- phenixbb - phenix-online.org

Hydrogen bonds
by Owen Pornillos 21 Jul '10

21 Jul '10

Hi - Is it possible to explicitly declare a hydrogen bond restraint for non- backbone atoms, e.g., one between a helix capping Ser Ogamma atom and a backbone NH? Thanks, Owen

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Re: [phenixbb] Selecting ellipsoid of data
by Kay Diederichs 21 Jul '10

21 Jul '10

Hi Frank, "such a tool" is at http://strucbio.biologie.uni-konstanz.de/xdswiki/index.php/Aniso_cutoff where it's meant to be applied to INTEGRATE.HKL which comes out of XDS. Doing it this way has the benefit that the statistics printed out by XDS' CORRECT (or SCALA/TRUNCATE; there are people who prefer that route) match the data you refine agains. HTH, Kay > Message: 1 > Date: Thu, 15 Jul 2010 06:32:40 +0100 > From: Frank von Delft<frank.vondelft(a)sgc.ox.ac.uk> > To: PHENIX user mailing list<phenixbb(a)phenix-online.org> > Subject: [phenixbb] Selecting ellipsoid of data > Message-ID:<4C3E9D78.5030203(a)sgc.ox.ac.uk> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi, is there a tool in phenix that allows me to select an ellipsoid of > data -- specified e.g. by the highest resolutions in three reciprocal > lattice directions. (Yes, I'm playing with anisotropy, "playing" being > the operative word.) > > phx > > > ------------------------------ > > Message: 2 > Date: Wed, 14 Jul 2010 22:47:30 -0700 > From: "Ralf W. Grosse-Kunstleve"<rwgk(a)cci.lbl.gov> > To: phenixbb(a)phenix-online.org > Subject: Re: [phenixbb] Selecting ellipsoid of data > Message-ID:<201007150547.o6F5lUoL018490(a)cci.lbl.gov> > Content-Type: text/plain; charset=us-ascii > > Hi Frank, > >> Hi, is there a tool in phenix that allows me to select an ellipsoid of >> data -- specified e.g. by the highest resolutions in three reciprocal >> lattice directions. (Yes, I'm playing with anisotropy, "playing" being >> the operative word.) > > I'm not aware of such a tool. > > Ralf > > > ------------------------------ > > Message: 3 > Date: Thu, 15 Jul 2010 07:15:58 +0100 > From: Frank von Delft<frank.vondelft(a)sgc.ox.ac.uk> > To: "Ralf W. Grosse-Kunstleve"<rwgk(a)cci.lbl.gov>, PHENIX user mailing > list<phenixbb(a)phenix-online.org> > Subject: Re: [phenixbb] Selecting ellipsoid of data > Message-ID:<4C3EA79E.2030503(a)sgc.ox.ac.uk> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi Ralf > > Yeah, I figured. So if I want to use cctbx, where do I start? Just a > pointer to a) package and b) function where I'll see the syntax. > > So equation for ellipsoid is x^2/a^2 + y^2/b^2 + z^2/c^2 = 1; so I > imagine I take each reflection, convert each of h,k,l to 1/reso, and > with a = 1/res(a*), I just check whether the above is< 1. > > The main thing I still need is to convert h,k,l into orthogonal > coordinates.... or do I? I suppose I don't, as what I care for is not > whether it's "really" an ellipsoid, only whether it cuts through miller > index space anisotropically. > > Hmmmm... I may be able to do it in sftools; but if you can in<1minute > give me a link to where to look to get started in cctbx, that would be > awesome. > > (Thanks for listening :) > > > > >> Hi Frank, >> >> >>> Hi, is there a tool in phenix that allows me to select an ellipsoid of >>> data -- specified e.g. by the highest resolutions in three reciprocal >>> lattice directions. (Yes, I'm playing with anisotropy, "playing" being >>> the operative word.) >>> >> I'm not aware of such a tool. >> >> Ralf

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Iodide scattering factor
by Owen Pornillos 20 Jul '10

20 Jul '10

Hi BB, I am refining a structure that contains iodide ions. I remember some previous posts that PHENIX does not take into account the charge state and uses scattering factors for neutral atoms only. Is this still true? Thanks, Owen

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error on the latest phenix
by Jian Wu 20 Jul '10

20 Jul '10

Hi all, Today, I download the latest version phenix-1.6.3-473 and everything is ok during the installation. However, when I open the graphical phenix, something wrong has happened showed as below: Traceback (most recent call last): File "/local/prog/phenix-1.6.3-473/phenix/wxGUI2/command_line/main.py", line 13, in <module> run(sys.argv[1:]) File "/local/prog/phenix-1.6.3-473/phenix/wxGUI2/command_line/main.py", line 7, in run from wxGUI2 import App File "/local/prog/phenix-1.6.3-473/phenix/wxGUI2/App.py", line 6, in <module> import wx.lib.dialogs ImportError: No module named wx.lib.dialogs Any suggestions and comments will be appreciated. Best, Jian -- Jian Wu Ph.D. Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences (CAS) Tel: 0086-21-54921217 Email: protease(a)gmail.com

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Whic mtz file to use and parameters for phenix.refine (GUI) to set?
by Hermella Woldemdihin 20 Jul '10

20 Jul '10

Hi, I am new to phenix.refine. I'm using the graphical interface. I hav processed my dfiffraction data and used Phaser MR for molecular replacement. And I goyt a result: a solution pdb file and the associated mtz file. 1. So I use the mtz file from this Phaser MR solution or the original file from my data processing in phenix.refine? 2. I have set parameters for phenix.refine like this: Is there other settings for the parameter which I should do for a better result? PDB data: my solution from Phaser MR XRAY DATA= ???? Simulated Annealing=1000 Update waters Refine Target weights: Wxc=0.8 Wxu=1.6 Cycles=5 Fix rotamers Fix bad side chains

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modify the helices
by xinghua qin 19 Jul '10

19 Jul '10

hi everyone: Thanks for all the response! what I said last time may be chinglish and lead to some misunderstanding, the word I said fix a helix means that the model quality of the helix is not very good, I want to modify it manually.It is so hard to do this in low resolution.I modified the helix according to the electron density map, after refinement, large red areas appear in the difference map. That made me crazy! Are there any suggestions or any reviews about this point? I am new beginner to structural biology, any suggestions are welcomed ! Best regards Xinghua Qin Xinghua Qin College of Biological Sciences No.2, Yuan Ming Yuan West Road Haidian District?Beijing?China?100094 Tel: +86-10-62732672 > > > Message: 2 > Date: Fri, 16 Jul 2010 22:10:32 -0700 > From: Pavel Afonine <pafonine(a)lbl.gov> > To: PHENIX user mailing list <phenixbb(a)phenix-online.org> > Subject: Re: [phenixbb] sum(occ)<1? > Message-ID: <4C413B48.305(a)lbl.gov> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi Ed, > > > Reset occupancies that are outside the [0,1] range at every step of > > minimization. > > this simply will not work: this will invalidate the internal memory of > LBFGS minimizer that we use in phenix.refine and as result it will drive > it crazy. > > Pavel. > > > > ------------------------------ > > Message: 3 > Date: Fri, 16 Jul 2010 22:24:35 -0700 > From: Pavel Afonine <pafonine(a)lbl.gov> > To: PHENIX user mailing list <phenixbb(a)phenix-online.org> > Subject: Re: [phenixbb] how to fix a secondary structure? > Message-ID: <4C413E93.6010002(a)lbl.gov> > Content-Type: text/plain; charset=UTF-8; format=flowed > > Hi Xinghua, > > you can use secondary structure restrains that are available in > phenix.refine. It will automatically figure out secondary structure and > apply proper restrains. This should preserve your helix geometry and > still refine it. > > Example: > > phenix.refine model.pdb data.mtz main.secondary_structure_restraints=true > > > Recently I am trying to fix a helice, but found that it is so hard > > for me because of the poor resolution(3.2A) and also a unvisible loop > > near it, so is there any way to just fix a helice ? can I get it out > > of the whole structure to refine it? > > If you still prefer not refining that helix over applying > secondary-structure restrains, then you can do that too: > > phenix.refine model.pdb data.mtz refine.sites.individual="not (chain A > and resseq 123:156)" > > where atom selection > > chain A and resseq 123:156 > > selects your helix, and prefix "not" means you exclude it from refinement. > > Of course you can do all this from PHENIX GUI. > > Let me know if you have any questions. > > Pavel. > > > ------------------------------ > > Message: 4 > Date: Fri, 16 Jul 2010 22:48:52 -0700 > From: Pavel Afonine <pafonine(a)lbl.gov> > To: PHENIX user mailing list <phenixbb(a)phenix-online.org> > Subject: Re: [phenixbb] how to fix a secondary structure? - P.S. > Message-ID: <4C414444.8080208(a)lbl.gov> > Content-Type: text/plain; charset="utf-8"; Format="flowed" > > By the way, more information about secondary structure restraints in > phenix.refine you can find in recent PHENIX Newsletter (pages 12-17): > > http://www.phenix-online.org/newsletter/CCN_2010_07.pdf > > Pavel. > > > On 7/16/10 5:52 PM, xinghua qin wrote: > > Hi phenixers: > > Recently I am trying to fix a helice, but found that it is so hard > > for me because of the poor resolution(3.2A) and also a unvisible loop > > near it, so is there any way to just fix a helice ? can I get it out > > of the whole structure to refine it? > > > > Best regards > > > > Xinghua Qin > > > > -- > > Xinghua Qin > > College of Biological Sciences > > No.2, Yuan Ming Yuan West Road > > Haidian District?Beijing?China?100094 > > Tel: +86-10-62732672 > > > > > > ------------------------------ > > >

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sum(occ)<1?
by Ed Pozharski 17 Jul '10

17 Jul '10

Let's say there are two orientations of a ligand for which occupancies need to be refined. By default, the sum of the two will be fixed at 1.0. From quick look at the manual, the only way to have the sum(occ) at lower level is to reset main.occupancy_max. However, this will probably affect all the atoms for which occupancies are refined, which is undesirable (while ligand may have total occupancy of <1, alternate conformers for protein residues should always add up to 1). Am I missing something or the only way to get this done is to refine twice - once only for ligand occupancy, and then for the rest of the model. And what if total occupancy of the ligand is unknown? Is there a way to allow sum(occ) to be anywhere between 0 and 1? -- "I'd jump in myself, if I weren't so good at whistling." Julian, King of Lemurs

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how to fix a secondary structure?
by xinghua qin 17 Jul '10

17 Jul '10

Hi phenixers: Recently I am trying to fix a helice, but found that it is so hard for me because of the poor resolution(3.2A) and also a unvisible loop near it, so is there any way to just fix a helice ? can I get it out of the whole structure to refine it? Best regards Xinghua Qin -- Xinghua Qin College of Biological Sciences No.2, Yuan Ming Yuan West Road Haidian District，Beijing，China，100094 Tel: +86-10-62732672

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How to manually define NCS group for phenix.autobuild?
by J J 15 Jul '10

15 Jul '10

Hello everyone, It is easy to manually define NCS group in phenix.refine, but how to manually define it in phenix.autobuild? phenix.simple_ncs_from_pdb will generate an .ncs_spec file which can be used in autobuild, but what if I want to define ncs group myself, say removing some residues from the automatically detected one. I can manually remove them from the .ncs_spec file, but the operations defined in the .ncs_spec is no longer valid? Thanks in advance Jason U Pitt

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How to define multiple rebuilding region?
by J J 15 Jul '10

15 Jul '10

Dear All, I am trying to use phenix.autobuild to rebuild some poor regions in my model. Since I know which part should be rebuilt, I was thinking using rebuild_chain_list in combination with rebuild_res_end_list and rebuild_res_start_list. The manual suggested: " You can specify more than one region by using the Parameter Group Options button to add lines." What is this Parameter Group Options button? I am running through an .eff file. I have tried something like this: rebuild_chain_list= " 'A, 'B' " rebuild_res_end_list= 50 rebuild_res_start_list=10 However, it does not work. It becomes more obscure to me what if I want to rebuild more than one region in a single chain? Thanks in advance. Jason ------------------------------------------------ University of Pittsburgh School of Medicine 3501 Fifth Avenue Pittsburgh, PA 15261 ------------------------------------------------

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Rwork/Rfree and aniso ADPs
by Roberto Battistutta 15 Jul '10

15 Jul '10

Dear All, I have noticed a (too much?) increment in the difference between Rwork and Rfree upon introduction of anisotropic ADPs, from 18.6/21.6 (isotropic ADPs) to 14.5/20.0. The max resolution is 1.6 A with good statistics. What could be the reason for that? Is 1.6 A too low for anisotropic ADPs in phenix? I would like to keep Rwork/Rfree values nearer, how could I do? Thank you. Bye, Roberto. Roberto Battistutta Associate Professor Department of Chemistry University of Padua via Marzolo 1, 35131 Padova - ITALY tel. +39.049.8275265/67 fax. +39.049.8275239 roberto.battistutta(a)unipd.it www.chimica.unipd.it/roberto.battistutta/ VIMM (Venetian Institute of Molecular Medicine) via Orus 2, 35129 Padova - ITALY tel. +39.049.7923236 fax +39.049.7923250 www.vimm.it

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Selecting ellipsoid of data
by Frank von Delft 15 Jul '10

15 Jul '10

Hi, is there a tool in phenix that allows me to select an ellipsoid of data -- specified e.g. by the highest resolutions in three reciprocal lattice directions. (Yes, I'm playing with anisotropy, "playing" being the operative word.) phx

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Interpreting new ligands
by Monique Gangloff 13 Jul '10

13 Jul '10

Hi, I have not managed to refine glycans such as beta-L-fucose (FUL) that are not listed in the PHENIX library. I am not sure what the problem is. eLBOW works fine and creates a cif file for FUL. elbow.ligand_linking file.pdb crashes with the following error message: "Fatal problems interpreting PDB file". The refinement works fine when I remove FUL from my pdb file. Any suggestion would be very welcome. Cheers, Monique

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Re: [phenixbb] Occupancy Refinement of substrate and product occupying the same coordinates.
by Joseph Brock 13 Jul '10

13 Jul '10

Hi Ralf and Pavel, Thanks so much for the quick response and advice. I have tried both of your suggestions: To assign different altloc identifiers, with the same res ID, chain ID and different resnames (Ralf) and with the same resname (Pavel). I had thought of this but was afraid it would cause confusion with the associated .cif files. Unfortunately, this appears to be the case. For your strategy Ralf, the .cif and .pdb files created by "phenix.ready_set modified.pdb" and the .cif file created by "phenix.elbow modified.pdb" were all accepted by phenix.refine, however the two molecules were still driven away from each other =( For your strategy Pavel, I could not get phenix.refine to run with either the pehnix.ready_set, or the phenix.elbow outputs. It consistently gives the following .cif file error: Sorry: Fatal problems interpreting PDB file: Number of atoms with unknown nonbonded energy type symbols: 52 Please edit the PDB file to resolve the problems and/or supply a CIF file with matching restraint definitions, along with apply_cif_modification and apply_cif_link parameter definitions if necessary. Also note that phenix.ready_set and phenix.elbow are available for creating restraint definitions (CIF files). I will send to you the appropriate sections of both modified pdb files off list and the associated .cif files. Thanks so much again to both of you for all of your help. Cheers, Joe. _________________________________________________________________ View photos of singles in your area! Looking for a hot date? http://clk.atdmt.com/NMN/go/150855801/direct/01/

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Occupancy Refinement of substrate and product occupying the same coordinates.
by Joseph Brock 13 Jul '10

13 Jul '10

Dear Phenix community, I have a crystal structure which I believe involves the substrate and product of the enzymatic reaction occupying the same space within the active site. Ideally, I would like to refine their occupancies to sum to a value less than or equal to 1, as one would for alternate conformations of the same molecule. Phenix does not recognize that they both have partial occupancies however, and the steric repulsion consequently drives them apart during refinement. Does anyone have any advice on achieving this? This is a 1.6Å structure using Phenix version 1.6.1-353. Many thanks for all your help in advance, Joe. _________________________________________________________________ Browse profiles for FREE! Meet local singles online. http://clk.atdmt.com/NMN/go/150855801/direct/01/

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Bad selections in phenix.refine
by Mark A Saper 13 Jul '10

13 Jul '10

When running phenix.refine from the GUI, definitions for rigid body groups in phenix.refine that are syntactically wrong, causes the job to just hang with "running" status but no CPU is used. It would be nice if either the GUI checked for valid selections, or if phenix.refine returned an appropriate error code that would be recognized by the GUI. Thanks, -Mark _________________________________ Mark A. Saper, Ph.D. Associate Professor of Biological Chemistry University of Michigan Biophysics, 3040 Chemistry Building 930 N University Ave Ann Arbor MI 48109-1055 U.S.A. saper(a)umich.edu phone (734) 764-3353 fax (734) 764-3323 http://www.biochem.med.umich.edu/?q=saper http://www.strucbio.umich.edu/

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phenix reindex
by Gregor Hagelueken 12 Jul '10

12 Jul '10

Hi, I got the following output from phenix.xtriage: ... The full list of Patterson peaks is: x y z height p-value(height) ( 0.500, 0.500, 0.000 ) : 27.056 (2.355e-03) ( 0.333,-0.488, 0.000 ) : 4.790 (9.454e-01) If the observed pseudo translationals are crystallographic the following spacegroups and unit cells are possible: space group operator unit cell of reference setting P 43 (a+b,-a+b,c) x+1/2, y+1/2, z (83.41, 83.41, 42.64, 90.00, 90.00, 90.00) ... I know I can use REINDEX in CCP4 to reindex the data, but is there a way to do it in phenix? Cheers, Gregor

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July 15, 2010 deadline- User proposal submission for Collaborative Crystallography at BCSB
by Banumathi Sankaran 12 Jul '10

12 Jul '10

Dear Users, The deadline for Sep/Oct 2010 Collaborative Crystallography proposals will be *July 15, 2010. * ---------------------------------------------------------------------------------------- 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 Sep/Oct 2010 allocation period, proposals must be submitted by *July 15, 2010.* The deadline for CC proposals for the time period Nov/Dec 2010 will be Sep 15, 2010. Regards, Banumathi Sankaran

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Run locally/detached
by Roberto Battistutta 12 Jul '10

12 Jul '10

Dear All, what is the exact difference in running a job from the Phenix GUI "locally" or detached"? Is any of the two to prefer (I am working on a Mac Pro, OS X 10.5.8)? Thank you. Bye, Roberto. Roberto Battistutta Associate Professor Department of Chemistry University of Padua via Marzolo 1, 35131 Padova - ITALY tel. +39.049.8275265/67 fax. +39.049.8275239 roberto.battistutta(a)unipd.it www.chimica.unipd.it/roberto.battistutta/ VIMM (Venetian Institute of Molecular Medicine) via Orus 2, 35129 Padova - ITALY tel. +39.049.7923236 fax +39.049.7923250 www.vimm.it

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phenix.maps kick maps: seed and error
by Alastair Fyfe 12 Jul '10

12 Jul '10

Hello, I have started using phenix.maps to calculate some kicked omit maps and had two questions: 1) is there a way to control parameters such as the initial random seed or number of kick iterations? Different runs with the same params and input files appear to give different map coefficient outputs. 2) after what appears to be a successful run on a pdb containing two rna chains and solvent atoms I (a) removed all non-RNA atoms and (b) moved all RNA atoms to corresponding symmetry locations within the ASU. No other changes were involved but I now receive the following python stack trace: Compute maps. Traceback (most recent call last): File "/home/afyfe/phenix/phenix-1. 6.1-357/cctbx_project/mmtbx/command_line/maps.py", line 192, in <module> run(args=sys.argv[1:]) File "/home/afyfe/phenix/phenix-1.6.1-357/cctbx_project/mmtbx/command_line/maps.py", line 168, in run params = params.maps.map_coefficients) File "/home/afyfe/phenix/phenix-1.6.1-357/cctbx_project/mmtbx/maps/__init__.py", line 295, in __init__ coeffs = map_coefficients_from_fmodel(fmodel = fmodel, params = mcp) File "/home/afyfe/phenix/phenix-1.6.1-357/cctbx_project/mmtbx/maps/__init__.py", line 257, in map_coefficients_from_fmodel average_maps = False).map_coeffs File "/home/afyfe/phenix/phenix-1.6.1-357/cctbx_project/mmtbx/map_tools.py", line 73, in __init__ map_helper_obj = fmodel.map_calculation_helper() AttributeError: 'twin_model_manager' object has no attribute 'map_calculation_helper' thanks, Alastair

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solve won't run.
by alexander.singer＠utoronto.ca 09 Jul '10

09 Jul '10

Hi -- I installed phenix-installer-1.6-289-intel-linux-2.6.tar on my Fedora Core 5 linux partition and most things run -- but not solve (which I was first trying from autosolve). As recommened by the documentation, when I type phenix.solve, here's what I have --- [root@ausinger oth32_c]# phenix.solve binary=/usr/local/phenix-1.6-289/build/intel-linux-2.6/solve_resolve/exe/solve SOLVEDIR=/usr/local/phenix-1.6-289/solve_resolve/ext_ref_files SYMOP=/usr/local/phenix-1.6-289/solve_resolve/ext_ref_files/symop.lib SYMINFO=/usr/local/phenix-1.6-289/solve_resolve/ext_ref_files/syminfo.lib CCP4_OPEN=UNKNOWN SOLVE_RESOLVE_MALLOC_MAX=1862380800 /usr/local/phenix-1.6-289/build/intel-linux-2.6/solve_resolve/exe/solve: error w hile loading shared libraries: /usr/local/phenix-1.6-289/build/intel-linux-2.6/l ib/libimf.so: cannot restore segment prot after reloc: Permission denied Do you know what I can do about this? Thanks Alex -- Dr. Alex Singer C.H. Best Institute 112 College St. Room 70 University of Toronto Toronto, Canada, M5G 1L6 416-978-4033

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Re: [phenixbb] solve won't work
by alexander.singer＠utoronto.ca 08 Jul '10

08 Jul '10

Tom -- what you recommended seemed to work -- phenix.solve doesn't crash out any more, and I'm just trying to see if I get a solution using autosol with my new dataset. Again, thanks and I'll let you know if I find any further problems. Alex -- Dr. Alex Singer C.H. Best Institute 112 College St. Room 70 University of Toronto Toronto, Canada, M5G 1L6 416-978-4033

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Phenix auto-excluding some reflections
by Sam Stampfer 08 Jul '10

08 Jul '10

Hi, I'm in the process of depositing coordinates for a few structures and I noticed that the "number of unique reflections (observed)" is different in the "refinement statistics section" (108812) (read automatically from the phenix-refined pdb file) versus the "reflections" section (118749). The "cut- off sigma(F)" value is 0.12 (read automatically from the phenix-refined file). What criteria does phenix use to reject these ~10,000 reflections? Thanks! -Sam

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phenix-online.org web server issues on Friday?
by Ben Eisenbraun 06 Jul '10

06 Jul '10

Howdy PHENIXians, One of my users reported a "Error attempting to get current version list: HTTP Error 500: Internal Server Error" on Friday morning last week. Looking through the source, I see: phenix/phenix/utilities/check_version.py which seems to do a version lookup against: http://www.phenix-online.org/download/get_versions.cgi It would be good to set an explicit timeout on the urlopen so the GUI doesn't hang on network errors, web server blow ups, etc. AFAICT, urllib2 uses the default global timeout for the socket module, but socket has no default timeout, so calls to a broken web server can hang your python program. -ben -- | Ben Eisenbraun | Software Sysadmin | | Structural Biology Grid | http://sbgrid.org | | Harvard Medical School | http://hms.harvard.edu |

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TLS refinement in phenix
by Mirage Singh Baliyan 06 Jul '10

06 Jul '10

Dear all, I am refining a 2.25 A structure in phenix using TLS parameters. In the generated PDB there is one ANISOU record along with the ATOM record. I am not understanding this. can anybody help me about this Regards Mirage singh Protein crystallography Laboratory IMTECH (IMTECH is a research establishment of CSIR, india) Chandigarh

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