- Chimera-users - RBVI Mailing Lists

Requesting protocol to find protein configuration units
by Panapakam, Jyotheeswaran 17 Aug '23

17 Aug '23

Dear Officail, This is Jyo writing from UNT biological sciences at Denton, TX, USA. I have been using your software for my research project for about an year. I was looking for a help/instructions about how to find out the configuration change in the protein after docking with a ligand. I have heard about RMSD docking value, that will be given in Amstrong units, could you kindly instruct me the process to perform it. It would be more glad if you are able to answer me withing a week from now : ) Sincerely, Jyotheeswaran Panapakam, PhD Candidate &Teaching Assistant, Department of Biological Sciences, University of North Texas. Jyotheeswaran Panapakam, PhD Candidate &Teaching Assistant, Department of Biological Sciences, University of North Texas.

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Re: [chimerax-users] re error with Movie recorder utility
by Elaine Meng 16 Aug '23

16 Aug '23

Hi Anna, This chimerax-users email address is for questions about ChimeraX, but it sounds like you are using the Chimera program instead, since only Chimera has a Movie Recorder tool. So I am CC-ing the chimera-users email address on this reply, and you do not need to re-send your question. There is no separate "freeware version" -- Chimera is free for academic use and the download is the same for academically or commercially licensed users. (This is also the case for ChimeraX). The Command Line is always for entering one command at a time, i.e. that is the normal situation, not a problem or bug. If you have just a few commands you can enter them as one line with semicolons between them. However, if you mean that you have a script that contains many Chimera commands, you do not enter them one at a time into the command line. Instead you use some text-editing program (outside of Chimera) to create a plain text command file containing those commands, then you open that file using either the Chimera menu File... Open, or the Chimera "open" command. Normally command files are named with the filename extension ".com" or ".cmd" so that Chimera knows what kind of file you are trying to open. See Chimera help pages and tutorials on making movies, namely: Making movies: <https://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/movies.html> Movie Recorder help page (you can just click the Help button on the tool, or see the copy of the same thing at our website here): <https://www.rbvi.ucsf.edu/chimera/docs/ContributedSoftware/recorder/recorde…> Chimera movie-making tutorials: <https://www.rbvi.ucsf.edu/chimera/data/tutorials/movies09/moviemaking.html> <https://www.rbvi.ucsf.edu/chimera/data/tutorials/movies08/moviemaking.html> I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco > On Aug 16, 2023, at 6:31 PM, Anna Lohning via ChimeraX-users <chimerax-users(a)cgl.ucsf.edu> wrote: > > Hi > I have the freeware version installed and trying to make a movie using the Tools/Utilities/Movie recorder window. > At this stage, I seem to only have the command line available for commands one at a time. > Anyway, under the Tools/Utilities, the only options there currently are > Register > Updates > > Be grateful for some clarification as I cant seem to find anyone having this issue. > Many thanks > Kind regards > > Anna > Dr Anna Elizabeth Lohning > Associate Professor - Biochemistry > Faculty of Health Science & Medicine > Bond University > ROBINA 4229 > (07) 5595 4779 > alohning(a)bond.edu.au >

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.msi chimera
by Yanni Goudetsidis (Staff) 11 Aug '23

11 Aug '23

Good morning Is there a .msi installer for chimera I could download, please? Thank you

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making composite map using vop maximum command
by ytakagi＠iu.edu 10 Aug '23

10 Aug '23

Hi I want to make a composite map using two locally refined maps. I tried Phenix but did not work well. So, I like to do it by Chimera. Apparently, a composite map can be made using Chimera's vop maximum command. But I could not find the instruction of how to do it. Can you tell me how to do it? Thanks

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San Jacinto College Security Evaluation
by Melendez, Aaron 09 Aug '23

09 Aug '23

Good afternoon, San Jacinto College, as part of its new application/vendor procurement process, is evaluating the security posture of Chimera and would like to ask for your help in procuring documentation that proves the security controls in place for the company. If you have any Information Security documentation you can share with us, it would be greatly appreciated. If an NDA needs to be signed, we would be happy to provide that to you. Documents that help: * HECVAT (one will be attached that can be filled out) * SJC Vendor Questionnaire (one will be attached that can be filled out) * Information security policies and procedures * Datacenters or Hosting Providers used. * Incident response plan * Disaster recovery plan * Business continuity plan * System and network architecture diagrams * Penetration testing reports * Vulnerability scan reports If you can provide the Data Centers that are used and the Hosting Providers, it will also help our evaluation process. Thank you in advance for your help. Please reach out if you have any questions. Regards, e Aaron C. Melendez Third-Party Risk Analyst The Office of Cybersecurity Cell: (281) 635-2940 (Please call x 2 or Text) San Jacinto Community College 4624 Fairmont Pkwy, Pasadena, TX 77504 Technical Support: Get help at SanJac ITS<https://www.sanjacits.org/> | call (281) 998-6137 www.sanjac.edu<https://www.sanjac.edu/> | www.facebook.com/sanjacintocollege<http://www.facebook.com/sanjacintocollege> | @SanJacCollege [2z5cr1lnO9iMtMLfMHSAYwzcMySsBwfq8SYpRxc6xBeRPF2c+m+YTgIc8IdrhL4f1IjMkJpGrM5AAAAAElFTkSuQmCC] “Under pressure, you don’t rise to the occasion, you sink to the level of your training.”

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Secondary structure editing of molecules
by GABRIELLE LUPETI DE CENA 08 Aug '23

08 Aug '23

Good morning! I have doubts about how to turn the peptide structures of the four images below (A), (B), (C), and (D) into a cartoon model like figure (E). I've tried, but I'm not succeeding. Thank you very much. -- ---- É obrigatória a utilização do e-mail @unifesp em todas as correspondências oficiais, institucionais e no acesso aos equipamentos e sistemas da Universidade Federal de São Paulo, conforme a portaria Reitoria n. 1182/2022 <https://sti.unifesp.br/documentos/termos-de-uso-do-email> que define a Política de e-mail institucional da Unifesp. <https://sei.unifesp.br/sei/publicacoes/controlador_publicacoes.php?acao=pub…>

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Saving phi psi values to a text file
by Prathvi Singh 06 Aug '23

06 Aug '23

Hi Elaine, Is there a command to save the phi and psi angle values of each residue of a PDB file in a text file using UCSF chimera? I know we can do this in chimeraX using the command: save C:\myphi.defattr attrName phi format defattr model #1 Also, can we use chimeraX to save the phi and psi values in a single file? Thanks in advance -- Prathvi Singh, Research Fellow, Department of Biological Sciences & Bioengineering, Indian Institute of Technology, Kanpur-208016

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Query regarding selection
by Prathvi Singh 04 Aug '23

04 Aug '23

Hi Elaine, I want to select all the atoms except the backbone oxygen and nitrogen atom of residues 100.A to 120.A . Is there a command to do this in either chimera or chimeraX? -- Prathvi Singh, Research Fellow, Department of Biological Sciences & Bioengineering, Indian Institute of Technology, Kanpur-208016

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Re: [EXTERNAL] Chimera-users Digest, Vol 243, Issue 22
by Reza Khayat 01 Aug '23

01 Aug '23

Hi Elaine, Thanks for the help. This will speed things up quite a bit. Best wishes, Reza Reza Khayat, PhD Associate Professor City College of New York Department of Chemistry and Biochemistry New York, NY 10031 ________________________________________ From: chimera-users-request(a)cgl.ucsf.edu <chimera-users-request(a)cgl.ucsf.edu> Sent: Tuesday, August 1, 2023 3:00 PM To: chimera-users(a)cgl.ucsf.edu Subject: [EXTERNAL] Chimera-users Digest, Vol 243, Issue 22 Send Chimera-users mailing list submissions to chimera-users(a)cgl.ucsf.edu To subscribe or unsubscribe via email, send a message with subject or body 'help' to chimera-users-request(a)cgl.ucsf.edu You can reach the person managing the list at chimera-users-owner(a)cgl.ucsf.edu When replying, please edit your Subject line so it is more specific than "Re: Contents of Chimera-users digest..." Today's Topics: 1. Measure rotation without writing PDB (Reza Khayat) 2. Re: Measure rotation without writing PDB (Elaine Meng) ---------------------------------------------------------------------- Message: 1 Date: Tue, 1 Aug 2023 18:23:19 +0000 From: Reza Khayat <rkhayat(a)ccny.cuny.edu> Subject: [Chimera-users] Measure rotation without writing PDB To: "chimera-users(a)cgl.ucsf.edu" <chimera-users(a)cgl.ucsf.edu> Message-ID: <1690914198332.72284(a)ccny.cuny.edu> Content-Type: multipart/alternative; boundary="_000_169091419833272284ccnycunyedu_" Hi, I'm trying to measure the movement of a domain between two structures of the same protein. Here are the conditions: 1. There are two domains in each structure 2. I want to overlay the first domain and measure the rotation of the second domain 3. There are lots of structures, so I want to minimise the number of steps 4. I'd like to do this with a script and the --no_gui option on headless Chimera Here is my current script for the routine: open pdb1 open pdb2 match #1:1-50 #0:1-50 write format pdb relative #1 #0 t.pdb delete #1 open t.pdb match #1:55-80 #0:55-80 measure rotation #1 #0 delete #1 open pdb3 ... Is it possible to not have to write, delete, and open #1 after the first match step? If I don't do this, then the measure rotation #1 #0 will measure rotation of the initial match rather than the second match. Thanks for the help. Best wishes, Reza Reza Khayat, PhD Associate Professor City College of New York Department of Chemistry and Biochemistry New York, NY 10031

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Measure rotation without writing PDB
by Reza Khayat 01 Aug '23

01 Aug '23

Hi, I'm trying to measure the movement of a domain between two structures of the same protein. Here are the conditions: 1. There are two domains in each structure 2. I want to overlay the first domain and measure the rotation of the second domain 3. There are lots of structures, so I want to minimise the number of steps 4. I'd like to do this with a script and the --no_gui option on headless Chimera Here is my current script for the routine: open pdb1 open pdb2 match #1:1-50 #0:1-50 write format pdb relative #1 #0 t.pdb delete #1 open t.pdb match #1:55-80 #0:55-80 measure rotation #1 #0 delete #1 open pdb3 ... Is it possible to not have to write, delete, and open #1 after the first match step? If I don't do this, then the measure rotation #1 #0 will measure rotation of the initial match rather than the second match. Thanks for the help. Best wishes, Reza Reza Khayat, PhD Associate Professor City College of New York Department of Chemistry and Biochemistry New York, NY 10031

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Silent install?
by Jim Richard 27 Jul '23

27 Jul '23

Hello, We are using MECM (SCCM) to install Chimera and need to suppress ALL windows. I have tried the /verysilent flag but a command prompt still pops up with what looks to be the compiling portion. Is there a way to have ALL windows silent? -- *Jim Richard* Pronouns: he/him/his Client Systems Administrator

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Saving Animations on Mac OS
by Natalie Walsh 25 Jul '23

25 Jul '23

Hello, I am having troubles saving my animations on my Mac OS. I get this error when I record and save my animation: An error occurred during encoding. See Reply Log for details. Error during MPEG encoding: ----------------------------- Exit value: -1 Error message: Could not find ffmpeg executable —————————————— I googled some solutions regarding “ffmpeg” and I believe I successfully installed it to my terminal, but I am still receiving the same error. Thank you, Natalie Walsh

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Unable to dock
by Panapakam, Jyotheeswaran 20 Jul '23

20 Jul '23

[cid:9962344b-5095-47ba-a1c2-1c6fef113ef2] Dear Official, I was unable to move the green grid, thus, I am unable to dock a compound on the protein target. Could you please help me with this? Jyotheeswaran Panapakam, PhD Candidate &Teaching Assistant, Department of Biological Sciences, University of North Texas.

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How do I colour all my hydrogen atoms grey?
by Mazin Nasralla 17 Jul '23

17 Jul '23

Hello, I imported an x,y,z model of water molecules into Chimera. I want to create an image of my water structure so I am setting the background to grey. That works. But I would prefer to set the hydrogen atom colour to light grey. I can't work out how to do that. I can select each individual atom, and then colour edit it but that will take ages. Is there a simple command line solution? Thanks Mazin

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hiding a model slowly
by Sen, Anindito 14 Jul '23

14 Jul '23

Dear Chimera X team, Is there a way I can hide one of the models in a ChimeraX session slowly (like fading it off) while making a movie. typically I use hide #7 model Stay safe & Regards Anindito Sen. Ph.D Microscopy and Imaging Center Texas A&M University 301 Old Main Dr College Station, TX 77843-2257 Office: ILSB Room 1133 <http://microscopy.tamu.edu/>Tel. 979-458-9881 fax: 979-847-8933 http://microscopy.tamu.edu<http://microscopy.tamu.edu/>

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Chimera-X inteprhase of the AlphaFold
by Enrico Martinez 13 Jul '23

13 Jul '23

Dear Chimera-X users! In parallel to the modeller, I am trying to use the Alpha fold interface with the aim to full model starting from the sequence using template. The problem is that I can not define manually which template I would like to use for each prediction so the interphase takes its automatically based on the input sequence and the final prediction is not very precise. Would it be possible rather to specify a specific pdb ID additionally to a given sequence ? Many thanks in advance Enrico

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Modeler interphase in Chimera
by Enrico Martinez 13 Jul '23

13 Jul '23

Dear Chimera Users! I would like to try MODELLER interphase implemented in the Chimera for prediction of the segments missed in input PDB structure having as the input: the pdb structure with missed N and C terminal fragments (everything in one chain), as well as the full sequence of the protein in FASTA. Could you please provide me with a link to the tutorial (or just explain a very basic workflow here .. ), which simply explains how I could predict the model based on the data and save the predicted solutions in pdb format ? Many thanks in advance Cheers Enrico

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Remove me from mailing list
by Saima Sam 10 Jul '23

10 Jul '23

Hi, I am no longer a user of Chimera so please opt me out of these emails. I would truly appreciate it.

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Placing of a hame-ion centre into an AlfaFold structure
by George Tzotzos 10 Jul '23

10 Jul '23

I’d be grateful for any suggestions regarding the following problem/question. Problem Placing of the haem-iron centre in mosquito P450 structure(s) obtained by means of AlfaFold. This is required for follow up docking simulations. There no insect P450 structures deposited in PDB. However, there are numerous mammalian P450 crystal structures some of which are homologous to the mosquito structures I’m dealing with. A distinctive feature of these structures is a haem-iron centre tethered to the protein via a cysteine thiolate ligand. Six regions have been designated as substrate recognition sites (SRS 1-6) based on comparative sequence analysis methods. These SRS are conserved and are thought to participate in the formation of the substrate access channel, and form part of the catalytic site surrounding the haem iron center. My initial approach would be to use Chimera to align the AlfaFold structure against its mammalian homologue PDB structure and assume that the haem-iron centre would be located in the same place. Is there a better way to achieve the same objective?. Your help will be greatly appreciated. Best regards George

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Chimera?
by Emma 05 Jul '23

05 Jul '23

Chimera, this is me again

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Opening MTZ files on Mac OS
by Natalie Walsh 03 Jul '23

03 Jul '23

Hello, I am having troubles opening MTZ maps from PDB on ChimeraX 17.1. on Mac OS. I read somewhere that you need to download the Clipper plug-in. I went ahead and installed that (although I am not sure that I was successful) and am still struggling to open these files. Thank you, Natalie Walsh

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Removing lonbond links from pipes-and-planks representation
by philip.robinson＠bbk.ac.uk 02 Jul '23

02 Jul '23

Hi, I'm trying to generate a pipes-and-planks representation of an atomic model that contains gaps. Before generating the pipes-and-planks representation I hid the long bonds to remove the links in the gap regions. However, the gaps are connected again in the pipes-and-planks representation and I cannot find the command to hide them. Any help would be appreciated. Phil

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ChimeraX Question
by Bani Kaur 30 Jun '23

30 Jun '23

Hi, I hope you are doing well! My name is Bani Kaur and I am an active user of ChimeraX for a research project concerning protein modeling, specifically with the CFTR protein. I have been running into issues with showing atoms on my residue, specifically after I change the romater. I am not sure what to do about this as I have downloaded the latest version of ChimeraX. Additionally, I am not able to see clashes for some very reason and am only able to see it when limit by selection is unchecked, but for my research project, we require that it is checked in the clashes settings. Thank you so much for your help! Best, Bani Kaur

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Questions regarding reply log
by Prathvi Singh 28 Jun '23

28 Jun '23

Hi Elaine, Is there a way to clear the Reply Log using the command line? Is there a way to write the contents of the Reply log to a text file? -- Prathvi Singh, Research Fellow, Department of Biological Sciences & Bioengineering, Indian Institute of Technology, Kanpur-208016

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Supoort for automating superimposition process of multiple pairs of structures using command line
by Vaibhav Anand 27 Jun '23

27 Jun '23

Hello Chimera team, I am seeking your assistance in automating the process of superimposing multiple pairs of structures using the command line. I've performed the MD simulation of the UBA domain (PDB ID - 1OQY), and for analyzing the structural changes, I've extracted the 11 structures from the trajectory at 500ns to 1000ns with steps of 50ns. In total, I've 12 structures [1 reference structure (em.gro - energy minimized structure) and 11 extracted structures]. Now I want to superimpose each extracted structure w.r.t. em.gro and save the image of superimposition with the image name to be (time + rmsd_value). For the RMSD value, I'll have to save the reply log file (or the last 10-15 lines of the reply log) and then copy the rmsd value and save my image file with it. Could you please give me an outline or references on how I can do this task? Thank you for your attention Regards, Vaibhav

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