- phenixbb - phenix-online.org

cyclic peptide refinement
by wei xia 12 Dec '13

12 Dec '13

Hi, I am trying to refine a structure with a cyclic peptide ligand.I create a 'TRANS' link between the C-ter and N-ter residues of the cyclic peptide during refinement.But there is obvious no bond formed between the two residues in the refined structure.I checked the geo file and found that there are only angle restraints but no bond restraints between the two residuesAnyone can help me out?Thanks in advance! Wei P.S. refinement.pdb_interpretation.apply_cif_link { data_link = TRANS residue_selection_1 = chain D and resname MVA and resid 5005 residue_selection_2 = chain D and resname ARG and resid 5001 }

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phenix.find_ncs_from_density density_search.dump_ncs_density doesn't output mtz
by Francis Reyes 11 Dec '13

11 Dec '13

I'd like to see the region of my maps that obey the NCS operators and I was hoping for separate mtz's for each region given I had set density_search.dump_ncs_density = True. However, I'm not getting any output mtzs. Any ideas? Thanks, F --------------------------------------------- Francis E. Reyes PhD 215 UCB University of Colorado at Boulder

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phenix.refine nproc
by de Waal, Parker 10 Dec '13

10 Dec '13

Hello Everyone, I recently compiled phenix 1.8.4-1496 on a CentOS 6.4 server and am having trouble using phenix.refine in parallel using the nproc flag which always runs as a single thread. Please find my input parameters here: https://gist.github.com/anonymous/13b9d4d39ed4d0c9622a I'm wondering if maybe OpenMP isn't configured properly on our server? Or maybe the correct version is not installed when I compliled phenix. If anyone has any input or experience with a problem such as this I would be extremely grateful. Cheers, Parker

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Spatial filtering
by Machius, Mischa Christian 06 Dec '13

06 Dec '13

Potentially silly question: is spatial filtering used for increasing contrast in electron density maps? Is it used for any other kind of data manipulation in macromolecular crystallography, e.g., diffraction data processing, density modification, etc. I'm a bit fuzzy on that subject, and so I said 'potentially silly', because it could be that such approaches are totally common but have different names (such as local averaging/scaling and so on). Many thanks in advance. Cheers, MM

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Submissions for next CCN newsletter
by Nigel Moriarty 06 Dec '13

06 Dec '13

Folks Calling for articles and short communications of interest to structural biologists. The deadline for submission in the January 2014 issue is 15 December 2013 but if you can send me an email we can make exceptions so you can use the holiday break to work on your drafts. The Computational Crystallography Newsletter (CCN) is an electronic newsletter for structural biologists, and is published online every 6 months. Feature articles, meeting announcements and reports can be submitted to me at any time for consideration. Submission of text by email or word-processing files using the CCN templates is requested. Past newsletters and a Microsoft Word template are available at www.phenix-online.org/newsletter. Cheers Nigel -- Nigel W. Moriarty Building 64R0246B, Physical Biosciences Division Lawrence Berkeley National Laboratory Berkeley, CA 94720-8235 Phone : 510-486-5709 Email : NWMoriarty(a)LBL.gov Fax : 510-486-5909 Web : CCI.LBL.gov

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DEN refinement
by Scott Thomas Walsh 05 Dec '13

05 Dec '13

Dear Phenix Users, Is it possible to use NCS restraints in DEN refinement like we can do in regular phenix.refine refinement? Thank you for your help. Cheers, Scott ************************************************ Scott T. R. Walsh, PhD Assistant Professor University of Maryland IBBR/CBMG 3127E CARB-2 9600 Gudelsky Drive Rockville, MD 20850 USA phone: (240) 314-6478 fax: (240) 314-6225 email: swalsh12(a)umd.edu<mailto:[email protected]>

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new Linux installers
by Nathaniel Echols 05 Dec '13

05 Dec '13

Hi Linux/Phenix users-- We are now building installers on several "new" platforms, including Ubuntu 10.04 and several versions of CentOS (which isn't much different from Fedora, except that it's supported by the virtual machine software we're using). Since we don't actually run these OSes outside of the VMs, we're going to crowd-source the testing a little more than usual. Our goal is to retire our ancient Fedora 3 systems - these are old and slow and take up too much space, but it's also the most compatible with other distributions. I'm hoping that the CentOS 5 builds will be a suitable replacement, or perhaps CentOS 4 (but we can only build the 32-bit installer on that OS). In addition to Ubuntu, I'm particularly interested in hearing whether any of these builds runs smoothly on SuSE and Debian. The virtual machine software supposedly supports these OSes too but I haven't yet managed to install SuSE on it after several attempts. The latest builds are here: https://www.phenix-online.org/download/phenix/nightly/?version=dev-1558&sho… We're missing the 64-bit CentOS 5 build right now, but I hope to get that working in the next few days. thanks, Nat

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Re: [phenixbb] reduce hangs
by Andreas Förster 05 Dec '13

05 Dec '13

Dear all, I'm not sure how much of my conversation with Jeff Headd and the comments from others that I received made it onto the mailing list. The problem with reduce being stuck in an infinite loop and refinement never completing has now a workaround, if no solution: Mark van Raaij pointed out that running refinement repeatedly while varying the number of cores would eventually avoid the infinite loop. I didn't observe that, but while running refinement with a handful of Xeons got stuck, running the same job with the same executable on the same OS with a bucketful of Opterons instead succeeded. As I said, there's no solution but a number of ways to get unstuck if you find yourself in the same situation like Mark and me. Best. Andreas -------- Original Message -------- Subject: Re: [phenixbb] reduce hangs Date: Wed, 4 Dec 2013 09:46:20 -0500 From: Jeff Headd <jjheadd(a)lbl.gov> To: Andreas Förster <docandreas(a)gmail.com> If the different machine is a slightly different architecture it's possible that it may run, even under the same OS version. My guess is that it's down to slight floating point differences in the coordinates throughout the course of refinement, but it's so hard to pinpoint. If you have access to other machines it is probably worth trying. <snip> Jeff

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Coot not allowing real space refinement when connected to phenix
by Jobichen Chacko 05 Dec '13

05 Dec '13

Dear All, I recently upgraded to latest version of coot (version0.7.2). When I try to do the Real space refine zone option, coot is giving the following complaint (Refinement setup failure. Failed to find restraints for PROLYSILE). But it works fine when I open coot separately from a terminal and read the pdb and mtz file. I downloaded this coot along with the ccp4 package and it also works fine when I open from ccp4 interface. Any suggestions will be much appreciated. Jobi

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hi.
by Hexi Zhang 04 Dec '13

04 Dec '13

http://satis.egitmeni.org/dxibo/axzjmylquusc.html Hexi Zhang

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reduce hangs
by Andreas Förster 03 Dec '13

03 Dec '13

Dear all, I'm refining a structure with 11 molecules in the asymmetric unit. Recently I took out NCS (data are to 2.2A and differences between molecules of interest). Refinement now stalls halfway through with two reduce jobs running at 100% CPU. The current job has been sitting like this for four days. The last entry in the log file are a few XYZ individual lines. Refinement includes XYZ, TLS, individual B, weight optimization. I launched 8 cycles. Phenix hangs after 4_bss. I've observed this twice in a row. Any suggestions to overcome this, short of going back to using NCS? This is with Phenix dev-1538 on RHEL 6.3. Thanks. Andreas -- Andreas Förster Crystallization and Xray Facility Manager Centre for Structural Biology Imperial College London

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AutoSol/Heavy atom sites/outside the model
by Egor Tchesnokov 03 Dec '13

03 Dec '13

Thank you for the feedback. WinCoot 0.7/Draw/Cell Symmetry brings up "Show Symmetry" window, which only allows to alter the display but not to coincide the heavy atom sites with the model. Am I not looking at the right menu in Coot ? Thank you for your time and help. Egor

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Autobuild combine
by Heather L Condurso 02 Dec '13

02 Dec '13

Hi all, I am still having issues with Autobuild giving errors during the combine step. I've downloaded the latest build and hope that will solve the problem, but in the mean time I'm having an issue trying to combine the models. I've been following the script: #!/bin/csh -f #COMBINE_MODELS SCRIPT if (-d PDS || -d AutoBuild_run_1_) then echo "Please run in a directory without PDS or AutoBuild_run_1_" exit 1 endif echo "Setting up combine models with a dummy run. NOTE: multiple_models_group_number must be correct" phenix.autobuild fobs.mtz multiple_models=true seq_file=seq.dat combine_only=true multiple_models_group_number=2 multiple_models_number=1 > dummy_autobuild.log echo "Copying files to AutoBuild_run_1_/MULTIPLE_MODELS" mkdir AutoBuild_run_1_/MULTIPLE_MODELS cp coords1.pdb AutoBuild_run_1_/MULTIPLE_MODELS/initial_model.pdb_1_1 cp coords2.pdb AutoBuild_run_1_/MULTIPLE_MODELS/initial_model.pdb_1_2 cp map_coeffs_1.mtz AutoBuild_run_1_/MULTIPLE_MODELS/initial_model.mtz_1_1 cp map_coeffs_2.mtz AutoBuild_run_1_/MULTIPLE_MODELS/initial_model.mtz_1_2 ls AutoBuild_run_1_/MULTIPLE_MODELS/ echo "Running autobuild to combine files in AutoBuild_run_1_/MULTIPLE_MODELS" phenix.autobuild combine_only=true seq_file=seq.dat carry_on=true run=1 > autobuild_combine.log # END OF COMBINE_MODELS SCRIPT # Here are the two log files. I used the expl_fobs_phases_freeR_flags.mtz as fobs.mtz and changed each overall_best.pdb and overall_best_refine_map_coeffs.mtz as the model and map to combine. Thanks, Heather

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AutoSol/Heavy atom sites/outside the model
by Egor Tchesnokov 02 Dec '13

02 Dec '13

Hello, Level: beginner 1. Data collected at wavelength of 0.9537 2. Ran Xtriage: anomalous data seem to extend to 2.2 A 3. Ran Phaser-MR to get partial model (1 copy in AU) 4. Ran AutoSol using partial model and anomalous data AutoSol finds heavy atom sites (FOM=0.69; Overall score=75.6+/-3.3). Coot displays model/density without heavy atoms Heavy atoms are displayed outside the model (using zoom out). Question: what did I do wrong? Thank you for your time and help. Egor

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Red patches of electron density
by Singh, Bishal 02 Dec '13

02 Dec '13

Hi, I am solving a crystal structure at 1.2 Å with completeness 97.3% in the highest resolution shell. There are few small patches of red electron densities on the main chain of a flexible loop at a contour level of ~3sigma of difference ED map. Refinement parameters were following: XYZ coordinates, individual B-factor, optimize X-ray/stereochemistry weight, optimize X-ray/ADP weight and individual Anisotropic ADP for amino acids excluding hydrogen. Target weights are as default in phenix.refine. I already have observed two alternative conformation for this region in another crystal structure. Therefore I am thinking that these red patches are because of lower occupancy of these residues. Please suggest me what shall I do. I shall be grateful for your words. With regards, Bishal Singh University of Heidelberg, Germany

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Iterative build omit map error
by Heather L Condurso 27 Nov '13

27 Nov '13

SO just as my omit map run should have finished, it gave an error instead. I'm running 1.8.4-1496 on a Mac with OSX 10.6.8 and 8GB of memory. Here is the end of the log file: Splitting work into 32 jobs and running with 1 processors using sh background=False in /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0 Final job will be run with sh with background=True Starting job 1...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_1.log Starting job 2...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_2.log Starting job 3...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_3.log Starting job 4...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_4.log Starting job 5...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_5.log Starting job 6...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_6.log Starting job 7...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_7.log Starting job 8...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_8.log Starting job 9...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_9.log Starting job 10...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_10.log Starting job 11...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_11.log Starting job 12...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_12.log Starting job 13...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_13.log Starting job 14...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_14.log Starting job 15...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_15.log Starting job 16...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_16.log Starting job 17...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_17.log Starting job 18...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_18.log Starting job 19...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_19.log Starting job 20...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_20.log Starting job 21...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_21.log Starting job 22...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_22.log Starting job 23...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_23.log Starting job 24...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_24.log Starting job 25...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_25.log Starting job 26...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_26.log Starting job 27...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_27.log Starting job 28...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_28.log Starting job 29...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_29.log Starting job 30...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_30.log Starting job 31...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_31.log Starting job 32...Log will be: /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_32.log ******************************************************************************** Sorry, a subprocess has failed... END OF LOG FILE /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_32.log : /TEMP0/Build_composite_refined_3.pdb R/Rfree=0.32/0.39 Maps from refinement will be filled (2FOFCWT PH2FOFCWT) Set refine map coeffs file pdb_file_refine_map_coeffs to refine_map_coeffs_3.mtz Rebuilding side chains from Build_composite_refined_3.pdb Refining model: edit_model.pdb approx_equal eps: 1e-06 approx_equal multiplier: 10000000000.0 0.0197876048373 approx_equal ERROR 0.0197856373852 approx_equal ERROR Refinement strategy: ['individual_sites', 'individual_adp', 'occupancies'] Moving refinement file AutoBuild_run_32_/TEMP0/Build_composite_refined_side_3_001_f_model.mtz to AutoBuild_run_32_/TEMP0/refine_fmodel.mtz Moving refinement file AutoBuild_run_32_/TEMP0/Build_composite_refined_side_3_001.mtz to AutoBuild_run_32_/TEMP0/refine_map_coeffs_3.mtz Model: AutoBuild_run_32_/TEMP0/Build_composite_refined_side_3.pdb R/Rfree=0.33/0.38 Maps from refinement will be filled (2FOFCWT PH2FOFCWT) Set refine map coeffs file pdb_file_refine_map_coeffs to refine_map_coeffs_3.mtz ******************************************************************************** Failed to carry out AutoBuild_parallel_omit: ******************************************************************************** Sorry, a subprocess has failed... END OF LOG FILE /Users/stevebruner/Desktop/APS_102313/MdnJB/AutoBuild_run_22_/TEMP0/RUN_FILE_32.log : /TEMP0/Build_composite_refined_3.pdb R/Rfree=0.32/0.39 Maps from refinement will be filled (2FOFCWT PH2FOFCWT) Set refine map coeffs file pdb_file_refine_map_coeffs to refine_map_coeffs_3.mtz Rebuilding side chains from Build_composite_refined_3.pdb Refining model: edit_model.pdb approx_equal eps: 1e-06 approx_equal multiplier: 10000000000.0 0.0197876048373 approx_equal ERROR 0.0197856373852 approx_equal ERROR Refinement strategy: ['individual_sites', 'individual_adp', 'occupancies'] Moving refinement file AutoBuild_run_32_/TEMP0/Build_composite_refined_side_3_001_f_model.mtz to AutoBuild_run_32_/TEMP0/refine_fmodel.mtz Moving refinement file AutoBuild_run_32_/TEMP0/Build_composite_refined_side_3_001.mtz to AutoBuild_run_32_/TEMP0/refine_map_coeffs_3.mtz Model: AutoBuild_run_32_/TEMP0/Build_composite_refined_side_3.pdb R/Rfree=0.33/0.38 Maps from refinement will be filled (2FOFCWT PH2FOFCWT) Set refine map coeffs file pdb_file_refine_map_coeffs to refine_map_coeffs_3.mtz ******************************************************************************** Can this be salvaged? It took 5 days to run. I found a section about this in the documentation, but I can't find the maps for each region overall_best_denmod_map_coeffs.mtz_OMIT_REGION_1 etc. I can only find working_best_denmod_map_coeffs.mtz_OMIT_REGION_1 etc. Will these maps work? Can you tell what the error means so that I can avoid this problem in the future? Thanks, Heather

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zero B-factors
by Edna Patricia Matta, Ms 26 Nov '13

26 Nov '13

Hello, Recently I did submit a structure to the PDB but they found that some atoms had zero value for the B-factors. I am new in this filed and I do not know what to do. There have been reports of problems with some versions of phenix about this. I used Phenix 1.8. I repeted the refinement doing restrain NCS-related B-factors but I do not find where to check for the the B-factor values in the the log file. Somebody can help me? Thanks a lot, Edna

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Re: [phenixbb] [ccp4bb] Ligandfit - problem with ligand_start
by Terwilliger, Thomas C 25 Nov '13

25 Nov '13

Hi Danilo, The most likely problem is that the ligand_start file has to have enough atoms in it to define a fixed group in the ligand. The way that ligandfit works is that it breaks a ligand up into rigid groups connected by rotatable bonds. The ligand_start file has to contain one complete rigid group. So probably if you supply a little more of the ligand then it might run. Just to test this, can you try this test of using a ligand_start file: phenix_regression.wizards.test_resolve resolve test_fit_start And then if that gives an "OK", try this: cd test_fit_start phenix.ligandfit ligand=side.pdb ligand_start=start.pdb resolve_map.mtz quick=true Does that run? If you the look at LigandFit_run_1_/TEMP0/resolve_ligand_fit.log Does that say >ligand_start start.pdb Starting configuration of ligand will be read from: start.pdb If all that works, then try adding more atoms to your ligand_start file. Let me know if that doesn't do it! All the best, Tom T Dear all, I am working on a membrane protein covalently bound to a molecular antanna: it is known that this molecule binds to lysine residue but I do not know how many and which lysine residues it binds. 20 diffraction datasets of this protein-ligand complex have been obtained and now, I would quickly localize the ligand using the Fo-Fc map of each data set and using the information on the covalent bound protein-ligand. Ligandfit tool (PHENIX) seems to be indicated to do this; to use the information on the covalent bound, I am using the ligand_start keyword with a pdb containing a ghost atom (however present in ligand model) perfectly superposed to the lysine atom that should bind the ligand. The command used is: phenix.ligandfit data=prot.mtz model=prot.pdb ligand=lig.pdb ligand_start=lig_start.pdb input_labels="FOFCWT PHFOFCWT" \ refine_ligand=True \ nproc=32 \ cif_def_file_list=lig.cif description: - prot.mtz (data) - prot.pdb (protein without ligand) - lig.pdb (ligand containing ghost atom) - lig_start.pdb (ghost atom superpose to NZ of a lysine) - lig.cif (restrain of lig.pdb) Strangely, no ligand is found at the end of the process even reducing ligand_cc_min to 0.01. I have run the same command by using an other protein where an other ligand has been correctly fitted but, also in this case, no ligand has been detected. Conversely, without the use of ligand_start, ligandfit properly localizes the ligand. I'm doing some mistake in the use of ligand_start? Do you know an other tool to perform a ligand fitting in these conditions? Thanks for your answers. Danilo

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Ligandfit - problem with ligand_start
by Danilo Belviso 25 Nov '13

25 Nov '13

Dear all, I am working on a membrane protein bound to a antenna molecule: I know that the molecule binds to lysine residue but I do not know how many and which lysine residues it binds. 20 diffraction datasets of protein-ligand complex have been obtained and now, I would quickly localize the ligand using the Fo-Fc map of each data set and using the information on the covalent bound protein-ligand. Ligandfit tool (PHENIX) seems to be indicated to do this; to use the information on the covalent bound, I have thought to use the ligand_start keyword with a pdb containing a ghost atom (however present in ligand model) perfectly superposed to the lysine atom that should bind the ligand. The command used is: phenix.ligandfit data=prot.mtz model=prot.pdb ligand=lig.pdb ligand_start=lig_start.pdb input_labels="FOFCWT PHFOFCWT" \ refine_ligand=True \ nproc=32 \ cif_def_file_list=lig.cif description: - prot.mtz (data) - prot.pdb (protein without ligand) - lig.pdb (ligand containing ghost atom) - lig_start.pdb (ghost atom superpose to NZ of a lysine) - lig.cif (restrain of lig.pdb) At the end of the processing, ligand is not found. So, I have tryed with ligand_cc_min=0.01, but also in this case ligandfit does not give result. I have thought that no ligand is present. However, to be sure that all was correct, I have run the same command by using an other protein where an other ligand has been correctly fitted. Also in this case, no result has been obtained. Conversely, without the use of ligand_start, ligandfit properly localizes the ligand. I'm doing some mistake in the use of ligand_start? Thanks for your answers. Danilo

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using reference model with polyA chain.
by Francis Reyes 20 Nov '13

20 Nov '13

I'm refining a structure ( at low res ), so I trimmed off all the side chain atoms from my model while my reference model still has these chains. I'm receiving errors like... ----------Correcting rotamer outliers to match reference model---------- ** evaluating rotamers for working model ** A 502 ILE is missing some sidechain atoms, **skipping** A 504 LYS is missing some sidechain atoms, **skipping** A 505 VAL is missing some sidechain atoms, **skipping** I don't care about the side chain atoms, but I'd still like the reference model restraints to provide secondary structure. Does "**skipping**" mean that the reference model is no longer being considered for the particular residue? Or will I still retain my secondary structure from the reference model? Thanks, F --------------------------------------------- Francis E. Reyes PhD 215 UCB University of Colorado at Boulder

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completeness problem in phenix.refine
by Yarrow Madrona 19 Nov '13

19 Nov '13

Hi, I recently merged two data sets, one having a phase and the other Amplitudes. For some reason my completeness is always 50%. I had anomalous data but the completeness is around 100% after processing and when I do an mtz dump. I'm confused why I get a completeness of 50%. Thank you for any help you can provide. -Yarrow -- Yarrow Madrona Graduate Student Molecular Biology and Biochemistry Dept. University of California, Irvine Natural Sciences I, Rm 2403 Irvine, CA 92697

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Error: "Error running main function (INPUT): LLG completion peak selection method not recognized"
by Egor Tchesnokov 18 Nov '13

18 Nov '13

Hello, I am trying to run Phaser/SAD or Phaser/MR_SAD (GUI using defaults), but I get the following error: "Error running main function (INPUT): LLG completion peak selection method not recognized". Thank you for your help Egor

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MSE out density after phenix.refine
by Pavel Afonine 16 Nov '13

16 Nov '13

Hello, anyone experiencing problems related to MSE residues being pushed out density after phenix.refine run should update to next Phenix nightly build, which should fix this problem. Please let me know otherwise off-list. Pavel

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MR_Rosetta prerefine question
by Heather L Condurso 12 Nov '13

12 Nov '13

Dear all, I am trying to use the rosetta prerefinement fuction of MR_rosetta to complete a homology model with missing stretches of amino acids. Everything runs fine and residues are being added to fill the gaps using the fragment files, but rosetta is also altering parts of the model which should already be well placed. Is there a way to tell Rosetta only to prerefine certain residues? I've been following the command line suggestion: phenix.mr_rosetta \ seq_file=seq.dat \ data=coords1.mtz \ search_models=coords1.pdb \ run_prerefine=True \ number_of_prerefine_models=1000 \ fragment_files = test3.gz \ fragment_files = test9.gz \ rescore_mr.relax=False \ rosetta_models=100 \ ncs_copies=2 \ space_group=p212121 \ use_all_plausible_sg=False \ nproc=200 \ group_run_command=qsub Thanks, Heather Condurso condurso(a)bc.edu

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Re: [phenixbb] Phenix.Rosetta_refine on Ubuntu 12.04 LTS
by qwertgfdsa78 11 Nov '13

11 Nov '13

Hi All, I tried Jan's tutorial and finally I was able to install and ran phenix.rosetta with test set 1yjp successfully. However, when I tried my data, I always got *"terminate called after throwing an instance of 'std::bad_alloc'"* Google suggests maybe memory is not enough. I used VirutalBox and assign 8gb memory to it. My protein has ~3000 residues. I guess this will use more memory but how much RAM I need? Or the error is due to some other problem? Thank for any inputs. Lee > ------------------------------ > > Message: 3 > Date: Tue, 05 Nov 2013 14:26:00 +0100 > From: Jan Gebauer <jan.gebauer(a)uni-koeln.de> > To: PHENIX user mailing list <phenixbb(a)phenix-online.org> > Subject: Re: [phenixbb] Phenix.Rosetta_refine on Ubuntu 12.04 LTS > Message-ID: <5278F1E8.9020602(a)uni-koeln.de> > Content-Type: text/plain; charset="utf-8" > > Hi David, hi all, > > I now managed to at least get a test refinement working. What I mostly > changed was the Ubuntu version. > I have no idea why, but I managed to get it to work on Ubuntu 10.04. > > In principle I installed 10.04 freshly in a virtualbox and from their it > worked rather straight-forward. > > Here is how I proceeded in detail for those of you who are interested: > > 1) Setting up a Virtualbox 4.3.2 r90405 on Ubuntu 12.04.3. > 2) Installing the 64bit version of Ubuntu 10.04 in a virtualbox (4 > processors / 90% speed cap / 4GB Ram /VT-x enabled) > 3) Install VBoxAdditions > 4) Update ubuntu (sudo apt-get update) > 5) Installing g++ and zlib library (sudo apt-get install g++ zlib1g-dev) > 6) Installing binary version of phenix-dev-1525 to > /usr/local/science/phenix-dev-1525 (sudo ./install > --prefix=/usr/local/science) > 7) Unpack rosetta_2013_wk42_bundle to > /usr/local/science/rosetta_2013_wk42_bundle > 8) set rossetta variables by inserting them at the start of > /usr/local/science/pheninx-dev-1525/phenix_env.sh (just in line 3ff): > export PHENIX_ROSETTA_PATH=/usr/local/science/rosetta_2013wk42_bundle > export ROSETTA3_DB=/usr/local/science/rosetta_2013wk42_bundle/main/database > export > PATH=$PATH:/usr/local/science/rosetta_2013wk42_bundle/main/source/bin > 9) assign ownership to active user (sudo chown gebauer:gebauer > /usr/local/science/ -R) > 10) Compile it (phenix.build_phenix_interface nproc=4) > It should run without problems > > Testing: > 1) Create a new directory (mkdir test && cd test) > 2) Download testset (suggested by Nat: phenix.fetch_pdb --mtz 1yjp) > 3) Run rosetta_refine (phenix.rosetta_refine 1yjp.pdb 1yjp.mtz nproc=4) > In my case rFree dropped from 18.21 to 14.90. It's not a low resolution > dataset, but it show that it general works and lowRes would potentially > take to long for a mere testing > > My real data are still being processed so I have no idea how well it > will works... only thing I found out already: > 4.5 GB RAM for 4 processes calculating ~500Aa via rosetta seems not to > be enough. I thereby reduced my "real run" to only one processor... > > Regards, > Jan > > >

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