- phenixbb - phenix-online.org

Phaser problems
by Yarrow Madrona 18 Dec '11

18 Dec '11

Hello, Lately I have been having some trouble with phaser MR. For some reason even if I get a complete solution, it involves molecules from two different unit cells and it one case it picked up a symmetry related molecule as a crystallagraphic dimer. Recently I re-ran jobs from a sucessful run (over a year ago) in Phaser 2.1.4 where I get 4 molecules in the asymetric unit with plausable contacts that refined very well. Recently, however, I have re-run the job with the same search molecule and settings (all default). Although I get a solution, it involves molecules apparently from two asymetric units. The dimers formed are not the same contacts as what was seen in the earlier phaser run with Phaser 2.1.4. However if you turn on the symetry related molecues the tight crystallagraphic dimer seen previously shows up between one molecule and a symmetry mate. Has anyone had experiences like these recently with phaser? BTW my search model is 99% identical to my molecule (only one residue difference). Thanks. -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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Re: [phenixbb] GUI MR_Rosetta without explicit search model?
by Gohlke, Ulrich 16 Dec '11

16 Dec '11

Dear Nat, I changed the .py file as you suggested, and for the moment, it seems to work. Thanks! Cheers, Uli --------------------------------------------------------------------------- dr ulrich gohlke staff scientist - macromolecular structure and interaction max-delbrück-center for molecular medicine (mdc) +49 30 9406 - 2725 (w) +49 30 9406 - 2548 (fax) ulrich.gohlke(a)mdc-berlin.de <mailto:[email protected]> http://www.mdc-berlin.de/en/research/research_teams/macromolecular_structur… <http://www.mdc-berlin.de/en/research/research_teams/macromolecular_structur…>

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Re: [phenixbb] WAS High B-factors after Phenix restrained refinement
by Bryan Lepore 16 Dec '11

16 Dec '11

This classic essay has excellent tips that are worth reviewing from time to time : http://catb.org/~esr/faqs/smart-questions.html -Bryan

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GUI MR_Rosetta without explicit search model?
by Gohlke, Ulrich 16 Dec '11

16 Dec '11

Dear colleagues, I am trying to set up an MR_Rosetta run using the GUI of Phenix 1.7.3. Unlike the command line version, it doesn't seem to accept either Robetta fragment files or alignment files from the hhpred server as the sole input but it keeps on asking for a pdb-file as search model. Is this behaviour intended or am I missing something? Best regards, Uli Gohlke --------------------------------------------------------------------------- dr ulrich gohlke staff scientist - macromolecular structure and interaction max-delbrück-center for molecular medicine (mdc) +49 30 9406 - 2725 (w) +49 30 9406 - 2548 (fax) ulrich.gohlke(a)mdc-berlin.de <mailto:[email protected]> http://www.mdc-berlin.de/en/research/research_teams/macromolecular_structur… <http://www.mdc-berlin.de/en/research/research_teams/macromolecular_structur…>

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Compilation problem rosetta MR on Fedora 10
by Martin Moche 16 Dec '11

16 Dec '11

Dear Phenix Users, I am trying to compile rosetta mr on my fedora 10 computer: http://www.phenix-online.org/documentation/mr_rosetta.htm#anch35 Compared to the instructions % tar xzf rosetta3.2_Bundles.tgz did not work for me, instead I run % tar xvf rosetta3.2_Bundles.tgz and subsequently % tar xvf BioTools-3.3.tgz % tar xvf protocol_capture-3.3.tgz etc etc >From the rosetta_source directory as an ordinary user (not root) I run: % python scons.py -j2 bin mode=release The compilation runs for a while but finally I got the termination message below. What should I try next? Best regards, Martin #################### my computer info ################## daffy-mochma 183% scons --version SCons by Steven Knight et al.: script: v1.0.0.d20080826.r3315, 2008/08/26 11:30:08, by scons on scons-dev engine: v1.0.0.d20080826.r3315, 2008/08/26 11:30:08, by scons on scons-dev Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation daffy-mochma 104% uname -a Linux daffy 2.6.27.41-170.2.117.fc10.i686 #1 SMP Thu Dec 10 11:00:29 EST 2009 i686 i686 i386 GNU/Linux daffy-mochma 105% python --version Python 2.5.2 ############# termination message ############################# g++ -o build/src/release/linux/2.6/32/x86/gcc/libutility.so -Wl,-rpath=/net/fileserver/xtal/rosetta3.3_bundles/rosetta_source/build/external/release/linux/2.6/32/x86/gcc/ -shared build/src/release/linux/2.6/32/x86/gcc/utility/pointer/ReferenceCount.os build/src/release/linux/2.6/32/x86/gcc/utility/pointer/ReferenceCountMI_.os build/src/release/linux/2.6/32/x86/gcc/utility/options/OptionCollection.os build/src/release/linux/2.6/32/x86/gcc/utility/options/mpi_stderr.os build/src/release/linux/2.6/32/x86/gcc/utility/tag/Tag.os build/src/release/linux/2.6/32/x86/gcc/utility/sql_database/DatabaseSessionManager.os build/src/release/linux/2.6/32/x86/gcc/utility/boinc/boinc_util.os build/src/release/linux/2.6/32/x86/gcc/utility/io/icstream.os build/src/release/linux/2.6/32/x86/gcc/utility/io/izstream.os build/src/release/linux/2.6/32/x86/gcc/utility/io/ocstream.os build/src/release/linux/2.6/32/x86/gcc/utility/io/ozstream.os build/src/release/linux/2.6/32/x86/gcc/utility/options/keys/OptionKeys.os build/src/release/linux/2.6/32/x86/gcc/utility/excn/Exceptions.os build/src/release/linux/2.6/32/x86/gcc/utility/file/file_sys_util.os build/src/release/linux/2.6/32/x86/gcc/utility/file/FileName.os build/src/release/linux/2.6/32/x86/gcc/utility/file/gzip_util.os build/src/release/linux/2.6/32/x86/gcc/utility/file/PathName.os build/src/release/linux/2.6/32/x86/gcc/utility/basic_sys_util.os build/src/release/linux/2.6/32/x86/gcc/utility/string_util.os build/src/release/linux/2.6/32/x86/gcc/utility/heap.os build/src/release/linux/2.6/32/x86/gcc/utility/integer_mapping.os build/src/release/linux/2.6/32/x86/gcc/utility/mpi_util.os build/src/release/linux/2.6/32/x86/gcc/utility/exit.os build/src/release/linux/2.6/32/x86/gcc/utility/LexicographicalIterator.os -Llib -Lexternal/lib -Lbuild/src/release/linux/2.6/32/x86/gcc -Lsrc -Lbuild/external/release/linux/2.6/32/x86/gcc -Lexternal -L/usr/local/lib -L/usr/lib -lObjexxFCL -lz -lcppdb -lsqlite3 /usr/bin/ld: cannot find -lz collect2: ld returned 1 exit status scons: *** [build/src/release/linux/2.6/32/x86/gcc/libutility.so] Error 1 scons: building terminated because of errors. Martin Moche, Ph.D. Head of Protein Crystallography Karolinska Institutet MBB/PSF Scheeles väg 2 171 77 Stockholm Sweden phone: +46-8-524 868 43 mobile: +46-73-322 93 27 fax: +46-8-524 868 68 email: Martin.Moche(a)ki.se

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Reflection file woes phenix/ccp4/PDB
by Machius, Mischa Christian 16 Dec '11

16 Dec '11

Y'all, While depositing a structure, the PDB 'complained' about my structure-factor file, saying they don't contain R-free flags or are otherwise incomplete. The comment was prompted by their Refmac R-factor test failing. The structure-factor file I submitted came from phenix.refine (xxx_data.mtz). I am using version 1.7.3-928. Indeed, using this file in CCP4 fails with the message: "CCP4MTZfile: Mtz column type mismatch: I-obs(+) K-J CCP4MTZfile: Mtz column type mismatch: SIGI-obs(+) M-Q" The file contains anomalous data. I have no problems with files that do not contain anomalous data. Needless to say that Phenix uses the structure-factor file just fine when reading it back into, say, its validation utility. When I use iotbx.reflection_file_reader, I cannot detect any anomalies. I am at a loss as to how to resolve this issue. I would like to deposit the data as prepared by Phenix so that the PDB tools can use them. Anybody ran into this issue before? Any ideas for how to resolve it? Many thanks in advance! MM

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Dec 16, 2011 deadline- User proposal submission for Collaborative Crystallography at BCSB
by Banumathi Sankaran 15 Dec '11

15 Dec '11

Dear Users, > > The deadline for Feb/April 2012 Collaborative > Crystallography proposals will be *Dec 16, 2011. * > > ---------------------------------------------------------------------------------------- > 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/becomealsuser.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 (7) "Do you want collaborative > crystallography > (beamline 5.0.1 or 5.0.2 only) > * In question 4, please describe a specific research project with a > clear end point. > > In order to request CC time for Feb/April 2012 allocation period, > proposals must be submitted by *Dec 16, 2011.* > > The deadline for CC proposals for the time period May/June 2012 will be > Mar 15, 2012. > > Regards, > Banumathi Sankaran > >

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Re: [phenixbb] Compilation problem rosetta MR on Fedora 10
by Eugene Valkov 15 Dec '11

15 Dec '11

Hi Martin, I had encountered an issue with building Rosetta 3.2.1 on Ubuntu 11.04, specifically that SCons could not compile it because it used gcc 4.1 libraries, whereas there was gcc 4.4 installed. Could you check what version of gcc you have installed on your Fedora box? If it is the compiler issue then there are some workarounds documented on Rosetta forums: https://www.rosettacommons.org/node/2274 These worked for me, but you have to hack around in code a bit to make it happen. HTH, Eugene > On 15 December 2011 13:08, Martin Moche <Martin.Moche(a)ki.se> wrote: >> Dear Phenix Users, >> >> I am trying to compile rosetta mr on my fedora 10 computer: >> http://www.phenix-online.org/documentation/mr_rosetta.htm#anch35 >> >> Compared to the instructions >> % tar xzf rosetta3.2_Bundles.tgz >> >> did not work for me, instead I run >> % tar xvf rosetta3.2_Bundles.tgz >> >> and subsequently >> % tar xvf BioTools-3.3.tgz >> % tar xvf protocol_capture-3.3.tgz >> etc etc >> >> From the rosetta_source directory as an ordinary user (not root) I run: >> % python scons.py -j2 bin mode=release >> >> The compilation runs for a while but finally I got the termination message >> below. >> >> What should I try next? >> >> Best regards, >> Martin >> >> #################### my computer info ################## >> >> daffy-mochma 183% scons --version >> SCons by Steven Knight et al.: >> script: v1.0.0.d20080826.r3315, 2008/08/26 11:30:08, by scons on >> scons-dev >> engine: v1.0.0.d20080826.r3315, 2008/08/26 11:30:08, by scons on >> scons-dev >> Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons >> Foundation >> >> daffy-mochma 104% uname -a >> Linux daffy 2.6.27.41-170.2.117.fc10.i686 #1 SMP Thu Dec 10 11:00:29 EST >> 2009 i686 i686 i386 GNU/Linux >> >> daffy-mochma 105% python --version >> Python 2.5.2 >> >> >> >> ############# termination message ############################# >> >> g++ -o build/src/release/linux/2.6/32/x86/gcc/libutility.so >> -Wl,-rpath=/net/fileserver/xtal/rosetta3.3_bundles/rosetta_source/build/external/release/linux/2.6/32/x86/gcc/ >> -shared >> build/src/release/linux/2.6/32/x86/gcc/utility/pointer/ReferenceCount.os >> build/src/release/linux/2.6/32/x86/gcc/utility/pointer/ReferenceCountMI_.os >> build/src/release/linux/2.6/32/x86/gcc/utility/options/OptionCollection.os >> build/src/release/linux/2.6/32/x86/gcc/utility/options/mpi_stderr.os >> build/src/release/linux/2.6/32/x86/gcc/utility/tag/Tag.os >> build/src/release/linux/2.6/32/x86/gcc/utility/sql_database/DatabaseSessionManager.os >> build/src/release/linux/2.6/32/x86/gcc/utility/boinc/boinc_util.os >> build/src/release/linux/2.6/32/x86/gcc/utility/io/icstream.os >> build/src/release/linux/2.6/32/x86/gcc/utility/io/izstream.os >> build/src/release/linux/2.6/32/x86/gcc/utility/io/ocstream.os >> build/src/release/linux/2.6/32/x86/gcc/utility/io/ozstream.os >> build/src/release/linux/2.6/32/x86/gcc/utility/options/keys/OptionKeys.os >> build/src/release/linux/2.6/32/x86/gcc/utility/excn/Exceptions.os >> build/src/release/linux/2.6/32/x86/gcc/utility/file/file_sys_util.os >> build/src/release/linux/2.6/32/x86/gcc/utility/file/FileName.os >> build/src/release/linux/2.6/32/x86/gcc/utility/file/gzip_util.os >> build/src/release/linux/2.6/32/x86/gcc/utility/file/PathName.os >> build/src/release/linux/2.6/32/x86/gcc/utility/basic_sys_util.os >> build/src/release/linux/2.6/32/x86/gcc/utility/string_util.os >> build/src/release/linux/2.6/32/x86/gcc/utility/heap.os >> build/src/release/linux/2.6/32/x86/gcc/utility/integer_mapping.os >> build/src/release/linux/2.6/32/x86/gcc/utility/mpi_util.os >> build/src/release/linux/2.6/32/x86/gcc/utility/exit.os >> build/src/release/linux/2.6/32/x86/gcc/utility/LexicographicalIterator.os >> -Llib -Lexternal/lib -Lbuild/src/release/linux/2.6/32/x86/gcc -Lsrc >> -Lbuild/external/release/linux/2.6/32/x86/gcc -Lexternal -L/usr/local/lib >> -L/usr/lib -lObjexxFCL -lz -lcppdb -lsqlite3 >> /usr/bin/ld: cannot find -lz >> collect2: ld returned 1 exit status >> scons: *** [build/src/release/linux/2.6/32/x86/gcc/libutility.so] Error 1 >> scons: building terminated because of errors. >> >> >> Martin Moche, Ph.D. >> Head of Protein Crystallography >> Karolinska Institutet >> MBB/PSF >> Scheeles väg 2 >> 171 77 Stockholm >> Sweden >> phone: +46-8-524 868 43 >> mobile: +46-73-322 93 27 >> fax: +46-8-524 868 68 >> email: Martin.Moche(a)ki.se >> >> _______________________________________________ >> phenixbb mailing list >> phenixbb(a)phenix-online.org >> http://phenix-online.org/mailman/listinfo/phenixbb >> -- Eugene Valkov, D.Phil. MRC Career Development Fellow Division of Structural Studies MRC Laboratory of Molecular Biology Hills Road Cambridge CB2 0QH email: evalkov(a)mrc-lmb.cam.ac.uk tel: +44 (0)1223 402261

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loosening constraints on water addition
by Crystal VanderZanden 15 Dec '11

15 Dec '11

I'm trying to adjust the parameters on the water picking to allow for more waters to be found. I tried creating a solvent.params file with the code below, then I increased and decreased the primary map cutoff. When I ran the water picking command with the solvent.params file, it actually decreased the number of waters found, both at the high and low primary map cutoff. Does anyone know what I can do to relax the water finding criteria so more waters will be found? Thanks, Crystal refinement { ordered_solvent { low_resolution = 2.8 b_iso_min = 1.0 b_iso_max = 50.0 b_iso = 25.0 primary_map_type = mFobs-DFmodel primary_map_cutoff = 3.0 secondary_map_and_map_cc_filter { cc_map_2_type = 2mFobs-DFmodel } } peak_search { map_next_to_model { min_model_peak_dist = 1.8 max_model_peak_dist = 6.0 min_peak_peak_dist = 1.8 } } }

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how to get the sf.ent file
by Dialing Pretty 15 Dec '11

15 Dec '11

Dear All, Will you please tell me how can I get the sf.ent file from a PDB enty? Cheers, Dialing

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wilson scale
by Dialing Pretty 15 Dec '11

15 Dec '11

Dear All, For my structure, the wilson scale is 0.5, is it fine or not? Best regards. Dialing

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phenix.superpose_pdbs and nucleic acids.. does it work?
by Francis E Reyes 14 Dec '11

14 Dec '11

Hi phenixer's. I need to do a superposition of two pdbs. I guess phenix.superpose_pdbs is my jiffy but it doesn't seem to work for nucleic acids (tried selection = 'name P' or selection = 'all'). LSQKAB seems to have the same limitation. They are the exact same PDBs (1 to 1 atom/residue mapping) but just shifted and rotated relative to the other. I need a superposition or the transformation matrix for all atoms. Traceback (most recent call last): File "/usr/local/phenix-1.7.1-743/phenix/phenix/command_line/superpose_pdbs.py", line 450, in <module> run(args=sys.argv[1:]) File "/usr/local/phenix-1.7.1-743/phenix/phenix/command_line/superpose_pdbs.py", line 434, in run m = manager(params.extract(), log) File "/usr/local/phenix-1.7.1-743/phenix/phenix/command_line/superpose_pdbs.py", line 171, in __init__ selection_moving = self.selection_moving) File "/usr/local/phenix-1.7.1-743/phenix/phenix/command_line/superpose_pdbs.py", line 306, in _alignment "bugs(a)phenix-online.org for help.") RuntimeError: Failed to identify corresponding atoms from sequence alignment. This is probably a bug - contact bugs(a)phenix-online.org for help. I may just strip it down to phosphate's and rename the residues to ALA but a quick phenix jiffy would be great. Thanks! F --------------------------------------------- Francis E. Reyes M.Sc. 215 UCB University of Colorado at Boulder

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on residue bond deviation
by Dialing Pretty 14 Dec '11

14 Dec '11

Dear All, After a key step refinement byPhenix refine, I find there are 2 residues (total about 450 residues) with bad angles as analyzed by MolProity (deviation ratio 0.46%, goal is 0.1% ), both of the 2 residues are Pro, and both of the deviation angles are C-N-CA. Will you please give the comment on what do the 2 deviations mentioned above mean for my whole protein structure, or should I continue to refine my protein structure? I am looking forward to getting your reply. Dialing

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on the input file for the Phase and build
by Dialing Pretty 14 Dec '11

14 Dec '11

Dear All, For the Phenix Phase and build, the input mtz file is the scala mtz file, and the ouput mtz file will be the mtz file with phase, is this correct? I am looking forard to getting a reply from you. Cheers, Dialing

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strange MR problem
by intekhab alam 13 Dec '11

13 Dec '11

Hi All I have a 3.0A dataset of a protein-protein complex. I used one of the protein structure solved previously as a template and used phaser in CCP4 as well as in phenix. I used the sca file in phenix which gave a solution with 6 monomers in ASU which are packed as a hexamer. In ccp4 phaser i used the converted .mtz file which gave 6 molecules in ASU but with a different packing. In both the cases map fits well in the model and there is some extra density that may correspond to second protein partner of the complex molecule. when i tried to use the MR solution generated in phenix with the mtz file from ccp4 the model shows a lot of clashes. what kind of approach should i take so as to resolve this ambiguity. Regards -- INTEKHAB ALAM LABORATORY OF STRUCTURAL BIOINFORMATICS KOREA UNIVERSITY, SEOUL

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Phenix version 1.7.3 released
by Paul Adams 13 Dec '11

13 Dec '11

The Phenix developers are pleased to announce that version 1.7.3 of Phenix is now available. Binary installers for Linux, and Mac OSX platforms are available at the download site: http://phenix-online.org/download/ Some of the new features in this version are: Graphical interface: ==================== - New GUIs: MR-Rosetta - viewer for diffraction images (also available as phenix.image_viewer) - editable heavy-atom sites in HySS and AutoSol General: ======== - New commands: phenix.ncs_average, phenix.model_vs_sequence, phenix.image_viewer, phenix.find_alt_orig_sym_mate, phaser.MRage - support for CNS v1.3 reflection files Refinement: =========== - Reduced memory requirement for map related calculations - Improved handling of parameter files in the GUI - RNA geometry target now includes pucker & base type-specific Chi 1 parameters - TLS group definitions from PDB file header will be automatically used if no groups are provided by the user - Bug fix in clashscore calculation for large structures with duplicate chain IDs plus SEGIDs - Torsion NCS restraints uses SEGIDs if present in input PDB file Molecular Replacement: ====================== - phaser (version 2.4): - support for pseudo-translational non-crystallographic symmetry (tNCS) in molecular replacement - detects presence of tNCS from inspection of native Patterson - characterizes tNCS parameters (translation, small rotational difference between copies) - accounts for effect of tNCS in molecular replacement calculations - note: support currently limited to one tNCS operator relating two molecules (or sets of molecules) - FAST search method turned on by default, replacing FULL search method - MR possible with a model containing a single atom - B-factor refinement turned on by default in molecular replacement - Bug fix for occasional and irreproducible segmentation faults for 32 bit binary running on 64 bit Linux - Packing function accepts cases where an ensemble with internal point group symmetry is on a special position, and pdb file output deletes atoms overlapped due to the symmetry of special position - phaser.MRage (version 0.1.0) - automated MR: - New command-line switches for common actions, e.g. setting the verbosity, getting PHIL parameters, etc - Define component by sequence, but calculate molecular weight from available models if sequence is omitted - Calculate number of copies to find from Matthews coefficient - Ability to perform homology search (currently only BLAST is supported, either local installation or NCBI service) - alignments automatically generated for "template" if target sequence is known - various options for queueing systems, e.g. qslot - option to automatically write out solutions - fully parallel space group exploration - phenix.find_alt_orig_sym_mate (new command): - For different molecular replacement solutions from the same dataset, finds the copy of moving_pdb closest to reference_pdb with respect to all symmetry operations and alternative origin shifts permitted by the spacegroup in moving_pdb Experimental Phasing and Model Building: ======================================== - AutoSol: - Fixed problems with clean_up=True deleting overall_best.pdb - Allow data file names of any length - Use NCS in scoring by default if ncs copies > 2 - Correct anisotropy and sharpen by default - AutoBuild: - Automatic anisotropy correction and sharpening for all maps - phenix.multi_crystal_average: - Automatic anisotropy correction and sharpening - Automatic filling of reflections to highest resolution of any dataset - Masking heavy-atom sites from averaging - Inputs grouped by crystal Miscellaneous: ============== - phenix.ready_set/phenix.reduce: - Improved handling of alternate conformations - phenix.cif_as_mtz - Support for files containing multiple datasets - Extraction of Hendrickson-Lattman coefficients and anomalous arrays - New map_to_asu and remove_systematic_absences options - phenix.maps: - Added atom selection parameter for simple omit maps (omit.selection) - phenix.ligand_identification: - Implemented methods to generate custom ligand library based on parent protein's SCOP or CATH terms, Pfam accession numbers, GO accession numbers, or InterPro ID - Improved ligand geometry after real-space refinement For a full list of changes see: http://www.phenix-online.org/documentation/CHANGES Please note that this publication should be used to cite use of Phenix: PHENIX: a comprehensive Python-based system for macromolecular structure solution. P. D. Adams, P. V. Afonine, G. Bunkóczi, V. B. Chen, I. W. Davis, N. Echols, J. J. Headd, L.-W. Hung, G. J. Kapral, R. W. Grosse-Kunstleve, A. J. McCoy, N. W. Moriarty, R. Oeffner, R. J. Read, D. C. Richardson, J. S. Richardson, T. C. Terwilliger and P. H. Zwart. Acta Cryst. D66, 213-221 (2010). Full documentation is available here: http://www.phenix-online.org/documentation/ There is a Phenix bulletin board: http://www.phenix-online.org/mailman/listinfo/phenixbb/ Please consult the installer README file or online documentation for installation instructions. Direct questions and problem reports to the bulletin board or: help(a)phenix-online.org and bugs(a)phenix-online.org Commercial users interested in obtaining access to Phenix should visit the Phenix website for information about the Phenix Industrial Consortium. The development of Phenix is principally funded by the National Institute of General Medical Sciences (NIH) under grant P01-GM063210. We also acknowledge the generous support of the members of the Phenix Industrial Consortium. -- Paul Adams Deputy Division Director, Physical Biosciences Division, Lawrence Berkeley Lab Division Deputy for Biosciences, Advanced Light Source, Lawrence Berkeley Lab Adjunct Professor, Department of Bioengineering, U.C. Berkeley Vice President for Technology, the Joint BioEnergy Institute Laboratory Research Manager, ENIGMA Science Focus Area Building 64, Room 248 Tel: 1-510-486-4225, Fax: 1-510-486-5909 http://cci.lbl.gov/paul Lawrence Berkeley Laboratory 1 Cyclotron Road BLDG 64R0121 Berkeley, CA 94720, USA. Executive Assistant: Louise Benvenue [ LBenvenue(a)lbl.gov ][ 1-510-495-2506 ] --

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ncs_average output map
by Ursula Schulze-Gahmen 12 Dec '11

12 Dec '11

I am puzzled about my ncs-averaged output map. I determined the ncs relation using phenix.find_ncs with pdb and mtz input. The program finds 2 NCS groups with 3 molecules each and the rmsds are low. I then read in the ncs_spec file and an mtz file with map coefficients into phenix.ncs_average. I used the FOFCWT, PHFOFCWT coefficients. The output map seems cleaner than the unaveraged map and shows some of the same features, but the density around the 3 molecules is not identical. 2 of them look very similar, but the density around one of them is somewhat different. How is this possible if the map is averaged? Thanks for any suggestions or explanations. Ursula -- Ursula Schulze-Gahmen, Ph.D. Assistant Researcher UC Berkeley, QB3 356 Stanley Hall #3220 Berkeley, CA 94720-3220

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AutoBuild Question
by Page, Rebecca 12 Dec '11

12 Dec '11

Dear phenix community: I ran AutoBuild.dat with a seq.dat file that has 3 separate sequences. Chains A and B were built, but chain C was not, even though there is density for the third chain. It occurred to me that only two of the three chains may have been read in. I seem to recall that seq.dat can be a maximum of two sequences, but am not sure. So, is there a limit to the number of sequences that can be present in seq.dat and if so, what is the limit. Thanks in advance, Rebecca

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phenix.refine_failed
by Xue-Yuan Pei 12 Dec '11

12 Dec '11

Dear Phenix Experts: My phenix.refine has developped the following error (see below). I tried to check my PDB format, there is not B-factor error. so what could be wrong that stoped my phenix.refine without PDB and .def files in the output? Many thanks for your advice. Xue yuan Pei, Ph.D Department of Biochemistry University of Cambridge Cambridge CB2 1GA U.K > Error messages: > Traceback (most recent call last): > File > "/usr/local/xtal/phenix-1.7.2-869/phenix/phenix/command_line/refine.py", > line 11, in <module> > command_line.run(command_name="phenix.refine", args=sys.argv[1:]) > File > "/usr/local/xtal/phenix-1.7.2-869/phenix/phenix/refinement/command_line.py", > line 105, in run > refine_object.write_refined_pdb(f_pdb) > File > "/usr/local/xtal/phenix-1.7.2-869/phenix/phenix/refinement/driver.py", > line 1284, in write_refined_pdb > ignore_hd = not self.neutron_refinement) > File > "/usr/local/xtal/phenix-1.7.2-869/cctbx_project/mmtbx/model_statistics.py", > line 534, in __init__ > ignore_hd = ignore_hd) > File > "/usr/local/xtal/phenix-1.7.2-869/cctbx_project/mmtbx/model_statistics.py", > line 449, in __init__ > molprobity_scores=True) > File "/usr/local/xtal/phenix-1.7.2-869/cctbx_project/mmtbx/model.py", > line 1063, in geometry_statistics > molprobity_scores = molprobity_scores) > File > "/usr/local/xtal/phenix-1.7.2-869/cctbx_project/mmtbx/model_statistics.py", > line 112, in __init__ > self.clashscore_obj.analyze_clashes(hierarchy = pdb_hierarchy) > File > "/usr/local/xtal/phenix-1.7.2-869/cctbx_project/mmtbx/validation/clashscore.py", > line 167, in analyze_clashes > stdin_lines=tmp_r.as_pdb_string()) > File > "/usr/local/xtal/phenix-1.7.2-869/cctbx_project/iotbx/pdb/hierarchy.py", > line 527, in as_pdb_string > siguij=siguij) > RuntimeError: atom B-factor does not fit into F6.2 format: > "ATOM 1 N GLY A 1 " > B-factor: 111147.29 >

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phenix.refine_failed
by Christian Roth 12 Dec '11

12 Dec '11

Hi, indeed your B-Factor shown in the error message for Gly A 1 is unrealistic. Is maybe in your pdb-file a space missing? I think a 8 digit B-Factor is not possible in the pdb format. Best Regards Christian

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Phaser not writting out ligands
by Yarrow Madrona 09 Dec '11

09 Dec '11

Hello, I am having trouble with Phaser not writing out my ligands (HEME and small molecule) to it's output PDB even though they are in the input PDB. I am running through the GUI using Phenix version 1.7.3-921. Phenix refine recognizes HEME from the CCP4 library I think so I am not sure why I at least do not get a HEME in the output PDB. Thanks for your help. -Yarrow -- Yarrow Madrona Graduate Student Molecular Biology and Biochemistry Dept. University of California, Irvine Natural Sciences I, Rm 2403 Irvine, CA 92697 -- 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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Please apply for RapiData 2012, a course on Data Collection and Structure Solving at the NSLS.
by Robert Sweet 09 Dec '11

09 Dec '11

We are offering RapiData 2012, the fourteenth offering of our popular course: Rapid Data Collection and Structure Solving at the NSLS: A Practical Course in Macromolecular X-Ray Diffraction Measurement The course will be held 22-27 April 2012: http://www.bnl.gov/rapidata/. Students could be at any level from advanced undergraduate to full professor. The course should accommodate 48 students total. We encourage all students to bring their own specimens for data collection, and to bring old data for the data-reduction and structure-solving tutorials. Please read the Course Announcement at http://www.bnl.gov/RapiData/. You'll see that many experts in the field will be available for lectures and tutorials. You'll find the application materials on the Course Application tab at this site. For the tenth time we will hold a short lecture course on the fundamentals of crystallography for roughly five hours on Sunday 22 April. The body of the RapiData course really requires that students have a healthy knowledge of crystallography. For potential students who have some experience but are shaky about fundamentals, this course will help. There will be a small additional fee for the fundamentals course, to pay for Saturday night accomodations and food on Sunday morning and noon. Latin American Scientists: Several scholarships are available, from the International Union of Crystallography, to pay partial travel and subsistence costs for Latin-American students and junior faculty (under 40 yrs). Please apply for the course, and then contact R. Sweet (sweet(a)bnl.gov) if you are interested in applying for a scholarship. In accordance with the standards of the International Union of Crystallography, we observe the basic policy of non-discrimination, affirming the right and freedom of scientists to associate in international scientific activity without regard to such factors as citizenship, religion, creed, political stance, ethnic origin, race, colour, language, age, or gender, in accordance with the Statutes of the International Council for Science. At this course no barriers will exist beyond the application procedure that would prevent the participation of bona fide scientists. Please apply or send your students to our course, Bob Sweet, Sonya Kiss, and Alex Soares Course Announcement at http://www.bnl.gov/RapiData/ ========================================================================= Robert M. Sweet E-Dress: sweet(a)bnl.gov Group Leader, PXRR: Macromolecular ^ (that's L Crystallography Research Resource at NSLS not 1) http://px.nsls.bnl.gov/ Biology Dept Brookhaven Nat'l Lab. Phones: Upton, NY 11973 631 344 3401 (Office) U.S.A. 631 344 2741 (Facsimile) =========================================================================

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map output from ncs_average
by Ursula Schulze-Gahmen 09 Dec '11

09 Dec '11

I used ncs_average to create an averaged fo-fc map. From the manual I thought that the output map is a CCP4 map. I have however difficulties to read it into Pymol as ccp4 map. It is not recognized. Any suggestions? Ursula -- Ursula Schulze-Gahmen, Ph.D. Assistant Researcher UC Berkeley, QB3 356 Stanley Hall #3220 Berkeley, CA 94720-3220

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print_sequence
by Bradley Hintze 09 Dec '11

09 Dec '11

Hi, I am analyzing many PDBs vai a script. Thus, I am feeding print_sequence the full path of the given PDB. This has the unfortunate effect of having a filename more than 80 char. As such the '>filename' line is split into two lines making parsing less than ideal. Is there a way I can avoid having the full path on the '>' line and still give print_sequence the full path? Or can that feature be added? Thanks, -- Bradley

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excluding atoms from refinement
by Crystal VanderZanden 08 Dec '11

08 Dec '11

Does anybody know if there a general code that will allow us to exclude something from refinement? I would like to specify that there is a particular part of my structure that I don't want to refine the position. I've thought about deleting those atoms from the pdb file, but then that phasing information is excluded from the refinement. Any ideas? Thanks, Crystal

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