Re: [ccp4bb] How the IMEAN is calculated in scalepack2mtz

2017-03-13 Thread Karthikeyan Subramanian
Thank you all for the information and F estimator write-up. With regards Karthik On 13-03-2017 03:56 AM, Phil Evans wrote: Sorry Ian, I was attributing this to Kevin apologies Phil On 12 Mar 2017, at 21:56, Ian Tickle wrote: Eleanor, Phil is right about the bias of the weighted mean,

[ccp4bb] PostDoc opportunities at RCSB PDB

2017-03-13 Thread Andreas Prlic
We are looking for talented and highly motivated Postdoctoral Fellows to join the multidisciplinary development team at RCSB PDB. http://www.rcsb.org/pdb/news.do?year=2017&article=58b73b475ae81f58037bf5a8 The Challenge: Develop innovative analysis, integration, query, and visualization tools for

[ccp4bb] Postdoc positions at Uppsala University

2017-03-13 Thread Maria Selmer
Dear all, We have openings for two postdoctoral researchers for a project on protein synthesis and antibiotic resistance at Uppsala University, Sweden. The postdocs could also partly be involved in our ongoing studies of protein evolution. On-line advert with more information and instructions f

[ccp4bb] surface area

2017-03-13 Thread chemocev marker
Hi I am comparing some protein complex with PISA analysis. Can someone make a note what is difference between interface area and buried surface area. I think buried surface area also include the interface area + the area encloses with in the protein. Does it make sense to mentioned the interface ar

Re: [ccp4bb] ADD sulfinic-cysteine to protein aa-chain

2017-03-13 Thread Renato Mateus Domingos
Thanks all for the help! Definitely, using: Extensions -> Modelling -> Replace Residue ... -> CSD -> Mutate was the easiest way to solve the problem of adding the sulfinic cysteine! Thanks Renato *Renato Mateus Domingos* *PhD student at Departamento de Genética e Biologia Evolutiva* *Universidad

Re: [ccp4bb] How the IMEAN is calculated in scalepack2mtz

2017-03-13 Thread Ian Tickle
Hi Eleanor I reran my simulation including your method. Let's just look at the two extreme cases in my original table: sd(F+) = 10, sd(F-) = 1 (5th row) and sd(F+) = 1000, sd(F-) = 100 (last row: the case where my method performs worst but still better than the others!). I used the same 'true' v

[ccp4bb] Vacant positions as PhD student in Medical Structural Biology

2017-03-13 Thread Karin Lindkvist
Dear colleagues and structural biologist, I want to bring your attention to that we have two vacant positions as PhD students in Medical Structural Biology at Lund University, Sweden, available. The last application date is 31st of March. https://lu.mynetworkglobal.com/se/what:job/jobID:139767

Re: [ccp4bb] How the IMEAN is calculated in scalepack2mtz

2017-03-13 Thread Ian Tickle
Eleanor I notice that you are calculating a weighted mean using 1/sd(I) as the weight whereas in least squares one would of course normally use variance-weighting, i.e. 1/sd(I)^2. I assume this is intentional and is a way to reduce the bias effect of weighting, so that the resulting bias of the m