[ccp4bb] AsCA 2018/CRYSTAL 32 conference workshops

2018-07-06 Thread Christopher Squire
[https://az659834.vo.msecnd.net/eventsairseasiaprod/production-uoaevents-public/d231daa0bdac4db99817bc87d65a4b98] Dear Colleagues, Registration for the AsCA 2018/CRYSTAL 32 Conference workshops which will be held on Sunday, 2 December 2018 is now open. Delegates can register for a workshop at

Re: [ccp4bb] Unidentified electron density blob

2018-07-06 Thread Jan Stransky
Hi, seeing a "blue" map might at lower sigma levels might give some more insight. However, there are some caveats in doing so, like solvent flattening during the refinement. Phenix has options to calculate some fancy maps, which might give you some more "tips": Feature Enhanced Map, and

Re: [ccp4bb] Clear segid

2018-07-06 Thread Pavel Afonine
This should work in latest nightly builds: phenix.pdbtools model.pdb clear_seg_id=true If it doesn't please report a bug (on appropriate Phenix lists). Good luck! Pavel On Thu, Jul 5, 2018 at 4:33 AM, Eugene Osipov wrote: > Hello everyone, > is there any simple way in CCP4 to clear segid

[ccp4bb] PISA command line

2018-07-06 Thread wtempel
Hi, has anyone of you performed a PISA command line analysis using the version distributed with CCP4 on ubuntu-16.04? My attempt to "-list interfaces" after seemingly successful "-analysis" resulted in a core dump: PISA v.2.1.1 built 05-04-2017 with SSM v.1.4.0, SRS v.1.0.0, MMDB v.2,0.17

[ccp4bb] CCP4/SPring-8 workshop 1-6 October 2018

2018-07-06 Thread Ballard, Charles (STFC,RAL,CSE)
Dear All I am pleased to announce the second CCP4/Spring-8 (RIKEN) workshop running from 1-6 October 2018. This workshop will cover data collection, processing and structure solution. Details are available at http://www.ccp4.ac.uk/schools/Japan-2018 , with more to follow. Registration is on

Re: [ccp4bb] Unidentified electron density blob

2018-07-06 Thread Robbie Joosten
I'd like to add the more current CCP4 solution: AceDRG. It works really well and you only need to feed it the SMILES string of your compound. Also keep in mind that many compounds are actually already in the CCP4 dictionary. Finding out whether a compound is, is a two-step procedure: 1) Go to

Re: [ccp4bb] Please share your experience about "ugly" crystals showing good diffraction

2018-07-06 Thread Edward Snell
I couldn’t agree more with Patrick which is often the case. To echo some of his comments, in the High-Throughput Crystallization Screening Center we see many examples where the visual images of initial crystallization hits are very poor and experienced (or inexperienced) crystallographers would

Re: [ccp4bb] COOT: adding xylose to a plant glycosylation chain

2018-07-06 Thread Paul Emsley
Opps sorry - that's the wrong format. Try this instead. Paul To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB=1 ---

Re: [ccp4bb] COOT: adding xylose to a plant glycosylation chain

2018-07-06 Thread Paul Emsley
On 05/07/2018 15:00, Yoder, Marilyn wrote: I'm having problems adding XYP (beta-xylose) to my glycosylation chain in a plant protein. Hello again Marilyn, Having reflected on the problem, I hope that I can offer a bit more insight than "use the latest version" - so here's another attempt.

Re: [ccp4bb] Unidentified electron density blob

2018-07-06 Thread zaigham mahmood khan
Hey Uma Yes, you are right that PFPE is too big for this density. Also, more experienced scientist in this field has already commented on it. For the second part of your query, this is how one can generate the "crystallographic information file" - .cif for the ligand of choice (in case it is not

Re: [ccp4bb] Please share your experience about "ugly" crystals showing good diffraction

2018-07-06 Thread Peter Keller
Dear Anirban, On 05/07/18 22:06, Sanishvili, Ruslan wrote: Hi Anirban, It would be great if you could share the compilation of relevant responses to your request. I think many others in the community could use these examples for educational purposes. Quite so, and I am sure that a lot of

Re: [ccp4bb] Please share your experience about "ugly" crystals showing good diffraction

2018-07-06 Thread Patrick Shaw Stewart
Hi All I have a comment, based on my old supervisor's explanation, which seemed to make sense. Crystals usually grow layer by layer. Once a new layer is formed it quickly expands to cover the whole surface. That's why crystals normally have flat surfaces and sharp edges - the layers/steps

Re: [ccp4bb] Unidentified electron density blob

2018-07-06 Thread Wim Burmeister
Hello, a really molecule should show up also in the 2Fo-Fc type map. This appears not to be the case. So indeed it is likely that your density corresponds to some alternate conformation of the surrounding residues present with low occupancy. The glutamic acid