August 2011 - phenixbb - phenix-online.org

Problem with version 1.7.1-743 on OSX
by Miguel Ortiz Lombardía 07 Feb '12

07 Feb '12

Dear phenix developers, Last Friday (April 29) we upgraded phenix to its most recent version (1.7.1-743). Installation went smoothly on both Mac (10.6.7 64-bit) and Linux (Ubuntu 10.10 64-bit) machines. However, we observe that we cannot use phenix.refine (I don't know for the rest of the applications) from the GUI on the Macs. phenix.refine does work from the command line, though. So, whenever we try to add a pdb in the GUI, we get this error message: This application does not support the file type for /path/to/the/file.pdb (format: txt) If we try to open an mtz, it sometime works, but most often we get: PHENIX did not recognize the file type for /path/to/the/file.mtz! and on the terminal from where the GUI was started we can find: **SYMMETRY OPERATOR ERROR** Error in interpreting symop " X+2/3, Y+1/3, Z+1/3 " **SYMMETRY OPERATOR ERROR** Error in interpreting symop " -Y+2/3, X-Y+1/3, Z+1/3 " (and so on, so forth). Any clues ? Best regards, -- Miguel Architecture et Fonction des Macromolécules Biologiques (UMR6098) CNRS, Universités d'Aix-Marseille I & II Case 932, 163 Avenue de Luminy, 13288 Marseille cedex 9, France Tel: +33(0) 491 82 55 93 Fax: +33(0) 491 26 67 20 mailto:[email protected] http://www.afmb.univ-mrs.fr/Miguel-Ortiz-Lombardia -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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AutoBuild Question
by Page, Rebecca 13 Dec '11

13 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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Zinc-cysteine bond refinement in phenix_refine
by Zhang yu 01 Sep '11

01 Sep '11

Dear all, I have been stuck in the problem for a while. I appreciate any suggestions. I have two zinc binding domain in my 3A structure which are Cys4 type. The geometry is OK for one domain, but it is not refined properly in the other one. The problems during phenix refinement are 1. Zinc is always refined to position ~0.5A off from its correct position 2. The refined bond lengths of four Cys-Zn are all below 2.3 3. Sometimes, distances between SG atoms of nearby cysteines are too close, and coot just connect them as disulfate bond. 4. Sometimes, I get the following message showing that all bond angles are outliers with >8 sigmas, I listed part of the outliers. Top angle outliers (sorted by deviation): atoms ideal model difference deviation (sigma) ---------------------------------------------------------------------------- SG CYS D1204 57.894 104.470 46.576 9.32 ZN ZN D2001 SG CYS D1112 SG CYS D1201 50.842 92.496 41.654 8.33 ZN ZN D2001 SG CYS D1204 SG CYS D1204 126.952 92.496 -34.455 -6.89 ZN ZN D2001 SG CYS D1201 SG CYS D1201 52.183 86.105 33.922 6.78 ZN ZN D2001 SG CYS D1112 SG CYS D1194 152.275 119.729 -32.546 -6.51 ZN ZN D2001 SG CYS D1112 SG CYS D1112 89.273 119.729 30.456 6.09 ZN ZN D2001 SG CYS D1194 I also post my metal.edit file for refinement refinement.geometry_restraints.edits { bond { action = *add atom_selection_1 = name ZN and chain D and resname ZN and resseq 2001 atom_selection_2 = name SG and chain D and resname CYS and resseq 1201 distance_ideal = 2.310000 sigma = 0.100 } } refinement.geometry_restraints.edits { bond { action = *add atom_selection_1 = name ZN and chain D and resname ZN and resseq 2001 atom_selection_2 = name SG and chain D and resname CYS and resseq 1194 distance_ideal = 2.310000 sigma = 0.100 } } refinement.geometry_restraints.edits { bond { action = *add atom_selection_1 = name ZN and chain D and resname ZN and resseq 2001 atom_selection_2 = name SG and chain D and resname CYS and resseq 1112 distance_ideal = 2.310000 sigma = 0.100 } } refinement.geometry_restraints.edits { bond { action = *add atom_selection_1 = name ZN and chain D and resname ZN and resseq 2001 atom_selection_2 = name SG and chain D and resname CYS and resseq 1204 distance_ideal = 2.310000 sigma = 0.100 } } refinement.geometry_restraints.edits { angle { action = *add atom_selection_1 = name SG and chain D and resname CYS and resseq 1194 atom_selection_2 = name ZN and chain D and resname ZN and resseq 2001 atom_selection_3 = name SG and chain D and resname CYS and resseq 1201 angle_ideal = 112.172178 sigma = 5 } } refinement.geometry_restraints.edits { angle { action = *add atom_selection_1 = name SG and chain D and resname CYS and resseq 1112 atom_selection_2 = name ZN and chain D and resname ZN and resseq 2001 atom_selection_3 = name SG and chain D and resname CYS and resseq 1201 angle_ideal = 87.092184 sigma = 5 } } refinement.geometry_restraints.edits { angle { action = *add atom_selection_1 = name SG and chain D and resname CYS and resseq 1112 atom_selection_2 = name ZN and chain D and resname ZN and resseq 2001 atom_selection_3 = name SG and chain D and resname CYS and resseq 1194 angle_ideal = 118.116518 sigma = 5 } } refinement.geometry_restraints.edits { angle { action = *add atom_selection_1 = name SG and chain D and resname CYS and resseq 1204 atom_selection_2 = name ZN and chain D and resname ZN and resseq 2001 atom_selection_3 = name SG and chain D and resname CYS and resseq 1201 angle_ideal = 91.677138 sigma = 5 } } refinement.geometry_restraints.edits { angle { action = *add atom_selection_1 = name SG and chain D and resname CYS and resseq 1204 atom_selection_2 = name ZN and chain D and resname ZN and resseq 2001 atom_selection_3 = name SG and chain D and resname CYS and resseq 1194 angle_ideal = 130.829256 sigma = 5 } } refinement.geometry_restraints.edits { angle { action = *add atom_selection_1 = name SG and chain D and resname CYS and resseq 1204 atom_selection_2 = name ZN and chain D and resname ZN and resseq 2001 atom_selection_3 = name SG and chain D and resname CYS and resseq 1112 angle_ideal = 104.886672 sigma = 5 } } Questions, 1. Why the ideal bond angle are different in the metal.edit file and final model ? How does phenix determine the ideal bond_angle? For example, in the metal.edit file atom_selection_1 = name SG and chain D and resname CYS and resseq 1204 atom_selection_2 = name ZN and chain D and resname ZN and resseq 2001 atom_selection_3 = name SG and chain D and resname CYS and resseq 1112 The angle_ideal = 104.886672 But in the final model atoms ideal model difference deviation (sigma) ---------------------------------------------------------------------------- SG CYS D1204 57.894 104.470 46.576 9.32 ZN ZN D2001 SG CYS D1112 2. Do I need to put the following LINK in the pdb header to run refinement? LINK ZN ZN D2001 SG CYS D1201 1555 1555 2.34 LINK ZN ZN D2001 SG CYS D1112 1555 1555 2.33 LINK ZN ZN D2001 SG CYS D1194 1555 1555 2.38 LINK ZN ZN D2001 SG CYS D1204 1555 1555 2.37 3. After phenix refinement, the output pdb doesn't contain these LINK lines no matter what the inpout pdb is. Does phenix_refine use these restrains of LINK lines? Thanks. Yu Zhang Postdoc fellow Rutgers University

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phenix utility for cif->pdb?
by Francis E Reyes 29 Aug '11

29 Aug '11

I need to check a monomer library definition. Is there a phenix utility that'll make cif -> pdb easily? Thanks! F --------------------------------------------- Francis E. Reyes M.Sc. 215 UCB University of Colorado at Boulder

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Parallelization for optimization of wxu/wxc?
by Schubert, Carsten [JRDUS] 29 Aug '11

29 Aug '11

Hi, I was wondering if the optimization of the xyz and adp target weight could be parallelized and take advantage of multi-cpu systems? On the project I am working on now, the refinement time increased ~5.4 fold when with active optimization of these weights. Are there any plans for that in the works? Cheers, Carsten

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symmetry related bond restraint
by Bryan Lepore 28 Aug '11

28 Aug '11

[ dev-837 ] I am trying to understand a symmetry operation from coot as it bears on phenix bond in the geometry restraints. in essence: in coot, origin-pre-shift is (-1 0 0) and the symmetry-related atom I want is Y,X,-Z + (0 1 1) however, the correct operation in phenix is Y,X,-Z+1 ... I suspect I simply do not understand the transformation. if i could at least confirm this math is correct, i'd appreciate it. -Bryan supplemental: * SG92 * apparently correct because the geometry checks fail otherwise * the scenario is similar to the thread linked below: http://www.phenix-online.org/pipermail/phenixbb/2010-April/015000.html * essentially a crosspost by me on coot the other day : https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=COOT;e45be09a.1108 * coot 0.6.2 rev-3562

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Recovering Autobuild from tty disconnect
by Francis E Reyes 27 Aug '11

27 Aug '11

Our job submission node disconnects 'idle' after 4 hours of inactivity. As most grid / autobuild jobs take about that long I end being disconnected while the grid jobs complete. [1] Screen is not an option since access to the job submission node is via a load balancer and none of the job submission nodes allow access unless you're coming from the load balancer . i.e. there's no way to get to original machine where your screen has been started [2] all processes are sent SIGKILL during this automatic logout preventing the use of nohup.. will background=True work? [3] In the meantime, is it possible to resurrect the current autobuild? I've got FINISHED in all the autobuild's submitted to the grid, but everytime I try to combine_only=True run=my_run_number, I start from the beginning (with submitting the autobuild jobs to the cluster) even when I've moved the best of each build into MULTIPLE_MODELS. Thanks! F --------------------------------------------- Francis E. Reyes M.Sc. 215 UCB University of Colorado at Boulder

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occ are not zerp
by Kenneth A. Satyshur 27 Aug '11

27 Aug '11

I am running omit map on pdb file and I get Failed to carry out AutoBuild_build_cycle: Initial phenix refinement of AutoBuild_run_22_/edited_pdb.pdb with exptl_fobs_phases_freeR_flags.mtz failed...quitting... /usr/keck/u1/PriA/APS_Aug2011/phasing/AutoBuild_run_22_/LAST.LOG may have additional information... All occupancies in input PDB file are zero. yet CRYST1 85.433 85.433 111.682 90.00 90.00 120.00 P 32 SCALE1 0.011705 0.006758 0.000000 0.00000 SCALE2 0.000000 0.013516 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008954 0.00000 ATOM 931 N ALA N 308 4.340 -30.086 -9.129 1.00 39.02 N ATOM 932 CA ALA N 308 4.553 -29.451 -10.458 1.00 38.92 C ATOM 933 CB ALA N 308 3.225 -29.326 -11.198 1.00 38.66 C ATOM 934 C ALA N 308 5.202 -28.079 -10.295 1.00 37.85 C ATOM 935 O ALA N 308 5.278 -27.555 -9.185 1.00 38.80 O ATOM 936 N ALA N 309 5.633 -27.505 -11.414 1.00 36.99 N ATOM 937 CA ALA N 309 6.216 -26.142 -11.498 1.00 37.18 C ATOM 938 CB ALA N 309 5.194 -25.019 -11.222 1.00 36.42 C ATOM 939 C ALA N 309 7.457 -25.985 -10.646 1.00 34.05 C ATOM 940 O ALA N 309 7.404 -26.148 -9.436 1.00 31.65 O ATOM 941 N ALA N 310 8.570 -25.673 -11.311 1.00 34.03 N ATOM 942 CA ALA N 310 9.883 -25.614 -10.696 1.00 34.33 C ATOM 943 CB ALA N 310 10.332 -24.166 -10.573 1.00 31.89 C ATOM 944 C ALA N 310 9.895 -26.350 -9.337 1.00 36.59 C ATOM 945 O ALA N 310 10.250 -25.773 -8.304 1.00 40.46 O ATOM 946 N ALA N 311 9.479 -27.623 -9.364 1.00 36.20 N ATOM 947 CA ALA N 311 9.321 -28.471 -8.174 1.00 33.93 C ATOM 948 CB ALA N 311 8.446 -29.664 -8.503 1.00 34.46 C ATOM 949 C ALA N 311 10.659 -28.948 -7.641 1.00 32.37 C ATOM 950 O ALA N 311 10.943 -30.156 -7.619 1.00 31.59 O ATOM 951 N ALA N 312 11.479 -27.982 -7.229 1.00 30.93 N ATOM 952 CA ALA N 312 12.821 -28.234 -6.694 1.00 30.94 C ATOM 953 CB ALA N 312 12.740 -28.872 -5.308 1.00 30.60 C ATOM 954 C ALA N 312 13.680 -29.080 -7.647 1.00 30.22 C ATOM 955 O ALA N 312 13.405 -29.148 -8.853 1.00 32.14 O ATOM 956 N PRO N 313 14.739 -29.702 -7.116 1.00 28.06 N ATOM 957 CA PRO N 313 15.519 -30.706 -7.852 1.00 27.14 C ATOM 958 CB PRO N 313 16.820 -30.771 -7.044 1.00 27.81 C ATOM 959 CG PRO N 313 16.871 -29.482 -6.264 1.00 28.11 C they don't look zero to me. anyone get this error? -- Kenneth A. Satyshur, M.S.,Ph.D. Associate Scientist University of Wisconsin Madison, Wisconsin 53706 608-215-5207

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Dealing with malformed ligand geometries in phenix.refine
by Francis E Reyes 27 Aug '11

27 Aug '11

Hi all I've got 3.0A data and I'm ending up with distorted ligand geometry in phenix.refine. The model is complete and fitting the ligand is the final step (refined with individual_sites and individual_sites_real_space as suggested by an earlier posting). I've tried with a wxc_scale of 0.001 and it still looks wonky (tetrahedral C's not being so, etc). My cif is coming from phenix's internal db. Any suggestions? F --------------------------------------------- Francis E. Reyes M.Sc. 215 UCB University of Colorado at Boulder

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maybe not a phenix issue, but with mr_rosetta:
by Francis E Reyes 26 Aug '11

26 Aug '11

What exactly is the nature of the fragment files used for MR/rebuilding? I'm an RNA guy and may have to generate them myself for certain projects. F --------------------------------------------- Francis E. Reyes M.Sc. 215 UCB University of Colorado at Boulder

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