Re: [ccp4bb] Turning off the bulk solvent modelling in Refmac5 to generate Polder maps?

2019-02-04 Thread Holton, James M
Yes, Dorothee is right. Don't turn off all the bulk solvent! That is not a polder map. In refmac you want to use the keyword: solvent exclude DUM And then fill the space you want to have no bulk solvent with water atoms with residue ID "DUM" and perhaps occupancy set to zero, since you don't

[ccp4bb] Multiple Postdoctoral Fellowships available at the “Multiscale Research Institute for Complex Systems” at Fudan University of Shanghai

2019-02-04 Thread Guo Lingyue
Dear All, The Multiscale Research Institute for Complex Systems (MRICS) at Fudan University is located at the Zhangjiang Campus of Fudan University and is supported by the Shanghai High-level Talents Program. MRICS is strongly committed to the development of

Re: [ccp4bb] Turning off the bulk solvent modelling in Refmac5 to generate Polder maps?

2019-02-04 Thread Eleanor Dodson
The keywords are: SCALE TYPE SIMPLE SOLVENT NO I always use for a completed sctructure SCALE TYPE SIMPLE SOLVENT YES and then a set of 4 numbers for scale and Bfactors are output . There is an option to give these as a FIXED SCALE. Forgotten the exact keywords but they will be in the manual..

Re: [ccp4bb] Turning off the bulk solvent modelling in Refmac5 to generate Polder maps?

2019-02-04 Thread Dorothee Liebschner
Hi, Please note that for polder maps, the bulk solvent is reset locally. Turning bulk solvent off entirely most likely deteriorates maps. Best wishes, Dorothee On Mon, Feb 4, 2019 at 3:50 AM Samuel Davis (PG Research) < s.w.da...@dundee.ac.uk> wrote: > Hi, > > I'm wondering if anyone knows if

Re: [ccp4bb] Turning off the bulk solvent modelling in Refmac5 to generate Polder maps?

2019-02-04 Thread Edwin Pozharski
It should be according to the manual http://www.ccp4.ac.uk/html/refmac5/keywords/xray-principal.html#solv If you using CCP4i, I believe this is done by unchecking the "Calculate the contribution from the solvent region" box in Scaling section. --- I don't know why the sacrifice didn't work. The

[ccp4bb] refmac same residue different names

2019-02-04 Thread Edwin Pozharski
Belated happy 2019, everyone. For whatever obscure reason, I need to refine a model that has two different residue types as alternate conformers with the same residue ID. Presented with a pdb file that has such feature, Refmac fails saying this ERROR: in chain A residue: 443 > different

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2019-02-04 Thread Rob Van Montfort
The Institute of Cancer Research, London, is one of the world’s most influential cancer research institutes, with an outstanding record of achievement dating back more than 100 years. We provided the first convincing evidence that DNA damage is the basic cause of cancer, laying the foundation

[ccp4bb] Turning off the bulk solvent modelling in Refmac5 to generate Polder maps?

2019-02-04 Thread Samuel Davis (PG Research)
Hi, I'm wondering if anyone knows if it is possible to turn off the bulk solvent modelling in Refmac5, for the purpose of generating Polder maps? I know that an option for Polder maps is directly implemented in Phenix, but we ideally want to use Refmac5, as we have used it for the rest of our

[ccp4bb] PhD studentship at Diamond Light Source and University of Essex: Time-resolved crystallography

2019-02-04 Thread Hough, Mike
Dear CCP4bbers, I’d be grateful if you could bring this studentship opportunity to the attention of any suitable candidates. Fully-funded 4 year PhD Studentship: Diamond Light Source and University of Essex Time-resolved synchrotron and XFEL crystallography of metalloenzymes using anaerobic

[ccp4bb] Hot Topics in Contemporary Crystallography 4 - Structural biology

2019-02-04 Thread Igor Sabljić
Dear colleagues, We are pleased to announce the registration and bursary applications are now open for the _Hot Topics in Contemporary Crystallography 4 - Structural biology_, to be held in the mythic city of Dubrovnik (Croatia) _from Oct. 1st to 6th, 2019_. Over four intensive days, four

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2019-02-04 Thread Alok Mitra
Dear Colleagues: Please ignore if this e.mail is a repeat reception – and apologies then in advance. - This is to bring to your attention an opening for a PhD student position as

[ccp4bb] [offtopic for ccp4bb] Real space vs reciprocal refinement

2019-02-04 Thread Maheshwaran.V
Dear all, In the current version of phenix.refine contains the separate option for refinement: xyz (reciprocal space) and xyz (real space ). What does it mean and how it differs from the previous versions which had xyz and real space instead. So I just wanted to know what does it actually do?