- phenixbb - phenix-online.org

CC beamtime application deadline this saturday
by Banumathi Sankaran 14 Aug '09

14 Aug '09

Dear Users, The deadline for October/November/December 2009 Collaborative Crystallography proposals will be August 15, 2009. Thumbnail Description: Through the Collaborative Crystallography Program (CC) at the Advanced Light Source (ALS), scientists can send protein crystals to Berkeley Center for Structural Biology (BCSB) staff researchers for data collection and analysis. The CC Program can provide a number of benefits to researchers: * Obtain high quality data and analysis through collaborating with expert beamline researchers; * Rapid turn around on projects; and * Reduced travel costs. To apply, please submit a proposal through the ALS General User proposal review process for beamtime allocation. Proposals are reviewed and ranked by the Proposal Study Panel, and beamtime is allocated accordingly. BCSB staff schedule the CC projects on Beamlines 5.0.1 and 5.0.2 to fit into the available resources. Only non-proprietary projects will be accepted. As a condition of participation, BCSB staff researchers who participate in data collection and/or analysis must be appropriately acknowledged - typically being included as authors on publications and in PDB depositions. Please consult the website for additional information at: http://bcsb.als.lbl.gov/wiki/index.php/Collaborative_Crystallography ============= How To Apply: To learn more, go to: http://www-als.lbl.gov/als/quickguide/independinvest.html To submit a proposal, go to: http://alsusweb.lbl.gov/. Scroll down to "Structural Biology beamlines (includes protein SAXS)" and click on "New Proposal." Enter your proposal information, with attention to the following details: * For question 3/First choice, select "5.0.1 (Monochromatic);" for question 3/Second choice, select "5.0.2 (MAD)." * Check box (yes) in response to question "Do you want collaborative crystallography (beamline 5.0.1 or 5.0.2 only ?) * In question 9, please describe a specific research project with a clear end point. In order to request CC time for October/November/December 2009 allocation period, proposals must be submitted by August 15, 2009. Please note that the ALS will be shut down in September, 2009. The deadline for CC proposals for the time period January/February 2010 will be November 15, 2009. Regards, Banumathi Sankaran

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Re: [phenixbb] phenix.refine special positions
by Ralf W. Grosse-Kunstleve 13 Aug '09

13 Aug '09

Hi Simon, To add to the previous answers, note that phenix.refine currently doesn't work well if you want to allow symmetry copies of your ligands to overlap. If you move to individual coordinate refinement you have to fix such ligands; i.e. it won't automatically repair bonds distorted by rigid-body refinement. Removing this limitation is on my to-do list. Ralf

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phenix.refine special positions
by Simon Kolstoe 13 Aug '09

13 Aug '09

Dear Pavel et al. Is there any way of defining a residue for rigid body refinement if a couple of the atoms are sitting on a symmetry axis? i.e. can I define the rigid body to be chain L but not the atoms that are giving the problems? I keep on getting the error: ================== Extract refinement strategy and selections ================= Some atoms selected for rigid body refinement are in special positions (listed below). Please remove these atoms from the rigid body selection and run refinement again. "ATOM 4 C4 A12 L 2 .*. C " Sorry: Atoms at special positions are within rigid groups. Thanks, Simon

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Shake
by esmael 13 Aug '09

13 Aug '09

Hi, Would be possible to only add "Shake" to the side-chain atoms during the refinement with Phenix? Thanks, Esmael

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phenix.xtriage says that entire res range contains anomalous signal but chart says differently?
by Francis E Reyes 13 Aug '09

13 Aug '09

Hi all I ran xtriage on my dataset to 4.5.here's the relevant section pertaining to anomalous signal Analyses of anomalous differences Table of measurability as a function of resolution The measurability is defined as the fraction of Bijvoet related intensity differences for which |delta_I|/sigma_delta_I > 3.0 min[I(+)/sigma_I(+), I(-)/sigma_I(-)] > 3.0 holds. The measurability provides an intuitive feeling of the quality of the data, as it is related to the number of reliable Bijvoet differences. When the data are processed properly and the standard deviations have been estimated accurately, values larger than 0.05 are encouraging. Note that this analyses relies on the correctness of the estimated standard deviations of the intensities. unused: - 90.6596 [ 0/1 ] bin 1: 90.6596 - 9.2614 [1371/1382] 0.0375 bin 2: 9.2614 - 7.3520 [1369/1376] 0.0033 bin 3: 7.3520 - 6.4230 [1380/1388] 0.0000 bin 4: 6.4230 - 5.8358 [1353/1359] 0.0016 bin 5: 5.8358 - 5.4176 [1367/1371] 0.0000 bin 6: 5.4176 - 5.0982 [1361/1369] 0.0000 bin 7: 5.0982 - 4.8429 [1378/1382] 0.0000 bin 8: 4.8429 - 4.6321 [1351/1359] 0.0000 bin 9: 4.6321 - 4.4538 [1383/1389] 0.0000 bin 10: 4.4538 - 4.3001 [1390/1393] 0.0000 unused: 4.3001 - [ 0/0 ] The full resolution range seems to contain a useful ammount of anomalous signal. Depending on your specific substructure, you could use all the data available for the location of the heavy atoms, or cut the resolution to speed up the search. If values larger than 0.05 are encouraging why is it telling me that the entire resolution contains a useful amount of anomalous signal? Did I process this incorrectly? Thanks FR --------------------------------------------- Francis Reyes M.Sc. 215 UCB University of Colorado at Boulder gpg --keyserver pgp.mit.edu --recv-keys 67BA8D5D 8AE2 F2F4 90F7 9640 28BC 686F 78FD 6669 67BA 8D5D

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General User Proposal Deadline for PX/SAXS at the ALS: August 15, 2009
by Peter Zwart 12 Aug '09

12 Aug '09

Dear All, August 15, 2009 is the deadline for the October - December 2009 Rapid Access Proposal cycle. (!!!!Please note that the ALS will be shut down in September, 2009.!!!!) Remote data collection is available on all beamlines at the Berkeley Center for Structural Biology (BCSB). The NX remote desktop technology provides the remote user with the full complement of sample visualization, sample manipulation, beamline control, data acquisition and data analysis tools exactly as they would see them if they were stationed at the beamline. This enhanced remote operation capability is coupled with 24hr onsite support by BCSB staff who are able to assist immediately with loading additional samples for remote users or troubleshoot any issues that might arise. Beamlines 8.2.1 and 8.2.2: Both beamlines are now fully remote capable, which means that users are able control sample mounting, data collection and analysis from their home labs. This has dramatically increased the efficiency of data collection and significantly reduced the cost of protein crystallography experiments, since users no longer have to travel to the synchrotron. To facilitate studies on small crystals, a microdiffractometer was installed in the beamline 8.2.1 endstation. The new equipment allows precise sample positioning to within 2 microns, excellent sample viewing of very small crystals, and an off-axis crystal positioning stage. As part of the beamline optics upgrades, a new toroidal focusing mirror was purchased and installed in beamline 8.2.1; new parabolic mirrors are currently being polished. When completed, the new optics will increase the brightness of beamline 8.2.1 by a factor of 4 to 5 and decrease the spot size to 30 microns, greatly facilitating structure solution on large macromolecular complexes. Beamlines 5.0.1, 5.0.2, 5.0.3: On Sector 5, improvements to the existing Berkeley Automounter sample handling system have dramatically improved both total capacity and reliability. Upgrades to the 5.0.1 and 5.0.3 monochromators have been completed. The operational energy of both beamlines has been increased, taking them above the Se K-edge and thus introducing a significant new Se SAD capability for experiments on Se derivatized proteins. The new monochromators also provide significantly better beam focus and performance under the increased power loads of ALS topoff operation. These improvements have been coupled with the introduction of enhanced positional feedback, diagnostic tools, and auto-alignment systems for the beamline components to improve the overall stability and quality of the beam delivered to users. Another mode of access to the BCSB beamlines is through the Collaborative Crystallography (CC) Program. Users apply for beamtime via the general user program, and collaborate with an expert crystallographer who will conduct the experiments and data reduction on behalf of the researchers. Depending on the users, structure solution, model building and refinement can be carried out as well. Please visit http://bcsb.lbl.gov/ for more details about the Center and its beamlines. To find out more, click on: http://www.als.lbl.gov/als/quickguide/independinvest.html Scroll down to "Structural Biology/Small Angle X-Ray Scattering (SAXS)." We invite you to submit a proposal at: http://alsusweb.lbl.gov/4DCGI/WEB_GetForm/PXProposalEntry.shtml/Initialize If you'd like to apply for January-February 2010 beamtime at the Advanced Light Source, please submit a General User proposal by November 15, 2009. If you have any questions or would like to request open beamtime, please e-mail BCSBBeamtime(a)lbl.gov. Please note that executed user agreements must be received by LBNL prior to beamtime. Proprietary fees, if applicable, must be received by LBNL at least five working days prior to scheduled beamtime. -- ----------------------------------------------------------------- P.H. Zwart Beamline 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 CCTBX: http://cctbx.sf.net -----------------------------------------------------------------

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xtriage
by Francis E Reyes 12 Aug '09

12 Aug '09

Hi all I love the fact that xtriage can measure anomalous signal, but can it also do a quick check for isomorphous differences (with and without anomalous signal) similar to scalepack? Is there a phenix utility that can do this? Thanks FR --------------------------------------------- Francis Reyes M.Sc. 215 UCB University of Colorado at Boulder gpg --keyserver pgp.mit.edu --recv-keys 67BA8D5D 8AE2 F2F4 90F7 9640 28BC 686F 78FD 6669 67BA 8D5D

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duplicated label
by Jianghai Zhu 12 Aug '09

12 Aug '09

Hi, I am using phenix.refine-125 to do a MLHL refinement. I got an error at the end of the refinement while it was trying to exporting results. "Sorry: Duplicate mtz_label_amplitudes:FOFCWT". The output map_coeffs.mtz file is corrupted and the next def file is blank. The refined pdb file seems to be fine. Anyone knows how to fix this problem? Thanks. -- Jianghai

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where are the optimized wxc_scale and wxu_scale when optimize_wxc_scale and optimize_wxu_scale = True?
by Francis E Reyes 07 Aug '09

07 Aug '09

Hi all I went through the time to optimize_wxc and optimize_wxu to help pull out some density for ligands (i.e. all sequence assigned residues are built). However, it would be nice if the resulting .def was updated with the optimized wxc and wxu. Where are those values? I didn't think for wxc it was scale=XX in the following lines.. r_work= 0.2167 r_free= 0.2525 bonds= 0.003 angles= 0.70 scale= 7.00 r_work= 0.2097 r_free= 0.2502 bonds= 0.004 angles= 0.96 scale= 8.00 ... etc Refining with the scale= value that phenix ultimately chose didn't work form me (resulted in awful geometry and high r/rfree). Thanks FR --------------------------------------------- Francis Reyes M.Sc. 215 UCB University of Colorado at Boulder gpg --keyserver pgp.mit.edu --recv-keys 67BA8D5D 8AE2 F2F4 90F7 9640 28BC 686F 78FD 6669 67BA 8D5D

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Re: [phenixbb] Let's talk about maps...
by Dr. Mark Mayer 07 Aug '09

07 Aug '09

Hi Pavel, It would be really nice if the Electron density maps section in the online docs for phenix.refine http://www.phenix-online.org/documentation/refinement.htm#anch70 was updated to decribe all the different map options people have been asking about. Its much harder to find this info by digging through the Q&A on the bb. Mark --

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Re: [phenixbb] Autobuild error (FIXED)
by youssef ben ammar 07 Aug '09

07 Aug '09

Thanks for all replies, Autobuild error linked to the long path was solved based on the suggestion of Ben Eisenbraun (thanks Ben). I reinstalled tcsh, but only that did not solve the problem. So, I deleted csh from the path and kept only the newly installed tcsh after that everything is running perfectly. Youssef

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Re: [phenixbb] phenix.refine 1.3 vs. 1.4 map quality ?
by William G. Scott 06 Aug '09

06 Aug '09

Hi Paul et al: The yellow map is filled and the blue map is no-fill from the phenix- generated mtz file: http://sage.ucsc.edu/~wgscott/mystuff/filled_vs_unfilled.pdf So I think this is clearly what is going on. Thanks. Bill

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Segmentation Fault
by Waight, Andrew 06 Aug '09

06 Aug '09

Hello All, I've recently solved a membrane protein structure largely with the help of phenix refine. I also have been using the autobuild programs recently for ligand fitting and whatnot. The program during this time has been running flawlessly on my machine (Ubuntu 9.04 E8400 3.0ghz etc etc) However this weekend Autobuild and AutoMR spontaneously started throwing this error. (boost_adaptbx_segmentation_fault_backtrace+0x1f) [0xb7de2e27] Segmentation fault (Python and libc call stacks above) This crash may be due to a problem in any imported Python module, including modules which are not part of the cctbx project. To disable the traps leading to this message, define these environment variables (e.g. assign the value 1): BOOST_ADAPTBX_FPE_DEFAULT BOOST_ADAPTBX_SIGNALS_DEFAULT This will NOT solve the problem, just mask it, but may allow you to proceed in case it is not critical. Memtest 86 says my RAM is good. I have reinstalled phenix and am still getting the same error. I can't seem to find any other information on this error (segmentation faults are tricky I know) and am just wondering if anyone else has seen or solved this type of problem, thanks for your help. Andrew Waight Wang Lab Skirball Institute of Biomolecular Medicine NYU school of medicine </PRE> <html> <body> ------------------------------------------------------------<br /> This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain information that is proprietary, confidential, and exempt from disclosure under applicable law. Any unauthorized review, use, disclosure, or distribution is prohibited. If you have received this email in error please notify the sender by return email and delete the original message. Please note, the recipient should check this email and any attachments for the presence of viruses. The organization accepts no liability for any damage caused by any virus transmitted by this email.<br /> ================================= </body> </html> <PRE>

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Re: [phenixbb] Autobuild error
by youssef ben ammar 06 Aug '09

06 Aug '09

Thanks for your quick reply, I tried again to fix the problem as suggested by Thomas but this did not solve the problem. Actually I have two machines running phenix, one with the old version 1.3, and the other with 1.4-3 version. With the old version I have also coot, ccp4, and arp-warp, and all things are running without any problem in this machine. But in the other computer, I don't have arp-warp in it (ccp4 and coot exist also), and everything was running OK until I updated phenix to 1.4-3. But now even if I downgrade it to 1.3, autobuild does not work. If I compare echo $PATH results from both machines, I can notice that the path in the one with "defected" autobuild is too long. I will review again my path and try to fix it, or see if there are other recently-installed programs that interfere with phenix. Thanks Youssef.

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Autobuild error -
by Gino Cingolani 05 Aug '09

05 Aug '09

Dear Youssef and Tom, I had the same problem. I also emailed the Phenix classified and got a similar response from Tom. In reality, Tom suggestion didn't solve my problem. The funny thing is that in my case PHENIX.Autobuild worked fine for months before suddenly giving the 'Word too long' error. Weird!!! Believe it or not, the only thing I had to do to fix the problem was to uninstall the ARP/wARP package (sorry about that Tassos!). I realized that PHENIX.Autobuilt stopped working properly right when I installed ARP/wARP. I guess there may be a conflict between the two programs (could Phenix read some ARP/wARP library in the wrong directory?), or something like that. I'm not sure. I'm not claiming this is a general solution, but it worked in my case. I hope it will help you! Cheers, Gino ****************************************************************************** Gino Cingolani, Ph.D. Associate Professor Thomas Jefferson University Dept. of Biochemistry & Molecular Biology 233 South 10th Street - Room 826 Philadelphia PA 19107 Office (215) 503 4573 Lab (215) 503 4595 Fax (215) 923 2117 E-mail: gino.cingolani(a)jefferson.edu ****************************************************************************** "Nati non foste per viver come bruti, ma per seguir virtute e conoscenza" ("You were not born to live like brutes, but to follow virtue and knowledge") Dante, The Divine Comedy (Inferno, XXVI, vv. 119-120)

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Re: [phenixbb] Autobuild error
by Thomas C. Terwilliger 05 Aug '09

05 Aug '09

Hi Youssef, I'm sorry for the trouble! If you update to a recent "nightly build" such as 1.4-129 then this should go away. If it still doesn't, then have a look at your path: echo $PATH which is probably quite long....and identify a few things (perhaps ccp4 and coot for example) that you don't need while running phenix...and then add the keyword: remove_path_word_list="coot ccp4" All the best, Tom T remove_path_word_list = None .help = "List of words identifying paths to remove from PATH " "These can be used to shorten your PATH. For example..." "cns ccp4 coot would remove all paths containing these " "words except those also containing phenix. Capitalization" "is ignored." ">> Dear all, >> >> Recently I have problem with Autobuild. The process fails with the >> following >> message: >> Failed to carry out AutoBuild_build_cycle: >> child process stderr output: >> command: 'csh /home/phenix/p21/AutoBuild_run_1_/TEMP0/RUN_FILE_1' >> Word too long. >> Even if I set the path only to things related to phenix, the process fails >> with the same error. >> >> Any idea? >> >> Youssef >> _______________________________________________ >> phenixbb mailing list >> phenixbb(a)phenix-online.org >> http://www.phenix-online.org/mailman/listinfo/phenixbb >>

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Autobuild error
by youssef ben ammar 04 Aug '09

04 Aug '09

Dear all, Recently I have problem with Autobuild. The process fails with the following message: Failed to carry out AutoBuild_build_cycle: child process stderr output: command: 'csh /home/phenix/p21/AutoBuild_run_1_/TEMP0/RUN_FILE_1' Word too long. Even if I set the path only to things related to phenix, the process fails with the same error. Any idea? Youssef

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Using phenix.pdbtools to strip multiple conformations out of a PDB file?
by Stephen Graham 04 Aug '09

04 Aug '09

Dear all, Apologies if this is a dumb question, but I couldn't find the answer in the docs or by asking the googlebrain. Is there a simple way in phenix.pdbtools to strip "alternate conformations" of side chains, etc, from an input PDB file? By removing "alternate conformations" I mean I would like to keep the conformation with the highest occupancy (not necessarily denoted 'A' in the altLoc column) unless all conformations have an equal occupancy, in which case I'd arbitrarily keep conformation 'A'. I think it should be possible by a clever atom_selection command, but the correct syntax has thus-far eluded me! Thanks, Stephen -- Dr Stephen Graham Division of Structural Biology Wellcome Trust Centre for Human Genetics Roosevelt Drive Oxford OX3 7BN United Kingdom Phone: +44 1865 287 549

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Is the twin refine conflict with order_solvent refine
by shi jiahai 04 Aug '09

04 Aug '09

Hi, Dear all, I am refine a twin dataset with phenix 1.4-3 and CCI (2008_02_08_1610) on a CenOS 5.2 workstation. When I run refine with twin law or order_solvent alone, the refinement is good. Everything goes smoothly. However if I enable refinement on both twin law and order_solvent, the error comes during the order_solvent refinement as below. Start model: number = 55 b_iso_min = 5.52 (limit = 1.00) b_iso_max = 60.32 (limit = 60.00) b_iso_mean = 24.19 anisotropy_min = 1.00 (limit = 0.10) occupancy_min = 1.00 (limit = 0.10) occupancy_max = 1.00 (limit = 1.20) dist_sol_mol_min = 2.13 (limit = 1.80) dist_sol_mol_max = 4.38 (limit = 6.00) Traceback (most recent call last): File "/Application/CCI/cci_apps_sources/phenix/phenix/command_line/refine.py", line 5, in <module> command_line.run(command_name="phenix.refine", args=sys.argv[1:]) File "/Application/CCI/cci_apps_sources/phenix/phenix/refinement/command_line.py", line 80, in run call_back_after_monitor_collect=call_back_after_monitor_collect) File "/Application/CCI/cci_apps_sources/phenix/phenix/refinement/driver.py", line 1162, in run call_back_after_monitor_collect = call_back_after_monitor_collect) File "/Application/CCI/cci_apps_sources/phenix/phenix/refinement/strategies.py", line 350, in refinement_machine log = log) File "/Application/CCI/cci_apps_sources/mmtbx/mmtbx/solvent/ordered_solvent.py", line 132, in __init__ map_cutoff = self.params.primary_map_cutoff).peaks_mapped() File "/Application/CCI/cci_apps_sources/mmtbx/mmtbx/solvent/ordered_solvent.py", line 324, in find_peaks log = self.log) File "/Application/CCI/cci_apps_sources/mmtbx/mmtbx/find_peaks.py", line 65, in __init__ symmetry_flags = maptbx.use_space_group_symmetry) File "/Application/CCI/cci_apps_sources/mmtbx/mmtbx/twinning/twin_f_model.py", line 2238, in electron_density_map w2 = w2).fft_map( File "/Application/CCI/cci_apps_sources/mmtbx/mmtbx/twinning/twin_f_model.py", line 2126, in map_coefficients "m_gradient" AssertionError Can anybody help me with this? Thanks a lot in advance! Best Regards, Shi Jiahai Department of Biological Sciences, National University of Singapore

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Assertion error while adding water
by Bishal Kumar Singh 03 Aug '09

03 Aug '09

Hi, Following error is showing while adding water. Every command-line is as default except "ordered_solvent = True". I will appreciate your suggestions. "0.7 1.17367178905 0.7 1.2044634853 0.7 1.18455476555 0.7 1.21102571346 0.7 1.20890773595 0.7 1.23028004675 0.7 1.2017635385 0.7 1.2151128962 0.7 1.20672093638 0.7 1.17881942233 0.7 1.21258440895 0.7 1.21100112067 0.7 1.22101928156 0.7 1.20955876073 0.7 1.17722437184 0.7 1.19891104532 0.7 1.18433797592 Traceback (most recent call last): File "/wrkhuge/cci_apps/cci_apps_sources/phenix/phenix/command_line/refine.py", line 16, in <module> command_line.run(command_name="phenix.refine", args=sys.argv[1:]) File "/wrkhuge/cci_apps/cci_apps_sources/phenix/phenix/refinement/command_line.py", line 89, in run call_back_after_monitor_collect=call_back_after_monitor_collect) File "/wrkhuge/cci_apps/cci_apps_sources/phenix/phenix/refinement/driver.py", line 1121, in run call_back_after_monitor_collect = call_back_after_monitor_collect) File "/wrkhuge/cci_apps/cci_apps_sources/phenix/phenix/refinement/strategies.py", line 394, in refinement_machine log = log) File "/wrkhuge/cci_apps/cci_apps_sources/mmtbx/solvent/ordered_solvent.py", line 159, in __init__ use_kick_map = self.params.use_kick_maps).peaks_mapped() File "/wrkhuge/cci_apps/cci_apps_sources/mmtbx/solvent/ordered_solvent.py", line 334, in find_peaks log = self.log) File "/wrkhuge/cci_apps/cci_apps_sources/mmtbx/find_peaks.py", line 93, in __init__ crystal_gridding_tags = fft_map.tags() File "/wrkhuge/cci_apps/cci_apps_sources/cctbx/maptbx/__init__.py", line 152, in tags return crystal_gridding_tags(self) File "/wrkhuge/cci_apps/cci_apps_sources/cctbx/maptbx/__init__.py", line 158, in __init__ assert gridding.symmetry_flags() is not None" regards, Bishal Singh

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Autosol error
by Francis E Reyes 31 Jul '09

31 Jul '09

All When issuing phenix.autosol native.data=scala_072809B_3_001.mtz deriv.data=scala_072909A_3_001.mtz deriv.atom_type=Ir deriv.sites=5 deriv.inano=noinano native.labels='IMEAN SIGIMEAN' deriv.labels='IMEAN SIGIMEAN' I get the error **************************************** AutoSol Input failed For SIR datasets please enter two datafiles or datasets.(native +deriv) Please treat MIR as a series of SIR datasets ...to specify a particular set of data you can specify one of the following (command-line format shown, for a script take out the '=' and use the keyword 'group_labels_list' instead): native.labels='IMEAN SIGIMEAN' deriv.labels='IMEAN SIGIMEAN' native.labels='I(+) SIGI(+) I(-) SIGI(-)' deriv.labels='I(+) SIGI(+) I(-) SIGI(-)' **************************************** Any ideas? thanks FR --------------------------------------------- Francis Reyes M.Sc. 215 UCB University of Colorado at Boulder gpg --keyserver pgp.mit.edu --recv-keys 67BA8D5D 8AE2 F2F4 90F7 9640 28BC 686F 78FD 6669 67BA 8D5D

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combining models from multi-start simulated annealing
by James Whittle 30 Jul '09

30 Jul '09

Is there a way to use AutoBuild to combine a set of models created by multi-start simulated annealing? I've used a random number generator to seed different SA runs at two temperatures, as suggested on this bulletin board before ... but can combine the best parts of these models automatically? --James

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Integrating Phenix with Torque
by Jeremy Mann 29 Jul '09

29 Jul '09

A new user of mine wants to run Phenix on two of our clusters. We use Torque/Maui as our batch scheduler and would like to integrated their usage of Phenix. They want to run something like: phenix.autobuild data=data.hkl seq_file=seq.dat model=model.pdb multiple_models=True multiple_models_number=20 n_cycle_rebuild_max=5 nbatch=20 nproc=20 The documentation mentions briefly the ability to use batch schedulers but doesn't give examples of submission scripts. -- Jeremy Mann jeremy(a)biochem.uthscsa.edu University of Texas Health Science Center Bioinformatics Core Facility http://www.bioinformatics.uthscsa.edu Phone: (210) 567-2672

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Phaser RMS - What happens when it is too high
by Peter Grey 29 Jul '09

29 Jul '09

Hi all, In Phaser RMS is a crucial parameter. I had several cases where underestimation of RMS resulted in negative LLG. The cure was simply increasing the RMS. But I wonder, are there negative effects to a too high RMS. What are the dangers of giving Phaser a too high RMS ? Are there any indications in the output for that. This is also important with EM maps as models since in that case estimation of RMS is difficult. Many thanks in advance for your advice and insight, Peter.

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phenix.refine issue
by Dennis Wolan 27 Jul '09

27 Jul '09

I am having an issue with running a simple phenix.refine that I have never encountered before. I get a list of issues and the program quits with: Traceback (most recent call last): File "/usr/local/phenix-1.4-3/phenix/phenix/command_line/ refine.py", line 9, in <module> command_line.run(command_name="phenix.refine", args=sys.argv[1:]) File "/usr/local/phenix-1.4-3/phenix/phenix/refinement/ command_line.py", line 68, in run log=log) File "/usr/local/phenix-1.4-3/phenix/phenix/refinement/ command_line.py", line 231, in __init__ reflection_file_server = self.reflection_file_server() File "/usr/local/phenix-1.4-3/phenix/phenix/refinement/ command_line.py", line 566, in reflection_file_server err=self.log) File "/usr/local/phenix-1.4-3/iotbx/reflection_file_utils.py", line 393, in __init__ force_symmetry=self.force_symmetry)) File "/usr/local/phenix-1.4-3/iotbx/reflection_file_reader.py", line 197, in as_miller_arrays base_array_info=base_array_info) File "/usr/local/phenix-1.4-3/iotbx/mtz/__init__.py", line 434, in as_miller_arrays and flex.min(column_group.sigmas()) > 0): RuntimeError: min() argument is an empty array I have no idea if the issue is with my pdb or mtz. I'm sure it's something very simple that I just am not identifying. Thanks in advance, Dennis

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