November 2018 - Chimera-users - RBVI Mailing Lists

How can I export the list of hydrogen bonding and clash/contact?
by Paris Tzou 15 Nov '18

15 Nov '18

Hi, I have a structure of protein-DNA complex. How can I export the list of hydrogen bonding and clash/contact, please? Thanks a lot, Paris

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Re: [Chimera-users] Fwd: Re: How to correct this error: ~/usr/chimera-1.12/lib/libgomp.so.1: version `GOMP_4.0' not found (required by /usr/lib/libopenbabel.so.4)
by Francois Berenger 14 Nov '18

14 Nov '18

On 11/15/18 9:51 AM, Francois Berenger wrote: > > > -------- Original Message -------- > Subject: Re: [Chimera-users] How to correct this error: > ~/usr/chimera-1.12/lib/libgomp.so.1: version `GOMP_4.0' not found > (required by /usr/lib/libopenbabel.so.4) > Date: 14/11/2018 18:42 > From: Greg Couch <gregc(a)cgl.ucsf.edu> > To: Francois Berenger <mlists(a)ligand.eu>, chimera > <chimera-users(a)cgl.ucsf.edu> > > That looks like a problem between libopenbabel and Chimera. The bug is > that libopenbabel.so was compiled with a newer compiler than what > Chimera was compiled with. You can try renaming > chimera-1.12/lib/libgomp.so.1 (eg., to libgomp.so.1.save) to see if it > fixes the problem. Yes, this workaround works: mv ~/usr/chimera-1.13/lib/libgomp.so.1.bck ~/usr/chimera-1.13/lib/libgomp.so.1.bck And I also needed to issue that one: mv ~/usr/chimera-1.13/lib/libz.so.1 ~/usr/chimera-1.13/lib/libz.so.1.bck > While I consider this a bug with the Python > openbabel package, it should be bundling and using a libopenbabel.so > that is compatible with the Python "manylinux1" ABI (based on CentOS 5), > we will investigate incorporating a workaround. Thanks a lot. Francois. > -- Greg > > > On 11/13/2018 5:53 PM, Francois Berenger wrote: >> Hello, >> >> On a Ubuntu 18.04.1 LTS, I get this error message when I start chimera. >> >> Is there a known fix? >> >> Am I running a too old version of chimera or should I run >> a version specially compiled for Ubuntu computers? >> >> Here is the full error message: >> --- >> # chimera >> Error while importing plipgui from >> /home/berenger/.local/lib/python2.7/site-packages: >> Traceback (most recent call last): >> File >> "/home/berenger/usr/chimera-1.12/share/chimera/extension/base.py", >> line 349, in _importExtension >> __import__(module) >> File >> "/home/berenger/.local/lib/python2.7/site-packages/plipgui/ChimeraExtension.py", >> line 8, in <module> >> from plipgui.core import cmd_plip, cmd_unplip >> File >> "/home/berenger/.local/lib/python2.7/site-packages/plipgui/core.py", >> line 50, in <module> >> from plip.modules.preparation import PDBComplex >> File >> "/home/berenger/.local/lib/python2.7/site-packages/plip/modules/preparation.py", >> line 13, in <module> >> from .detection import * >> File >> "/home/berenger/.local/lib/python2.7/site-packages/plip/modules/detection.py", >> line 12, in <module> >> from .supplemental import * >> File >> "/home/berenger/.local/lib/python2.7/site-packages/plip/modules/supplemental.py", >> line 26, in <module> >> import pybel >> File "/home/berenger/.local/lib/python2.7/site-packages/pybel.py", >> line 53, in <module> >> import openbabel as ob >> File >> "/home/berenger/.local/lib/python2.7/site-packages/openbabel.py", line >> 21, in <module> >> _openbabel = swig_import_helper() >> File >> "/home/berenger/.local/lib/python2.7/site-packages/openbabel.py", line >> 20, in swig_import_helper >> return importlib.import_module('_openbabel') >> File >> "/home/berenger/usr/chimera-1.12/lib/python2.7/importlib/__init__.py", >> line 37, in import_module >> __import__(name) >> ImportError: /home/berenger/usr/chimera-1.12/lib/libgomp.so.1: version >> `GOMP_4.0' not found (required by /usr/lib/libopenbabel.so.4) >> --- >> >> Thanks a lot, >> F. >> >> _______________________________________________ >> Chimera-users mailing list: Chimera-users(a)cgl.ucsf.edu >> Manage subscription: >> http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users

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(1) Autodock Vina executable on windows (2) selection of submodels
by Visvaldas K. 14 Nov '18

14 Nov '18

Dear colleagues, I'd like to report a couple of issues which have cropped up. (1) On Windows, running Autodock Vina in Chimea using local executable fails due to spaces in file path (gives error something like "File "C:\Program" not found). The thing is, the university computer admins do not allow change paths or copy system files around. It should be possible to escape spaces in file names, wouldn't it? (2) The selection of submodels does not work if it is used as a part of the list. For example, "sel #1.1" selects just the submodel 1 (let's say I have a set of 20 molecules in sdf file), which is fine, while "sel #1.1,#0" selects ALL submodels in #1 in addition to #0, and that does not seem to be right. Best regards, Visvaldas

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Secondary structure recognition issue in homology model
by Monika Tokmina-Lukaszewska 13 Nov '18

13 Nov '18

Dear Chimera Team, In my homology model (see attachment) it looks like there has been some issue with secondary structure recognition in one of the domains (highlighted in cyan). In .py file I added one of the protein templates (yellow) based on which the C-terminal domain was constructed. I am not sure what has happened to a final model, since template for that domain looks good. I was wondering if there is an option in Chimera which could fix that issue? Thank you for your time, Sincerely, Monika Lukaszewska -- Monika Lukaszewska, Ph.D. Senior Research Scientist Chemistry & Biochemistry Department Montana State University Bozeman MT, 59717 lab: (406) 994 5418 tokminalukas(a)montana.edu <tokminalukas(a)chemistry.montana.edu>

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Chimera installation
by Gonzalez Fernandez, Cristina 13 Nov '18

13 Nov '18

Hi all, I am new in the molecular docking field and I would like to start using Chimera. I would like to install it in Linux but use a GUI as in Windows. Is it possible? Thank you in advance! Cristina

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Save measured distances
by Dhananjay 13 Nov '18

13 Nov '18

Dear all, I am calculating distance between CA atoms as follows: sel #0:13@CA, #0:129@CA color red selection distance #0:13@CA #0:129@CA I want to save the measured distance between residue 13@CA and 129@CA in a file. I can do it using GUI. How can I do this within the command line ? Any help would be appreciated !! Thank you -- Joshi

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Editing mol2
by Francesco Pietra 13 Nov '18

13 Nov '18

Hi all: Is it possible editing .mol2 files with chimera? thanks francesco pietrta

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Drawing vectors depicting the movement of one conformer to another
by Beth Stroupe 12 Nov '18

12 Nov '18

Hi, I would like to make a figure depicting the movement of an RNA molecule from one conformation to another. It is not a simple rigid body rotation or translation but a rolling motion where some parts of the molecule move more than others. I would like to show vectors to show the rotation that are colored coded by the distance of the move. Is there a straightforward way to do this in Chimera? Thank you, Beth

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how to create using Chimera?
by Paris Tzou 10 Nov '18

10 Nov '18

Dear Sir, I am studying PDB id: 5MCT (p53-dna) complex. There is a "BIOMT TRANSFORMATIONS" required to generate the biological unit. Would you please guide me how to do this? Thanks a lot, Paris

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Re: [Chimera-users] 1up opt
by Elaine Meng 09 Nov '18

09 Nov '18

Hi Zhengzheng The format of your PDB file is not standard because all the H atoms are all at the end instead of with their their residues. Also they are all in a different chain (chain A) than the other atoms (chain B). Whatever program wrote this file wrote it incorrectly. You can easily see all atoms, e.g. commands: ~ribbon display (or use Actions menu to do the same things) but if you use Chimera features requiring chemical knowledge (findhbond etc.) it will not work correctly if the H and the other atoms are not recognized as being in the same residue. I tried editing so that all atoms were chain B, but it did not fix the problem, which is apparently instead caused by placing all the H atoms at the end instead of with their individual residues. You could fix it be removing and re-adding hydrogens in Chimera, but then the H atom positions wouldn’t be exactly the same. Commands: delete H addh It is recommended to send questions to chimera-users(a)cgl.ucsf.edu (CC’ed here) in case I’m not available to answer. Best, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco > On Nov 7, 2018, at 8:02 AM, zheng l <zhengsfriend(a)hotmail.com> wrote: > > Dear Dr. Meng > > I used Chimera software for analyzing many protein crystal structures and then modified them and it has so faithfully doing job for me. However, this structure that I attached below is very difficult to modify. > > The problem is that the hydrogens in structure are hidden. Usually when I need to, for example, replaces a carbon to a nitrogen in a Phe the nitrogen will attached with a hydrogen if I set to have 3 bond for the nitrogen. But this structure is not showing hydrogens at all > > Would you please help me find a way of show all hydrogens need for modifying the protein structure? > > Thank you! > > Best regards! > >> Zhengzheng > > <1tup chain b opt 2.pdb>

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