- ChimeraX-users - RBVI Mailing Lists

Displaying angles in chimera
by Prathvi Singh 16 May '24

16 May '24

Hi Elaine, Is it possible in chimera/chimeraX to display angles between two covalent bonds like in pymol? -- Prathvi Singh, Research Fellow, Department of Biological Sciences & Bioengineering, Indian Institute of Technology, Kanpur-208016

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"H-Bonds" Tool Displays Non-H Bond Bonds?
by Melisa Kalaba 15 May '24

15 May '24

Hello. I wanted to display the hydrogen bonds between my ligand and protein, however when I hovered over the displayed bonds with my cursor I noticed one of the bonds being between two nitrogen atoms and I was confused. Is this a bug within the software? I'll attach a screenhot so you can take a look at it yourself: https://drive.google.com/file/d/1N5YRncOrrJnEVRpM8XD7O1tPG02ZTu8G/view?usp=…

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Missing-structure labels
by Eric Pettersen 15 May '24

15 May '24

Hi all, In the 1.9 daily build only (not the 1.8 release candidate), missing-structure pseudobonds are now labeled with the number of residues the pseudobond represents. If you do not like this new behavior, you can turn it off in the 'Labels' preference category (make sure to 'Save' your changed setting). --Eric Eric Pettersen UCSF Computer Graphics Lab

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Alphafold3 models
by Allen Place 15 May '24

15 May '24

I just ran Alphafold3 predictions on our dinoflagellate pks proteins. Will chimerax read the models which are .cif files? I want to highlight the various domains in the 3D models. I am running on OSx. Al Allen R. Place(he/him/his) Professor, Associate Director of Research, Director of BASLab, Director of HAB-CTI Institute of Marine and Environmental Technology University of Maryland Center for Environmental Sciences The Rita Rossi Colwell Center 701 East Pratt Street Baltimore, MD 21202 410-234-8828 place(a)umces.edu ALAN, ALLAN, ALLEN From the Gaelic word for “cheerful” He is smart, makes friends easily, and never loses his sense of humour. He thrives on a challenge Sign up to receive our quarterly newsletter, Inside IMET!

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Cofr command output in log
by Kumpula, Esa-Pekka 14 May '24

14 May '24

Dear ChimeraX crew, A minor quality-of-life improvement request: would it be possible to have the command cofr output the values as a comma-separated list instead of a whitespace separated one? I am including cofr information reatively often in my figure preparation scripts and having NOT to always replace these when copy&pasting would be a nice improvement! Also, in general, can I customize the output of commands to the log (such as view matrix, cofr, zoom, clip list) within an alias for example? In a fluffy dream world, I would have an output from these that I can directly copy&paste to my scripts and get the camera positioned Just Right. Cheers, EP -- Esa-Pekka Kumpula, PhD Senior Postdoctoral Researcher Laboratory of Structural Biology Institute of Biotechnology Helsinki Institute of Life Science HiLIFE University of Helsinki www.helsinki.fi/lsb<http://www.helsinki.fi/lsb>

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Feature request for .glb files
by Leonardo BETANCURT ANZOLA 14 May '24

14 May '24

Hello! I am currently exporting .glb files so I can add them to a Keynote presentation and would like to keep the labels for the amino acids. When I see the file, the letters are in 2d, do you know if there is a way to add a little bit of depth to the letters when exporting such a file? I added a video that shows how the labels are invisible from some points of view Also, it would be awesome if files could be exported in .usdz so they can be easily added to Keynote Thank you, Leo B

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Fwd: Inquiries on UCFS Chimerax
by Tom Goddard 14 May '24

14 May '24

Please send ChimeraX questions to the mailing list unless they contain private data. Begin forwarded message: From: ahmed morsy Subject: Inquiries on UCFS Chimerax Date: May 7, 2024 at 4:52:22 AM PDT To: "goddard(a)cgl.ucsf.edu" Reply-To: ahmed morsy Dear Dr. Thomas Goddard, I hope this message finds you well. I am very thankful for your great tutorial on the UCFS Chimerax YouTube channel. I have a few questions that need your kind response: 1- Can we apply UCFS Chimerax for detecting the interaction between protein & ligand, or small molecule (from Pubchem library) and protein? 2- What is your standard for increasing or decreasing C-alpha distance (in Angestrom) to color the structure that is different between the Alphafold prediction and the experimental one? Thank you for reading my message, and I look forward to hearing from you. Best regards, Ahmed Morsy ========================= Ahmed Morsy, Ph.D. Assistant Professor, Department of Stem Cell & Regenerative Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea Tel.: 02-450-0498 C.P.: +82/10-5299-5844 E-mail: ahmed_morsy86(a)yahoo.com; ahmed(a)konkuk.ac.kr Orcid id: https://orcid.org/0000-0003-3873-9903 Scopus id: 55258308400 (https://www.scopus.com/authid/detail.uri?authorId=55258308400) Researchgate: https://www.researchgate.net/profile/Ahmed-Abdal-Dayem GoogleScholar: https://scholar.google.co.kr/citations?user=NevFBgMAAAAJ&hl=en

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Re: Protein-ligand interactions
by Guillaume Gaullier 14 May '24

14 May '24

Hello Ahmed, I am not aware of any formal standard for figures, at least in my field, beyond the specific technical requirements of different journals (certain preferred image formats with a certain minimal resolution in DPI, etc.). In practice, the reviewers will complain if they find the figures confusing. So the best you can do initially is to use your judgment as to whether the figures show what you want to communicate. It is often very enlightening to run the figures past colleagues who were not involved in the project and see what their first reaction is (do they immediately get what you are trying to show? do they get confused? can they suggest ways to clarify the figures?). Then once you get feedback from reviewers, what needs to be changed typically becomes clear. Regarding aesthetics, pretty much anything goes as long as it doesn’t confuse the message the figure is meant to communicate. In certain fields, there are conventional color codes that have been in use for a long time, and it often facilitates communication with this research community to follow their conventions (even though nobody can force you to do it; a reviewer could suggest it but I believe it would be wrong for them to make it a strict requirement). But this is never advertised anywhere, you need to find out by reading the literature of this specific field. It is always good if figures are reproducible, and I like using ChimeraX’s command scripts for that (see some examples from my own work here: https://github.com/Guillawme/chimerax-viz ). I hope this helps, Guillaume On 11 May 2024, at 16:17, ahmed morsy via ChimeraX-users <chimerax-users(a)cgl.ucsf.edu<mailto:chimerax-users@cgl.ucsf.edu>> wrote: VARNING: Klicka inte på länkar och öppna inte bilagor om du inte känner igen avsändaren och vet att innehållet är säkert. CAUTION: Do not click on links or open attachments unless you recognise the sender and know the content is safe. Dear Dr. Meng, I hope this message finds you well. I am writing to you as we are planning to utilize ChimeraX for structural analysis in our upcoming research projects. As we prepare to integrate ChimeraX into our workflow, we are particularly keen to ensure that our approach and the resulting figures are in line with scientific standards and will be well-received by the academic community. To this end, we would greatly appreciate if you could provide us with any references or examples of published research where ChimeraX has been used for similar purposes. Specifically, we are looking for insights into how figures generated using ChimeraX have been formatted and validated in peer-reviewed publications. We aim to adhere closely to best practices and ensure that our use of ChimeraX enhances the credibility and scientific rigor of our findings. Any guidance, examples, or recommendations you could share would be immensely helpful. Thank you for your time and support. We look forward to your response and any assistance you can provide. Best regards, Ahmed Morsy On Wednesday, May 8, 2024 at 03:31:21 AM GMT+9, Elaine Meng <meng(a)cgl.ucsf.edu<mailto:meng@cgl.ucsf.edu>> wrote: Dear Ahmed Morsy, (1) Depends what you mean by "detecting" ... if you mean will it dock the ligand with the protein to predict where/how it binds, the answer is no. If you mean you already have a structure of a ligand-protein complex (such as from experimentally determined structures or the output of some other protein-ligand docking program), then the answer is yes, you can use ChimeraX to analyze the interactions. For examples of what you could do, see the "protein-ligand binding sites" tutorial: <https://www.rbvi.ucsf.edu/chimerax/docs/user/tutorials/binding-sites.html> See also the ViewDockX tool for looking at results output from other programs that do protein-ligand docking: <https://www.rbvi.ucsf.edu/chimerax/docs/user/tools/viewdockx.html> (2) there is no standard. You have to use your own scientific (and for a paper figure, artistic) judgment, based on what you are trying to show and the details of the proteins you are interested in. I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Resource for Biocomputing, Visualization, and Informatics Department of Pharmaceutical Chemistry University of California, San Francisco > On May 7, 2024, at 10:45 AM, Tom Goddard via ChimeraX-users <chimerax-users(a)cgl.ucsf.edu<mailto:chimerax-users@cgl.ucsf.edu>> wrote: > > Please send ChimeraX questions to the mailing list unless they contain private data. > > Begin forwarded message: > > From: ahmed morsy > Subject: Inquiries on UCFS Chimerax > Date: May 7, 2024 at 4:52:22 AM PDT > To: "goddard(a)cgl.ucsf.edu<mailto:goddard@cgl.ucsf.edu>" > Reply-To: ahmed morsy > > Dear Dr. Thomas Goddard, > > I hope this message finds you well. > I am very thankful for your great tutorial on the UCFS Chimerax YouTube channel. > > I have a few questions that need your kind response: > > 1- Can we apply UCFS Chimerax for detecting the interaction between protein & ligand, or small molecule (from Pubchem library) and protein? > 2- What is your standard for increasing or decreasing C-alpha distance (in Angestrom) to color the structure that is different between the Alphafold prediction and the experimental one? > > > Thank you for reading my message, and I look forward to hearing from you. > > Best regards, > Ahmed Morsy > ========================= > Ahmed Morsy, Ph.D. > > Assistant Professor, > Department of Stem Cell & Regenerative Biotechnology, > Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea > Tel.: 02-450-0498 > C.P.: +82/10-5299-5844 > E-mail: ahmed_morsy86(a)yahoo.com<mailto:ahmed_morsy86@yahoo.com>; ahmed(a)konkuk.ac.kr<mailto:ahmed@konkuk.ac.kr> > Orcid id: https://orcid.org/0000-0003-3873-9903 > Scopus id: 55258308400 (https://www.scopus.com/authid/detail.uri?authorId=55258308400) > Researchgate: https://www.researchgate.net/profile/Ahmed-Abdal-Dayem > GoogleScholar: https://scholar.google.co.kr/citations?user=NevFBgMAAAAJ&hl=en > _______________________________________________ ChimeraX-users mailing list -- chimerax-users(a)cgl.ucsf.edu<mailto:chimerax-users@cgl.ucsf.edu> To unsubscribe send an email to chimerax-users-leave(a)cgl.ucsf.edu<mailto:chimerax-users-leave@cgl.ucsf.edu> Archives: https://mail.cgl.ucsf.edu/mailman/archives/list/chimerax-users@cgl.ucsf.edu/ När du har kontakt med oss på Uppsala universitet med e-post så innebär det att vi behandlar dina personuppgifter. För att läsa mer om hur vi gör det kan du läsa här: http://www.uu.se/om-uu/dataskydd-personuppgifter/ E-mailing Uppsala University means that we will process your personal data. For more information on how this is performed, please read here: http://www.uu.se/en/about-uu/data-protection-policy

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Questions about ChimeraX
by Joshua Hori 13 May '24

13 May '24

Hello ChimeraX, I wanted to reach out and inquire about the ChimeraX tool. I see that it has the ability to save in multiple different formats, but I have a question about conversion into alternative formats. I found details about this tool looking for a PDB to STL file conversion and came across this page: https://www.cgl.ucsf.edu/chimerax/ and looking at the filetypes you interact with listed on this page: https://www.cgl.ucsf.edu/chimerax/docs/user/commands/save.html I see that it works with PDB files, which are used for modeling in some VR and AR environments such as Calcflow and Nanome. Would ChimeraX have the ability to import PDB files and export them as STL files for 3D printing? I ask this as I research ways to make AR and VR more accessible to classrooms. Sincerely, Joshua Hori Accessible Technology Coordinator Information Educational Technology Academic Technology Services 50 Hutchison Dr. Davis, CA 95616 530-752-2439 Schedule a meeting via Calendly<https://calendly.com/d/ytt-hsj-vbn>

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Re: Alphafold 3
by Tom Goddard 13 May '24

13 May '24

Oliver Clarke points out that VP of research at DeepMind, Pushmeet Kohli, says they hope to release AlphaFold 3 code in 6 months. "We love the excitement & results from the community on AlphaFold 3 and are doubling the AF Server daily job limit to 20. Happy to also share that we're working on releasing the AF3 model (incl weights) for academic use, which doesn’t depend on our research infra, within 6 months. Pushmeet Kohli. 11:27 AM · May 13, 2024" https://x.com/pushmeet/status/1790086453520691657 If that happens we will try to add ChimeraX support for running AlphaFold 3 predictions. Tom > On May 13, 2024, at 1:42 PM, Oliver Clarke <olibclarke(a)gmail.com> wrote: > > Hi Tom, hope all is well! It seems like this stance might change (maybe because of all the pushback from the community?): > > https://x.com/pushmeet/status/1790086453520691657 > > So maybe it will be possible by the end of the year... > > Cheers > Oli > >> On May 13, 2024, at 4:23 PM, Tom Goddard via ChimeraX-users <chimerax-users(a)cgl.ucsf.edu> wrote: >> >> Hi Sohail, >> >> Google did not released the code for AlphaFold 3 so the only way to run it is from their web page. They also have not provide a web service that would allow programs like ChimeraX to submit prediction jobs. I asked a contact at Google DeepMind if they plan in the future to provide a web service or provide the code, and they said they have no plans to do so at this time. Details here >> >> https://www.rbvi.ucsf.edu/trac/ChimeraX/ticket/15135 >> >> Google also is not allowing researchers to run predictions with small molecule ligands except for some very common ones like ATP. It appears Google is treating AlphaFold 3 as a commercial product so the most useful capabilities will only be accessible to the drug discovery company Google has formed called Isomorphic Labs. >> >> I will be making the ChimeraX display of predicted aligned error (PAE) work with AlphaFold 3 output. Currently it is broken because AlphaFold 3 now has predicted aligned error for individual atoms of ligands, ions, glycosylation and non-standard residues while AlphaFold 2 only had values for residues of proteins. I expect to put this fix in ChimeraX today or tomorrow and it will be in the ChimeraX daily builds and ChimeraX 1.8 release candidates. >> >> Tom >> >> >> >> >>> On May 11, 2024, at 6:18 AM, Khawar Siddiqui via ChimeraX-users <chimerax-users(a)cgl.ucsf.edu> wrote: >>> >>> Hi, >>> Greetings! When ChimeraX will get Alphafold 3? >>> >>> Thanks and best wishes >>> >>> Dr K Sohail Siddiqui, >>> School of Biotechnology and Biomolecular Sciences (BABS), >>> Room 420, Building D26, >>> The University of New South Wales (UNSW), >>> Randwick, High Street, Sydney, Australia. NSW 2052 >>> Office: +61 2 938 55193 <tel:+61 2 938 55193> >>> email: z3030204(a)ad.unsw.edu.au; sohailsiddiqui1995(a)yahoo.com >>> _______________________________________________ >>> ChimeraX-users mailing list -- chimerax-users(a)cgl.ucsf.edu >>> To unsubscribe send an email to chimerax-users-leave(a)cgl.ucsf.edu >>> Archives: https://mail.cgl.ucsf.edu/mailman/archives/list/chimerax-users@cgl.ucsf.edu/ >> >> _______________________________________________ >> ChimeraX-users mailing list -- chimerax-users(a)cgl.ucsf.edu >> To unsubscribe send an email to chimerax-users-leave(a)cgl.ucsf.edu >> Archives: https://mail.cgl.ucsf.edu/mailman/archives/list/chimerax-users@cgl.ucsf.edu/ >

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Alphafold 3
by Khawar Siddiqui 13 May '24

13 May '24

Hi, Greetings! When ChimeraX will get Alphafold 3? Thanks and best wishes Dr K Sohail Siddiqui, School of Biotechnology and Biomolecular Sciences (BABS), Room 420, Building D26, The University of New South Wales (UNSW), Randwick, High Street, Sydney, Australia. NSW 2052 Office: +61 2 938 55193<tel:+61%202%20938%2055193> email: z3030204(a)ad.unsw.edu.au; sohailsiddiqui1995(a)yahoo.com

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Preparing molecular structures for panel of figures
by Prathvi Singh 10 May '24

10 May '24

Hi Elaine, I want to create a panel containing 4 figures. Each figure in the panel will be a ball and sticks representation of an amino acid residue. I have tried using the "Tile Structures" feature in UCSF chimera to create the panel. Although it does ease the job a lot, I find it difficult in aligning residue labels or 2D labels. Is there a grid based feature which can display a grid on the chimera workspace so that I can use its lines as a guide to better align my labels? Thanks in advance Prathvi, Research Fellow, Department of Biological Sciences & Bioengineering, Indian Institute of Technology, Kanpur-208016

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How can I modify the palette of alphafold?
by Xiaohua Hu 09 May '24

09 May '24

I run command "color bfactor #1 palette alphafold", but I think the color is not so good. How can I modify or redefine the palette alphafold?

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ChimeraX / Alphafold docking question: Heterodimer and ligand
by Anthony Newcombe 08 May '24

08 May '24

Hello I'm currently evaluating ChimeraX for non-commercial use. I'm interested in predicting a complex of an unknown ligand to a heterodimer (receptor) with a known structure, pdb file available. The help files mention: *For predicting a complex (multimer), the sequences of all chains in the complex must be given. The same sequence must be given multiple times if it occurs in multiple copies in the complex. The sequences can be specified either collectively as a model number chosen from the menu of currently open models (e.g. when that model contains multiple chains)* If I download the structure of the heterodimer first, does this mean I can then select this then add the primary sequence of the ligand to try to dock? If not, can I add all the primary sequences and tick 'use PDB templates when predicting structures'? Would this then use the known experimental structure of the receptor? I hope this makes sense and thanks for the help Best wishes Tony Anthony Newcombe Ballinascarthy Clonakilty Cork Ireland

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Fwd: registration issue
by Elaine Meng 08 May '24

08 May '24

Hi Stephen, For questions that don't relate directly to commercial licensing, please use chimerax-users(a)cgl.ucsf.edu <mailto:chimerax-users@cgl.ucsf.edu> (already CC'd here so you don't need to do it) or chimerax-bugs(a)cgl.ucsf.edu <mailto:chimerax-bugs@cgl.ucsf.edu> .... I don't know the answer to your question but the people on those lists would be your best bet. See the "contact us" page: <https://rbvi.ucsf.edu/chimerax/docs/contact.html <https://rbvi.ucsf.edu/chimerax/docs/contact.html>> If I had to guess, I would say that our server was temporarily down and that as soon as it is up (which may actually be the case), your registration attempt will "take" and you won't be prompted again in the near future. As the dialog says, please try again, although I know it's annoying if the server is still down. Maybe somebody on our team can respond as to whether it is up now? In the meanwhile, very sorry for the inconvenience and wasted time filling out the form. Best regards, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Resource for Biocomputing, Visualization, and Informatics Department of Pharmaceutical Chemistry University of California, San Francisco > From: Stephen Miller <miller.stephen(a)gene.com <mailto:miller.stephen@gene.com>> > Sent: Monday, May 6, 2024 3:14 PM > Subject: registration issue > > Hello, I use a ChimeraX license through Genentech, and recently had to swap out my computer due to an issue and had to reinstall the program. I've been getting a notification to register but when I submit the information it says the registration > ZjQcmQRYFpfptBannerStart > This Message Is From an External Sender > This message came from outside your organization. > ZjQcmQRYFpfptBannerEnd > Hello, > > I use a ChimeraX license through Genentech, and recently had to swap out my computer due to an issue and had to reinstall the program. I've been getting a notification to register but when I submit the information it says the registration server is unavailable, and then the notification pops up the next time I launch the program. > > Is there something I can do to get this done properly? Thank you for any help! > -Steve > >

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Re: [Chimera-users] Chimera scripting
by Elaine Meng 07 May '24

07 May '24

Hi Flip, If you save a PDB file from ChimeraX it will save the current helix and strand assignments of the protein and peptide residues (as HELIX and SHEET records). I'm not sure if that is what you were saying is missing, or how you determined that they were missing. It does not save, however, helix type or which sheets the strands belong to. Elaine > On May 7, 2024, at 11:29 AM, Flip Jansen <f.bastiaanjansen(a)gmail.com> wrote: > > Hi Elaine, > > Thank you that is very clear! > > As for the second point, I meant preserving secondary structure information when saving an adapted PDB file in Chimera. I am now planning on using PyMOL for this purpose. > > Thanks again for your help! > > Best, > Flip > > On Mon, May 6, 2024 at 11:56 AM Elaine Meng <meng(a)cgl.ucsf.edu> wrote: > Hello Flip, > (1) we would generally recommend using ChimeraX over Chimera for many reasons: performance, enhanced features, current development and support. The rest of this answer applies to ChimeraX so I'm putting it on the chimerax-users list. > > (2) you can create a blank cubic grid first with "volume new" and then refer to that in the "molmap" command "onGrid" option. > <https://rbvi.ucsf.edu/chimerax/docs/user/commands/volume.html#new> > <https://rbvi.ucsf.edu/chimerax/docs/user/commands/molmap.html> > > (3) I do not understand what you mean by losing secondary structure information when saving a map. Only atomic structures (not maps) have secondary structure information, i.e. helix and strand assignments. Can you clarify? > > I hope this helps, > Elaine > ----- > Elaine C. Meng, Ph.D. > UCSF Chimera(X) team > Department of Pharmaceutical Chemistry > University of California, San Francisco > > > On May 6, 2024, at 10:40 AM, Flip Jansen via Chimera-users <chimera-users(a)cgl.ucsf.edu> wrote: > > > > Hello Chimera dev team, > > > > I am a junior specialist from across the hall working at the Fraser Lab and I have some questions about using chimera scripting for omitting densities and generating reference maps. > > > > One of the issues I have been having has been that using the molMap function in Chimera generates a non-cubic output and I am aware that I can use onGrid with a pre-existing map with the desired dimensions. However, in the workflow, I am setting up I do not yet have a reference map and I am in most scenarios starting with just a PDB or an adapted from PDB map. > > > > Is there a way to let Chimera(X) generate a cubic output map from PDB without requiring another map from an external program like cryoSPARC? > > > > Another question I have is regarding the loss of secondary structural information when saving a map in Chimera. Is there a way to save a map while maintaining that information? > > > > Any help is highly appreciated, I would also be happy to come by an talk in person. > > > > Best, > > Flip Jansen >

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Guidance on aligning models with overlapping aa subsequences
by Martin Gordon 07 May '24

07 May '24

Hi everyone, I'm hoping to get some assistance from the community for visualizing structures from multiple AF runs with overlapping subsequences. We have been using AlphaFold monomer to try to identify structure and domains of a large (+3000aa) human protein. Our AF runs fail to model the full structure (possibly insufficient resources), so we have tried 'breaking' up the protein into overlapping subsequences. I was wondering if there is a sensible way to combine these substructures based on their overlapping regions? I have tried matchmaker, which I believe constructs a MSA and attempts to align the structures, but it seems a significant region of the overlap is not aligning correctly (img below with the overlapping subsequences highlighted). Any guidance is greatly appreciated. Thank you, Martin [image: image.png] Thank you, Martin

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Inquiry on the vertex_convexity function
by Yoseph Loyd 07 May '24

07 May '24

Hi ChimeraX Team, My name is Yoseph, I'm a student. I saw that your measure convexity function 'vertex_convexity' is documented to report the vertex convexity from ' 2pi - half cone angle of the incident vertex and all triangles the incident vertex is a part of'. Is the half cone angle generated by averaging all half cone angles? Thank you for taking the time to read this and I hope your day goes well. Best regards, Yoseph Loyd

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Making movie of whole cell model with EM images
by George Schaible 07 May '24

07 May '24

Hello, My name is George Schaible and I am a post doc at Montana State University. I would like to use ChimeraX to make my movies of whole cell serial block face EM data I have modeled in IMOD/3dmod and I was wondering if someone could point me towards a tutorial or some way that I can make the movie using both the model and the original EM data. Any information is helpful and thank you! -- George A. Schaible, Ph.D Dept. of Chemistry & Biochemistry Montana State University Google Scholar profile <https://scholar.google.com/citations?user=_M2xvYIAAAAJ&hl=en>

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No version number in Add- Remove Program (Windows)
by Gruhm, Sebastian 07 May '24

07 May '24

Hello, I manage the software distribution at the Frei Universität Berlin, and I noticed that after installing ChimeraX 1.7.1, the entry in "Add-Remove Programs" (ARP) does not include a version number (see attached Screenshot). This is problematic because I cannot create a query for the version number in the software distribution (SCCM). All that would need to be done to display the version number under ARP is to create the RegKey "DisplayVersion" under "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\UCSF ChimeraX_is1". Would be great to see this implemented in the next version of ChimeraX. Mit freundlichem Gruß Sebastian Gruhm [cid:image001.jpg@01DAA061.0DA8A940] Zentraleinrichtung für Datenverarbeitung Server Infrastructure (SI) Fabeckstraße 32, 14195 Berlin Raum: 110 Phone: +49 30 838 58668 sebastian.gruhm(a)fu-berlin.de

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Adjust the Rotation Axis Size in ChimeraX
by AARON FERRELL 07 May '24

07 May '24

Hello, Is there a way to adjust the size of the rotation axis generated by the command line "measure rotation #2 toModel #1, in ChimeraX? I am looking to adjust both the length and diameter of the axis display. Please let me know! Best, Aaron

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Issue with Recurring Update Notifications in ChimeraX
by ahmed morsy 07 May '24

07 May '24

Dear ChimeraX Support Team, I hope this message finds you well. I am writing to ask for help with an ongoing issue I've been having with ChimeraX. Despite having downloaded and installed the most recent version of ChimeraX, I continually receive prompts to update the software each time I launch it. This occurs even though I am certain I am running the latest version. Could you please help me understand why this might be happening, and advise on how to resolve this issue? It would be helpful if you could provide steps or recommendations to ensure that the software recognizes the current version installed on my system. Thank you for your time and assistance. I look forward to your prompt response. Best regards,Ahmed Morsy=========================Ahmed Morsy, Ph.D. Assistant Professor, Department of Stem Cell & Regenerative Biotechnology,Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, KoreaTel.: 02-450-0498C.P.: +82/10-5299-5844E-mail: ahmed_morsy86(a)yahoo.com; ahmed(a)konkuk.ac.kr Orcid id: https://orcid.org/0000-0003-3873-9903 Scopus id: 55258308400 (https://www.scopus.com/authid/detail.uri?authorId=55258308400) Researchgate: https://www.researchgate.net/profile/Ahmed-Abdal-Dayem GoogleScholar: https://scholar.google.co.kr/citations?user=NevFBgMAAAAJ&hl=en

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Alphafold
by Chang, Jufang 06 May '24

06 May '24

Dear Sir Recently I can not use the ChimerX to do the alphafold prediction. The error message is some connection to the colab is broken sine March 2024. I am wondering when this feature of ChimeraX will come back? Thank you Ju-Fang ________________________________ The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail.

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Amber output pdb file - can't open... bad PDB record
by Alexander Hung Lee 06 May '24

06 May '24

Hi! I have a large system containing >100k atoms w/o water. Amber produced a pdb file, and I have a trajectory file for it. When I try to open the pdb in chimeraX, most of it loads but with warning "Ignoted bad PDB record on line xxx" and it's all for atom # > 9,999. As a result, when I try to open the .nc file along with the pdb file, the # of atoms don't match anymore. Alex Lee PhD Student Woods Research Group<https://woodsgroup.franklinresearch.uga.edu/> Department of Biochemistry & Molecular Biology Complex Carbohydrate Research Center University of Georgia 315 Riverbend Rd. Athens, GA 30602 Email: ahl63010(a)uga.edu Mobile: (470) 641-3884

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Re: [Chimera-users] Chimera scripting
by Elaine Meng 06 May '24

06 May '24

Hello Flip, (1) we would generally recommend using ChimeraX over Chimera for many reasons: performance, enhanced features, current development and support. The rest of this answer applies to ChimeraX so I'm putting it on the chimerax-users list. (2) you can create a blank cubic grid first with "volume new" and then refer to that in the "molmap" command "onGrid" option. <https://rbvi.ucsf.edu/chimerax/docs/user/commands/volume.html#new> <https://rbvi.ucsf.edu/chimerax/docs/user/commands/molmap.html> (3) I do not understand what you mean by losing secondary structure information when saving a map. Only atomic structures (not maps) have secondary structure information, i.e. helix and strand assignments. Can you clarify? I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco > On May 6, 2024, at 10:40 AM, Flip Jansen via Chimera-users <chimera-users(a)cgl.ucsf.edu> wrote: > > Hello Chimera dev team, > > I am a junior specialist from across the hall working at the Fraser Lab and I have some questions about using chimera scripting for omitting densities and generating reference maps. > > One of the issues I have been having has been that using the molMap function in Chimera generates a non-cubic output and I am aware that I can use onGrid with a pre-existing map with the desired dimensions. However, in the workflow, I am setting up I do not yet have a reference map and I am in most scenarios starting with just a PDB or an adapted from PDB map. > > Is there a way to let Chimera(X) generate a cubic output map from PDB without requiring another map from an external program like cryoSPARC? > > Another question I have is regarding the loss of secondary structural information when saving a map in Chimera. Is there a way to save a map while maintaining that information? > > Any help is highly appreciated, I would also be happy to come by an talk in person. > > Best, > Flip Jansen

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