb] Post-doc position in structural and biochemical analysis of novel antibacterial targets

2012-05-31 Thread Peter Roach
Post-Doctoral Research Assistant in Biochemistry Molecular Diagnostics and Thereputics *University of Southampton* *Location: *Highfield Campus *Salary: * £27,578 to £33,884 Full Time Fixed Term *Closing Date: * Tuesday 12 June 2012 *Interview Date: * To be confirmed

Re: [ccp4bb] to determine missing atoms and residues in a PDB file

2012-05-31 Thread Bosch, Juergen
Hi Eleanor, was there recently an update to beverage ? Could you send me a link to version 2.0 perhaps ? And more importantly it hopefully was compiled with EtOH and some vitamins :-) Jürgen On May 31, 2012, at 7:02 AM, Eleanor Dodson wrote: Or do something like beverage, and again you will

[ccp4bb] Quite interesting Lord of the RING

2012-05-31 Thread Gerard DVD Kleywegt
Hi all, E3 ubiquitin ligase is responsible for flagging proteins for degradation by transferring ubiquitin from a donor protein onto the molecule to be degraded. It is activated by phosphorylation of a tyrosine which promotes a huge conformational change, swinging its RING domain 180 degrees

[ccp4bb] Calculation of volume/size of cavity

2012-05-31 Thread Zhou, Tongqing (NIH/VRC) [E]
Dear All, I am looking for a way to calculate the size of a protein cavity which is occupied by a loop from a ligand protein. The goal is to see what's the maximum length of peptide allowed in this cavity. Thanks, Tongqing Tongqing Zhou, Ph.D. Staff Scientist Structural Biology Section

Re: [ccp4bb] Calculation of volume/size of cavity

2012-05-31 Thread Boaz Shaanan
Hi, You could try CASTp (http://sts.bioengr.uic.edu/castp/). If your protein is in the pdb it may well be in their database, if not, just upload it. Cheers, Boaz Boaz Shaanan, Ph.D. Dept. of Life Sciences Ben-Gurion University of the Negev Beer-Sheva 84105 Israel E-mail:

Re: [ccp4bb] Death of Rmerge

2012-05-31 Thread Jacob Keller
Meant to include the following link in the previous message: http://www.youtube.com/watch?v=9Jn8K8EA7-Q JPK On Thu, May 31, 2012 at 1:20 PM, Jacob Keller j-kell...@fsm.northwestern.edu wrote: Dear Crystallographers, in case you have not heard, it would appear that the Rmerge statistic has

Re: [ccp4bb] Death of Rmerge

2012-05-31 Thread Oganesyan, Vaheh
It wasn't doing well lately. So, it was expected. From: CCP4 bulletin board [CCP4BB@JISCMAIL.AC.UK] on behalf of Jacob Keller [j-kell...@fsm.northwestern.edu] Sent: Thursday, May 31, 2012 2:20 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Death of Rmerge

Re: [ccp4bb] Death of Rmerge

2012-05-31 Thread Soisson, Stephen M
Rpim (from the East) just told me You don't need to be helped any longer. You've always had the power to go back to Kansas. -Original Message- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Oganesyan, Vaheh Sent: Thursday, May 31, 2012 2:27 PM To:

Re: [ccp4bb] Calculation of volume/size of cavity

2012-05-31 Thread Gloria Borgstahl
We used VOIDOO recently and it worked well Kleywegt, G. J. Jones, T. A. (1994). Detection, delineation, measurement and display of cavities in macromolecular structures. Acta Crystallogr. D Biol. Crystallogr. 50, 178-185. On Thu, May 31, 2012 at 12:41 PM, Zhou, Tongqing (NIH/VRC) [E]

Re: [ccp4bb] Calculation of volume/size of cavity

2012-05-31 Thread Allan Pang
A list that you might want to check if it is useful for you. http://www.caver.cz/index.php?sid=133 Enjoy. Allan Quoting Zhou, Tongqing (NIH/VRC) [E] tz...@mail.nih.gov: Dear All, I am looking for a way to calculate the size of a protein cavity which is occupied by a loop from a ligand

Re: [ccp4bb] Death of Rmerge

2012-05-31 Thread Edward A. Berry
Yes! I want a copy of this program RESCUT. REMARK 200 R SYM FOR SHELL(I) : 1.21700 I noticed structure 3RKO reported Rmerge in the last shell greater than 1, suggesting the police who were defending R-merge were fighting a losing battle. And this provides a lot of ammunition to

[ccp4bb] Fwd: [ccp4bb] Death of Rmerge

2012-05-31 Thread Jacob Keller
Alas, how many lines like the following from a recent Science paper (PMID: 22605777), probably reviewer-incited, could have been avoided! Here, we present three high-resolution crystal structures of the Thermus thermophilus (Tth) 70S ribosome in complex withRMF, HPF, or YfiA that were refined by

Re: [ccp4bb] Fwd: [ccp4bb] Death of Rmerge

2012-05-31 Thread Dale Tronrud
On 05/31/12 12:07, Jacob Keller wrote: Alas, how many lines like the following from a recent Science paper (PMID: 22605777), probably reviewer-incited, could have been avoided! Here, we present three high-resolution crystal structures of the Thermus thermophilus (Tth) 70S ribosome in complex

Re: [ccp4bb] Fwd: [ccp4bb] Death of Rmerge

2012-05-31 Thread Jacob Keller
Good idea, but how to get it to catch on without publishing in Science? JPK On Thu, May 31, 2012 at 4:21 PM, Dale Tronrud det...@uoxray.uoregon.edu wrote: On 05/31/12 12:07, Jacob Keller wrote: Alas, how many lines like the following from a recent Science paper (PMID: 22605777), probably

Re: [ccp4bb] Fwd: [ccp4bb] Death of Rmerge

2012-05-31 Thread Ethan Merritt
On Thursday, May 31, 2012 02:21:45 pm Dale Tronrud wrote: The resolution limit of the data set has been such an important indicator of the quality of the resulting model (rightly or wrongly) that it often is included in the title of the paper itself. Despite the fact that we now want to

Re: [ccp4bb] Fwd: [ccp4bb] Death of Rmerge

2012-05-31 Thread aaleshin
There are things you can expect to learn from a 2Å structure that you are unlikely to learn from a 5Å structure, even if equal care has been given to both experiments, so it makes sense for the title to give the potential reader an idea which of the two cases is presented. But for this

Re: [ccp4bb] Fwd: [ccp4bb] Death of Rmerge

2012-05-31 Thread Edward A. Berry
In the meantime we could follow Phoebe Rice's example and put the resolution at I/sigma=2 in REMARK 2 resolution of structure but put the actual bleeding-edge resolution we used in the reduction and refinement statistics (At least if the PDB will allow us to have different values in these three

Re: [ccp4bb] Death of Rmerge

2012-05-31 Thread Zhijie Li
I am little curious about the anisotropically truncated data for 3RKO: Percent Possible(All)96.0 Mean I Over Sigma(Observed) 0.8 In the supplementary table of the nature paper it was made clear that this 3.16-3.0A, I/sigmaI=0.8 and Rmerge=1.216 shell was the outer shell of the

Re: [ccp4bb] Death of Rmerge

2012-05-31 Thread Edward A. Berry
Leo will probably answer better than I can, but I would say I/SigI counts only the present reflection, so eliminating noise by anisotropic truncation should improve it, raising the average I/SigI in the last shell. F/sigF is expected to be better than I/sigI because dx^2 = 2Xdx, dx^2/x^2 =

Re: [ccp4bb] Drawing reaction mechanism

2012-05-31 Thread William G. Scott
xdrawchem is free and will do this. On May 31, 2012, at 8:01 PM, Appu kumar wrote: Dear ccp4 user, Sorry for offset question, Anyone please tell me the name of programme which can be used to draw enzyme reaction mechanism ( like Sn1 and Sn2). Your kind help

Re: [ccp4bb] Drawing reaction mechanism

2012-05-31 Thread Takanori Nakane
Hi, Anyone please tell me the name of programme which can be used to draw enzyme reaction mechanism ( like Sn1 and Sn2). Your kind help will be much appreciated BKChem is also free software. http://bkchem.zirael.org/ Takanori Nakane