October 2019 - phenixbb - phenix-online.org

RapiData 2020 applications open
by Smith, Clyde 16 Nov '21

16 Nov '21

Applications are now open for the 2020 edition of RapiData at SSRL. RapiData is a practical course in macromolecular X-ray diffraction data collection, data processing and structure solution. The aim of the RapiData course is to educate and train young scientists in data collection and processing methods at synchrotron beamlines, using state-of-the-art software and instrumentation. The course will be held in sunny California at the Stanford Synchrotron Radiation Lightsource (SSRL) located on the SLAC National Accelerator Laboratory campus in Menlo Park, CA, from March 30 - April 4 2020. Course organizers for 2020 are Silvia Russi, Clyde Smith and Jeney Wierman. The course will comprise hands-on experiments at the SSRL beamlines, software tutorials, and lectures on the following topics: Specimen preparation, Data collection strategies, X-ray light sources, X-ray detectors, Data reduction, Structure solution by MAD, SAD and Molecular Replacement, Complementary methods (spectroscopy and small angle scattering). Please visit http://smb.slac.stanford.edu/news/rapidata/rapidata-2020/ and use the links on the "registration" page to apply for the course. The application deadline is November 10 2019. Successful applicants will be notified shortly thereafter, and invited to register and book accommodation at the SLAC Guesthouse at that time. A limited amount of travel support funding may be available. Please direct questions to Silvia Russi (srussi(a)slac.stanford.edu), Jeney Wierman (jwierman(a)slac.stanford.edu) or Clyde Smith (csmith(a)slac.stanford.edu).

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Postdoc position available in LBNL
by Peter Zwart 31 Oct '19

31 Oct '19

Dear All, We have a postdoc position available at LBNL to work on the development of computational approaches for twinned crystallographic data. This is an exciting opportunity to address a relatively common phenomenon in crystallographic data analysis for which there are currently limited twinning-aware approaches. The aim is to develop tools that impact substructure solution, molecular replacement, density modification and structure refinement. Click the link below for more info or contact me directly. https://lbl.taleo.net/careersection/2/jobdetail.ftl?job=88480 Regards Peter Zwart -- ----------------------------------------------------------------- P.H. Zwart Research Scientist Berkeley Center for Structural Biology Lawrence Berkeley National Laboratories 1 Cyclotron Road, Berkeley, CA-94703, USA Cell: 510 289 9246 BCSB: http://bcsb.als.lbl.gov PHENIX: http://www.phenix-online.org SASTBX: http://sastbx.als.lbl.gov -----------------------------------------------------------------

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Understanding Biology through Structure 16-20 March 2020
by Tom Terwilliger 30 Oct '19

30 Oct '19

Hi Colleagues, particularly students and postdocs, I would like to encourage you to sign up for "Understanding Biology through Structure 2020" (https://cvent.me/4kq9P, March 16-20, 2020 in Santa Fe,NM). Student and postdoc fellowships covering registration and hotel are available (awarded competitively after registration on a rolling basis). The conference is a forum where students and postdocs can meet established researchers and discuss the latest methods and results. For a one-line review and info on the last one see https://bit.ly/2Gfkm4t and https://bit.ly/2Gg39rm. Confirmed speakers are Ilme Schlichting, Yvonne Jones, Hao Wu, Peijun Zhang, Christopher Russo, Claudio Ciferri, David Stuart, Blake Wiedenheft, Ci Ji Lim, Robert Stroud, Wayne Hendrickson, Bonnie Murphy, Anne Houdusse-Juille, Sonja Lonrenz, Chris Hill, Chun-wa Chung, Jian Payandeh, Amit Sharma, Marissa Matsumoto, Suzanne Scarlata, Osamu Nureki, Natalia Jura, Erica Ollmann Saphire, Eva Nogales, Andrej Sali, Anke Bill, Joanna Sulkowska, David Eisenberg, Marie Pancera, Karla Satchell, Jacques Philippe Colletier, Tom Terwilliger, Christopher Neale, and Tom Blundell. All the talks will be followed by 10-15 minutes of discussion with participation by students and postdocs especially encouraged. After the main conference there will be an optional Phenix workshop with lectures and hands-on sessions on using Phenix for crystallography and cryo-EM. Registration is first-come first served, with a limit of 120. All the best, Tom T -- Thomas C Terwilliger Laboratory Fellow, Los Alamos National Laboratory Senior Scientist, New Mexico Consortium 100 Entrada Dr, Los Alamos, NM 87544 Email: tterwilliger(a)newmexicoconsortium.org Tel: 505-431-0010

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GUI reorders file data type in EM validation task
by Ashley Pike 30 Oct '19

30 Oct '19

Hi, I am having problems convincing the GUI which EM map is which for halfmap validation. Version is 1.17-3644 Here is input: [cid:[email protected]] and what is written to Summary tab: [cid:[email protected]] Any tricks to getting this to work? Editing the .eff file written by the gui is an option but running phenix.validation_cryoem on the command line doesn't seem to produce much viewable output. Cheers, Ashley -- Dr. Ashley Pike Membrane Protein Crystallography | Structural Genomics Consortium | University of Oxford Phone: +44 (0)1865 617576 | FAX: +44 (0)1865 617575 | ashley.pike(a)sgc.ox.ac.uk<mailto:[email protected]> | www.thesgc.org<http://www.thesgc.org/> Address: Structural Genomics Consortium, Old Road Campus Research Building, Headington, Oxford OX3 7DQ, UK

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Potential Berkeley Server Outage (October 25)
by Billy Poon 29 Oct '19

29 Oct '19

Hi everyone, As a result of the increased frequency of wildfires in California the power company is taking steps to reduce risk under certain weather conditions. This entails shutting down electricity to regions that are experiencing dry windy conditions. We have been informed that the weather this weekend meets their criteria for a shutdown in our part of the Bay Area. Therefore several of the Berkeley servers will probably be shut down today and will return next week. This will affect: - The Phenix web site (http://phenix-online.org/) - The DIALS West web site (http://dials.lbl.gov/) - The CCI web site (http://cci.lbl.gov/) - The Structural Biology Technology Portal (http://technology.sbkb.org/) Bug reports and emails requesting help should be queued and we will receive them once the servers are back online. We apologize for any inconvenience. -- Billy K. Poon Research Scientist, Molecular Biophysics and Integrated Bioimaging Lawrence Berkeley National Laboratory 1 Cyclotron Road, M/S 33R0345 Berkeley, CA 94720 Tel: (510) 486-5709 Fax: (510) 486-5909 Web: https://phenix-online.org

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Berkeley Server Outage (Starting October 26th)
by Paul Adams 25 Oct '19

25 Oct '19

Dear Colleagues, yet again, as a result of the increased frequency of wildfires in California the power company is taking steps to reduce risk under certain weather conditions. This entails shutting down electricity to regions that are experiencing dry windy conditions. We have been informed that the weather this weekend meets their criteria for a shutdown in our part of the Bay Area. Therefore several of the Berkeley servers will be shut down this weekend and will return later the following week. This will affect: - The Phenix web site (http://phenix-online.org/) - The DIALS West web site (http://dials.lbl.gov/) - The CCI web site (http://cci.lbl.gov/) - The Structural Biology Technology Portal (http://technology.sbkb.org/) Bug reports and emails requesting help should be queued and we will receive them once the servers are back online. We apologize for any inconvenience. Cheers, Paul -- Paul Adams Division Director, Molecular Biophysics & Integrated Bioimaging, Berkeley Lab (http://biosciences.lbl.gov/divisions/mbib) Division Deputy for Biosciences, Advanced Light Source, Berkeley Lab (https://als.lbl.gov) Principal Investigator, ALS-ENABLE, Advanced Light Source, Berkeley Lab (http://als-enable.lbl.gov) Group Leader, Computational Crystallography Initiative, Berkeley Lab (http://cci.lbl.gov) Vice President for Technology, the Joint BioEnergy Institute (http://www.jbei.org) Laboratory Research Manager, ENIGMA Science Focus Area (http://enigma.lbl.gov) Adjunct Professor, Department of Bioengineering, U.C. Berkeley (http://bioeng.berkeley.edu) Adjunct Professor, Comparative Biochemistry, U.C. Berkeley (http://compbiochem.berkeley.edu) Building 33, Room 347 Building 978, Room 4126 Building 977, Room 180C Tel: 1-510-486-4225 http://cci.lbl.gov/paul Lawrence Berkeley Laboratory 1 Cyclotron Road BLDG 33R0345 Berkeley, CA 94720, USA. Executive Assistant: Louise Benvenue [ LBenvenue(a)lbl.gov ][ 1-510-495-2506 ] --

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real space refine and nonbonded_weight
by Cheung, Alan 25 Oct '19

25 Oct '19

Dear Developers A structure we refined back in 2017, using phenix.real_space_refine on a cryoEM map @ 3.7A (version 1.11.1–2575) produces a clashscore of ~8 but the exact same refinement run with the latest phenix (version 1.17.1) generates a clashscore of ~22. Our refinements with the latest version on other EM structures tend to generate pretty high clashscores too. I think i've tracked this down to the nonbonded_weight parameter, which defaults to 1000 in the older version, and to 100 in the latest version. At which version did the default change, and is there a reason for it? I couldn't find it in the changelog. Alan

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rosetta.run_tests crash
by wtempel 24 Oct '19

24 Oct '19

Hi, has anyone tried the combination of phenix-1.17 and rosetta-2019.40? Crashes in my hands, crash log attached. I may have modified the phenix installation by phenix.python -m pip install readline, in case it matters. Any suggestions appreciated. Many thanks in advance. Wolfram Tempel

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Yeast microtubule model
by Sebastiano Pasqualato 24 Oct '19

24 Oct '19

Dear all, I’m addressing to people working in the microtubule field. Has someone created, or knows where I could find, a pdb file of the yeast microtubule, or a portion of it? I’m interested in studying the contacts between subunits within the lattice. I know one could generate that using yeast tubulin dimers, but I don’t know exactly how. If someone has already done that and is willing to share it, that would be extremely helpful. Thanks a lot in advance, ciao, S PS: sorry for the cross posting to members of both bulletin boards. -- Sebastiano Pasqualato, PhD Biochemistry and Structural Biology Unit Department of Experimental Oncology European Institute of Oncology IFOM-IEO Campus via Adamello, 16 20139 - Milano Italy tel +39 02 9437 5167 fax +39 02 9437 5990

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Phenix-RSR model fit issue in CS-Map
by pramod kumar 23 Oct '19

23 Oct '19

Dear Experts, I have a map generated through cryosparc (ab initio-reconstr and homo-refine at 3.7A* FSC and sharpened in Scipion and separately in EMAN2). I have build the initial pdb through BALBES which has perfect validation parameters and nice fitting in the map (with the mtz output) but the co-ordinates are shifted from the true origin of CS-map. I used phenix-RSR to fit and refine, but validation results remained too far to accept the model as good solution and also a small region entered in wrong nearyby densities. So far following independent and downstream approaches I have taken:- In phenix; dock in map, map to model, rigid body refine followed by real space refine (with both .map and converted .mtz), using only chain A-map boxing and model generation through NCS. I have tried chimera fit for entire assembly and also only one chain in boxed map and full map but still the validation remained far from acceptable values and a small region in wrong neighboring density. Please help. -- Best regards, Promod

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