[ccp4bb] Post-doctoral position in Paris

2015-05-27 Thread CHARBONNIER Jean-Baptiste 137316
Postdoctoral Research Position Structural studies and inhibitors design of NHEJ pathway A 24 month postdoctoral position is available in the Laboratory of Structural Biology and Radiobiology. The group, led by Jean-Baptiste Charbonnier, is located at the CEA Saclay (South Paris) and is part of

Re: [ccp4bb] Validity of Modeling of Highly flexible region at low sigma levels

2015-05-27 Thread Pavel Afonine
Sagar, what you see may be model bias unless you calculated these maps without that region of molecule. Pavel On Wed, May 27, 2015 at 12:03 PM, Sagar De'Biomimic sagarbiophys...@gmail.com wrote: Dear all, We have solved a structure of Protein-DNA complex. In an ASU we have two protein

Re: [ccp4bb] reference needed for TRUNCATE NO equation.

2015-05-27 Thread Randy Read
Hi Bernhard, Thanks for that, but it reinforces my impression (also reinforced offline by George Sheldrick) that this is something that was floating around at some point, and no-one ever bothered to put it in a proper publication. The background is that we've just submitted a paper on a new

[ccp4bb] Group leader position in membrane protein structural biology at the SGC in Oxford

2015-05-27 Thread Liz Carpenter
Dear All, We are expanding our efforts on human integral membrane protein structural biology at the SGC in Oxford and are seeking a Group Leader to build a new group. We are looking for a young scientist to develop a world-class programme of research, complementing existing strengths at

Re: [ccp4bb] Validity of Modeling of Highly flexible region at low sigma levels

2015-05-27 Thread Gerard Bricogne
Dear Sagar and Pavel, Yes, it may be model bias, but you also have to bear in mind that the rmsd that is used as a unit in the choice of contouring level should not be thought of as the standard deviation of a Gaussian random variable and therefore implicitly associated to a significance

Re: [ccp4bb] 1st NJUST/CCP4 Crystallography School

2015-05-27 Thread 易军
Dear Yufan, There was a small error on the webpage earlier and it has been fixed. So the application window is still open. Please try again. Thanks. Eva -原始邮件- 发件人: Wu Yufan y...@bioc.uzh.ch 发送时间: 2015年5月27日 星期三 收件人: yi...@njust.edu.cn yi...@njust.edu.cn 抄送: 主题: 1st NJUST/CCP4

Re: [ccp4bb] Data reduction

2015-05-27 Thread Zbyszek Otwinowski
These are two different types of completness indicators Scalepack reports Bragg's law completness, 98.8% of your unique reflections were in diffracting condition. If you use automatic corrections only informative reflections are output, for anisotropic diffraction 64% is reasonable Hi All,

[ccp4bb] Data reduction

2015-05-27 Thread Bio Physics
Hi All, Scalepack output says 98.8% complete data but after converted to .mtz file it reduced to 64%. I have tried in CCP4 and phenix both. How is it possible? Ayan

Re: [ccp4bb] About protein aggregation~!

2015-05-27 Thread zeyaul islam
Hello Gaoyina S. pombe riboflavin synthase has similar situation . It is homotrimeric in solution state but the protein is monomeric in the crystal structure. Gerhardt S, Schott AK, Kairies N, Cushman M, Illarionov B, Eisenreich W, Bacher A, Huber R, Steinbacher S, Fischer M. Studies on the

Re: [ccp4bb] Validity of Modeling of Highly flexible region at low sigma levels

2015-05-27 Thread Gerard Bricogne
Dear Thierry, This is a very interesting approach and observation. Using a threshold of 0.6 rmsd, if converted into a ratio of B-factors, would mean accepting waters that have a 40% higher B-factor than would be done with a 1.0 rmsd threshold. Philippe Dumas commented off-list on my

Re: [ccp4bb] Validity of Modeling of Highly flexible region at low sigma levels

2015-05-27 Thread Fischmann, Thierry
Here is another observation regarding the subject of which rms value is more sensible to review a structure. The purpose of the calculation described below was to determine the optimum e- density value for rejecting waters. The principle of the test was very simple : waters were added using

[ccp4bb] Postdoctoral Fellows Computational Biology - UC San Diego

2015-05-27 Thread Rose, Peter
University of California, San Diego San Diego Supercomputer Center Postdoctoral Fellow Summary: We are looking for two highly motivated post-docs as part of our new project “Compressive Structural Bioinformatics” funded by the US National Institutes of Health (NIH) Big Data to Knowledge (BD2K)

[ccp4bb] AW: [ccp4bb] About protein aggregation~!

2015-05-27 Thread Herman . Schreuder
Dear Gaoyina, I have not met this situation before myself, but I have some remarks: - Are you sure that none of your crystal contacts is a dimer interface? - Did you do SEC or SAXS at conditions close to the crystallization conditions? Crystallization conditions themselves

Re: [ccp4bb] 1st NJUST/CCP4 Crystallography School Announcement

2015-05-27 Thread luzuok
-- 卢作焜 南开大学新生物站A202 在 2015-05-27 10:44:28,Chang Qing robie0...@gmail.com 写道: Dear Eva I checked the application information on the Web page and can only find the information below: Thank you for your interest in the 2015 CCP4/APS Summer School. The application system for the 2015

Re: [ccp4bb] 1st NJUST/CCP4 Crystallography School

2015-05-27 Thread luzuok
Dear Eva, I still got the same information at: http://www.ccp4.ac.uk/schools/china-2015/application.php Thank you for your interest in the 2015 CCP4/APS Summer School. The application system for the 2015 school is now closed. The 2016 workshop will be advertised towards the end of

Re: [ccp4bb] Validity of Modeling of Highly flexible region at low sigma levels

2015-05-27 Thread Pavel Afonine
Hi All, perhaps rank scaling of maps as described here Acta Cryst. (2014). D70, 2593-2606 instead of sigma scaling is a way to eliminate the ambiguity inherent to sigma scaling. Pavel On Wed, May 27, 2015 at 1:31 PM, Gerard Bricogne g...@globalphasing.com wrote: Dear Sagar and Pavel,

Re: [ccp4bb] About protein aggregation~!

2015-05-27 Thread Sebastiaan Werten
Dear dpsk, I asked a very similar question here about a month ago, so I'll post a summary of the replies. In our case, the protein was known to exist in a biologically relevant monomer-dimer equilibrium, with the amount of monomer becoming vanishingly small at high concentrations (e.g. in