- Chimera-users - RBVI Mailing Lists

RBVI downtime
by Eric Pettersen 13 Jun '24

13 Jun '24

Hi all, The RBVI compute cluster will be down for scheduled maintenance Monday and Tuesday of next week (June 17/18) which means that the Chimera and ChimeraX web sites (including the ChimeraX toolshed) and mailing lists will be down during that time. This also means that web services from Chimera/ChimeraX that access our compute cluster will not work (Blast Protein, Modeller tools, sequence realignment). We are sorry for any inconvenience. --Eric Eric Pettersen UCSF Computer Graphics Lab

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ChimeraX_InfoRequest
by Altan KARA (MAM-GMBE) 10 Jun '24

10 Jun '24

To whom it may concern, How we can create high resolution images with ChimeraX? No matter what I tried still the outputted images are not in high resolution. Thanks Dr. Altan KARA Kd. Uzman Araştırmacı TÜBİTAK MAM Gen Mühendisliği ve Biyoteknoloji Enstitüsü Barış Mah. Dr. Zeki Acar Cad. No.1 P.K. 21 41470 GEBZE / KOCAELİ T +90 262 677 3371 F +90 262 641 2309 www.mam.gov.tr altan.kara(a)tubitak.gov.tr

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Converting a carbonyl group to carboxylic acid group
by Prathvi Singh 06 Jun '24

06 Jun '24

Hi Elaine, I have a SER residue which is in the middle of a polypeptide chain. Is there a way in chimera/chimeraX to specifically extract this residue such that the carbonyl group bonded to its N-terminal NH group also gets extracted but is converted to carboxylic acid group (-COOH group) before extracting? Thanks in advance, Prathvi Singh, Research Fellow, Department of Biological Sciences & Bioengineering, Indian Institute of Technology, Kanpur-208016

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Help saving models as .pdb file
by Jacek Jagodzinski 03 Jun '24

03 Jun '24

I have constructed model of pentameric protein by exchanging one of the chains with a very closely related chain from other variant of such pentameric protein. Chimera recognizes that my model consists of parts of two proteins. I would like to save it as a single protein file. When I attempt to save model as a single file (option in save dialog) a PDB file is produced. However, when I open this file in other application (such as Cresset Flare) to explore molecular dynamics or docking in this newly constructed hybrid system - it opens as two different proteins. Is it possible to “merge” the parts to become a single pentameric protein, that would behave as single entity during docking or MD computations? Jacek Jagodzinski PS. I am not computational chemist, I am medicinal chemist by training and long career.

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Using Chimera/AutoDock Vina for oligomers
by Ballanah Torbett 24 May '24

24 May '24

Hello, I hope this email finds you well! I had a question about using the Chimera and its AutoDock Vina interface, as I'm relatively new to using these programs. I've been able to dock substrate onto one binding site of my protein of interest, but I'd like to apply it to the other three binding sites of the tetramer as well. I wouldn't be able to work with the monomer since the active sites are formed from the interactions between the N and C termini. I have also tried saving the session as a new PDB file and docking a new substrate, but it bound to the already-occupied site. Is there a way to dock substrate onto the other sites while "ignoring" the occupied site? Thank you! Sincerely, Ballanah Torbett 3rd Year PhD Student Gaucher Group Georgia State University

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Saving symmetry model in pdb format
by Kailash Singh Bisht 17 May '24

17 May '24

Hello ChimeraX team I am trying to export the symmetry structure of the protomer virus protein as a pdb file but whenever I am saving that model it only saves the same protomer instead of the whole symmetry structure. Can you please help? How to export those symmetry models as PDB files -- With Regards Thanking You Kailash Singh Bisht Ph.D. Student

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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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Difficulty with Ribbon Visualization in Chimera Software
by 罗舒月 15 May '24

15 May '24

Dear Chimera Software Team,     I hope this email finds you well. I am writing to seek assistance regarding a challenge I am facing while using the Chimera software. Specifically, I am experiencing difficulties in visualizing my protein structure in ribbon mode.     When I load my PDB file and choose the ribbon representation, the resulting visualization appears as linear segments rather than the desired helical structure. I am unsure whether this issue is related to my file or if there is a specific step or setting I am overlooking.    I would greatly appreciate it if you could provide me with guidance on how to achieve the desired helical ribbon model in Chimera or any insights on potential issues with my file. To assist you in troubleshooting, I have attached the PDB file in question, as well as an image showing the current ribbon visualization.    Thank you in advance for your time and support. I look forward to your prompt response.  Best regards, Shuyue Luo the result of my file the effect I want 发自我的企业微信

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Difficulty with Ribbon Visualization in Chimera Software
by 罗舒月 15 May '24

15 May '24

Dear Chimera Software Team,      I hope this email finds you well. I am writing to seek assistance regarding a challenge I am facing while using the Chimera software. Specifically, I am experiencing difficulties in visualizing my protein structure in ribbon mode.      When I load my PDB file and choose the ribbon representation, the resulting visualization appears as linear segments rather than the desired helical structure. I am unsure whether this issue is related to my file or if there is a specific step or setting I am overlooking.    I would greatly appreciate it if you could provide me with guidance on how to achieve the desired helical ribbon model in Chimera or any insights on potential issues with my file. To assist you in troubleshooting, I have attached the PDB file in question, as well as an image showing the current ribbon visualization.     Thank you in advance for your time and support. I look forward to your prompt response.   Best regards, Shuyue Luo the result of my file the effect I want 发自我的企业微信

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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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Chimera scripting
by Flip Jansen 06 May '24

06 May '24

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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Issues installing chimera on linux
by Conor Bonal 02 May '24

02 May '24

Hello, I tried to follow the tutorial to install Chimera on Linux. I'm using a computer with Ubuntu 18.04.5 and it is 64-bit. I followed the tutorial word for word then substituted "chimera-installer.bin" with the file name "chimera-1.17.3-linux_x86_64.bin" and I continued to get the same error message telling me the file or directory does not exist, although I can clearly see it in my downloads folder. Can you provide any assistance with installing the software? Thank you! Conor Bonal

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Question about save images
by Chang, Jufang 29 Apr '24

29 Apr '24

Hi, there, I used Chimera for a very short period of time. When I just started using Chimera I was able to save image by going to "file" and "save image" to save the image on the display window. For some reason, this stopped working. Now, after I did the same thing, the image I saved has complete blackness (attached). I wonder whether I might get be able to get help from you. I also tried using command line to save image. The result is the same. The exact procedure I used are: Go to "Presets", choose "publication 1" , then go to "File" and "save image" I used window system. Thank you J ________________________________ 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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Ligand has no chain ID after saving docked complex
by kalabamelisa＠yahoo.com 24 Apr '24

24 Apr '24

Hello. I want to use PRODIGY web server to predict the binding affinity of my docked complexes, and the server requires a single PDB file containing both the docked ligand and the protein. I open the .pdbqt file containing the docking results using ViewDock and then I open my receptor file in .pdb format. I combine the two (receptor and the best ligand) and then save the complex as a PDB file. The server requires the ligand's name and what chain it's on, but when I open the complex in Chimera the ligand has no chain ID, it just shows up as "het". How do I assign a chain ID to my ligand in this situation?

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Problem in Docking Output
by Mrs Kumud Pant 22 Apr '24

22 Apr '24

Dear Developers, I am facing problem of incomplete docking. The error statement is pasted below. Also attaching receptor and ligand file for your perusal. Since I am new to this software therefore, detailed explanation is requested in eliminating the problem. #0, chain A: prostaglandin G/H synthase 1 Model 0 (oxidoreductase.pdb) appears to be a protein without secondary structure assignments. Automatically computing assignments using 'ksdssp' and parameter values: energy cutoff -0.5 minimum helix length 3 minimum strand length 3 Use command 'help ksdssp' for more information. No incomplete side chains Terminii for oxidoreductase.pdb (#0) chain A determined from SEQRES records Chain-initial residues that are actual N terminii: MET 1.A Chain-initial residues that are not actual N terminii: Chain-final residues that are actual C terminii: LEU 599.A Chain-final residues that are not actual C terminii: 595 hydrogen bonds Hydrogens added Charge model: AMBER ff14SB Total charge for #0: -2.000 No incomplete side chains Terminii for oxidoreductase.pdb (#0) chain A determined from SEQRES records Chain-initial residues that are actual N terminii: MET 1.A Chain-initial residues that are not actual N terminii: Chain-final residues that are actual C terminii: LEU 599.A Chain-final residues that are not actual C terminii: 566 hydrogen bonds Hydrogens added Charge model: AMBER ff14SB Total charge for #0: -2.000 Wrote C:\Users\GEU\Downloads\new dock\oxidoreductase.pdb #1, chain A: prostaglandin G/H synthase 1 Terminii for oxidoreductase.pdb (#1) chain A determined from SEQRES records Chain-initial residues that are actual N terminii: #1 MET 1.A Chain-initial residues that are not actual N terminii: Chain-final residues that are actual C terminii: #1 LEU 599.A Chain-final residues that are not actual C terminii: 566 hydrogen bonds Hydrogens added Wrote oxidoaspirin.receptor.pdb into C:\ProgramData\Chimera adding gasteiger charges to peptide Wrote oxidoaspirin.ligand.pdb into C:\ProgramData\Chimera Autodock Vina ligand docking initiated for oxidoreductase.pdb Status file contents: 1639 1713445280.81 1713445293.84 Terminii for oxidoreductase.pdb (#1) chain A determined from SEQRES records Chain-initial residues that are actual N terminii: #1 MET 1.A Chain-initial residues that are not actual N terminii: Chain-final residues that are actual C terminii: #1 LEU 599.A Chain-final residues that are not actual C terminii: 566 hydrogen bonds Hydrogens added Wrote oxidoaspirin.receptor.pdb into C:\ProgramData\Chimera adding gasteiger charges to peptide Wrote oxidoaspirin.ligand.pdb into C:\ProgramData\Chimera Autodock Vina ligand docking initiated for oxidoreductase.pdb Running AutoDock Vina for oxidoreductase.pdb failed; see Reply Log for more information Application stderr ----- [no output] ----- Application stdout ----- [no output] ----- Status file contents: 1639 1713445301.94 1713445303.83 Running AutoDock Vina for oxidoreductase.pdb failed; see Reply Log for more information Application stderr ----- [no output] ----- Application stdout ----- [no output] ----- Search error: couldn't compile regular expression pattern: invalid escape \ sequence Probably an error in regular expression. Search error: couldn't compile regular expression pattern: invalid escape \ sequence Probably an error in regular expression. #1, chain A: prostaglandin G/H synthase 1 Terminii for oxidoreductase.pdb (#1) chain A determined from SEQRES records Chain-initial residues that are actual N terminii: #1 MET 1.A Chain-initial residues that are not actual N terminii: Chain-final residues that are actual C terminii: #1 LEU 599.A Chain-final residues that are not actual C terminii: 566 hydrogen bonds Hydrogens added Wrote oxidoaspirin.receptor.pdb into C:\ProgramData\Chimera adding gasteiger charges to peptide Wrote oxidoaspirin.ligand.pdb into C:\ProgramData\Chimera Autodock Vina ligand docking initiated for oxidoreductase.pdb Status file contents: 1639 1713447116.49 1713447119.45 Running AutoDock Vina for oxidoreductase.pdb failed; see Reply Log for more information Application stderr ----- [no output] ----- Application stdout ----- [no output] ----- Terminii for oxidoreductase.pdb (#1) chain A determined from SEQRES records Chain-initial residues that are actual N terminii: #1 MET 1.A Chain-initial residues that are not actual N terminii: Chain-final residues that are actual C terminii: #1 LEU 599.A Chain-final residues that are not actual C terminii: 566 hydrogen bonds Hydrogens added Wrote oxidoaspirin.receptor.pdb into C:\ProgramData\Chimera adding gasteiger charges to peptide Wrote oxidoaspirin.ligand.pdb into C:\ProgramData\Chimera Autodock Vina ligand docking initiated for oxidoreductase.pdb Status file contents: 1639 1713447148.99 1713447151.35 Running AutoDock Vina for oxidoreductase.pdb failed; see Reply Log for more information Application stderr ----- [no output] ----- Application stdout ----- [no output] ----- Thank you in advance Dr. Kumud Pant Associate Professor Department of Biotechnology Graphic Era (Deemed to be) University Dehradun

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i can´t installate chimera.
by Suilma Ivette Pérez Pineda 14 Apr '24

14 Apr '24

hi! i cannot installate chimera, when i acept "terms and conditions", the windows says tht "i dessagree", when im agree. Suilma Ivette Pérez Pineda

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AutoDockVina: Merge charges
by limbuingso2112＠gmail.com 12 Apr '24

12 Apr '24

Hi all, Beginner to molecular docking. I tried to find answers to my question but to no avail and was hoping this site would help me in some ways. When conducting autodockVina after DockPrep, Tools > Surface/Binding Analysis > AutoDockVina. In the receptor/ligand options, there are two sections where you can merge charges Straight from the documentation: Merge charges and remove non-polar hydrogens (true/false) - note AutoDock Vina does not use charges or nonpolar hydrogens, so this setting is not expected to affect results except for the presence or absence of nonpolar hydrogens in the processed receptor Merge charges and remove lone pairs (true/false) - note AutoDock Vina does not use charges or lone pairs, so this setting is not expected to affect results except for the presence or absence of lone pairs in the processed receptor (and there may not have been any lone pairs to start with) While there is a caveat that it might affect results in some ways. I have been trying to dig deeper into this merge charges aspect of docking and could not find much explanation or documentation on it. My question stems from the fact that im docking a protein [5A8K] with 1 ligand. When i put false for the merge charges for both ligand and receptor, i get a negative score but with a absurd binding pose but when i put true for the merge charges [default] for both ligand and receptor, i get a negative score with a good binding pose which has matched literature. I initially placed false because i got the idea that merging charges was an approximation/simplification and i wanted to model the system better without merging charges. If autodock does not use charges at all, why does my result differ so much when i change those settings. Any insights into this matter is highly appreciated. TIA

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AutoDockVina: Merge charges
by limbuingso2112＠gmail.com 12 Apr '24

12 Apr '24

Hi all, Beginner to molecular docking. I tried to find answers to my question but to no avail and was hoping this site would help me in some ways. When conducting autodockVina after DockPrep, Tools > Surface/Binding Analysis > AutoDockVina. In the receptor/ligand options, there are two sections where you can merge charges Straight from the documentation: Merge charges and remove non-polar hydrogens (true/false) - note AutoDock Vina does not use charges or nonpolar hydrogens, so this setting is not expected to affect results except for the presence or absence of nonpolar hydrogens in the processed receptor Merge charges and remove lone pairs (true/false) - note AutoDock Vina does not use charges or lone pairs, so this setting is not expected to affect results except for the presence or absence of lone pairs in the processed receptor (and there may not have been any lone pairs to start with) While there is a caveat that it might affect results in some ways. I have been trying to dig deeper into this merge charges aspect of docking and could not find much explanation or documentation on it. My question stems from the fact that im docking a protein [5A8K] with 1 ligand. When i put false for the merge charges for both ligand and receptor, i get a negative score but with a absurd binding pose but when i put true for the merge charges [default] for both ligand and receptor, i get a negative score with a good binding pose which has matched literature. I initially placed false because i got the idea that merging charges was an approximation/simplification and i wanted to model the system better without merging charges. If autodock does not use charges at all, why does my result differ so much when i change those settings. Any insights into this matter is highly appreciated. TIA

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Protein Modeling with Model/Refine Loops Tool
by Ecem Güngör 09 Apr '24

09 Apr '24

Hello all, I have encountered an issue while working with a protein in complex with ligands. There are some missing regions in the protein structure, and I attempted to model these regions using the "Model/Refine Loops" tool in UCSF Chimera (version 1.17.3). However, I observed that when I saved the modeled structures as PDB files, the ligands were not included in the file. Additionally, in some models, the modeled C-terminal extended into the binding pocket in an unusual manner. I am curious whether this tool takes into account the presence of ligands or molecules in the structure while modeling missing regions. How can I prevent such issues from occurring? How can I model the missing long C-terminal in Chimera while ensuring that the presence of other ligands or molecules is also considered? Thanks in advance. Ece.

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Bug
by Anoop B S 09 Apr '24

09 Apr '24

Sometimes its not responsive.How to resolve that

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Opening chimera within MS powerpoint
by Prathvi Singh 08 Apr '24

08 Apr '24

Hi Elaine, I was wondering whether it it possible (either directly or via a plugin) to open a UCSF chimera/chimeraX window within a Microsoft powerpoint slide so that I can open a PDB file directly within the slide and perform different types of operations (showing distance between 2 atoms which someone from the audience demanded to know, for example)? This way, I would be able to satisfy the doubts of the audience without breaking the flow of the presentation. Thank you, -- Prathvi Singh, Research Fellow, Department of Biological Sciences & Bioengineering, Indian Institute of Technology, Kanpur-208016

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Fw: Chimera numpy error
by Garrett Scapellato 01 Apr '24

01 Apr '24

Garrett Scapellato Research Technician II Edwards Lab DHVI Duke University [cid:133a3af9-3314-4e94-9c72-9d0bc6ffe6cc] ________________________________ From: Garrett Scapellato <garrett.scapellato(a)duke.edu> Sent: Friday, March 29, 2024 2:24 PM To: pett(a)cgl.ucsf.edu <pett(a)cgl.ucsf.edu> Subject: Re: Chimera numpy error Eric, Apologies for sending so many emails. I was able to delete all numpy modules from Chimera. Now when I try to open Chimera I get this error. Traceback (most recent call last): File "/Applications/Chimera.app/Contents/Resources/share/__main__.py", line 73, in <module> value = chimeraInit.init(sys.argv) File "/Applications/Chimera.app/Contents/Resources/share/chimeraInit.py", line 680, in init import chimera File "/Applications/Chimera.app/Contents/Resources/share/chimera/__init__.py", line 2782, in <module> from SimpleSession import BEGIN_RESTORE_SESSION, END_RESTORE_SESSION File "/Applications/Chimera.app/Contents/Resources/share/SimpleSession/__init__.py", line 14, in <module> from save import saveSession, sessionID, noAutoRestore, autoRestorable, \ File "/Applications/Chimera.app/Contents/Resources/share/SimpleSession/save.py", line 13, in <module> from chimera import replyobj, selection, SessionPDBio, version File "/Applications/Chimera.app/Contents/Resources/share/chimera/selection/__init__.py", line 1033, in <module> from chimera import oslParser File "/Applications/Chimera.app/Contents/Resources/share/chimera/oslParser.py", line 690, in <module> import numpy ImportError: No module named numpy I tried reinstalling numpy the same way I installed pandas, but I get the same error as above. How can I fix this issue? Thanks, Garrett Scapellato Research Technician II Edwards Lab DHVI Duke University [cid:5a4e481b-169d-4789-87e0-4c616c5183fc] ________________________________ From: Garrett Scapellato Sent: Friday, March 29, 2024 2:11 PM To: pett(a)cgl.ucsf.edu <pett(a)cgl.ucsf.edu> Subject: Chimera numpy error Eric, I get the following error whenever I try to open chimera. I tried uninstalling numpy with a pip installer, and that didn't work, I assume because it doesn't uninstall the module from chimera specifically. DHVI-F5KJC04Q:~ edwardslab$ chimera Traceback (most recent call last): File "/Applications/Chimera.app/Contents/Resources/share/__main__.py", line 73, in <module> value = chimeraInit.init(sys.argv) File "/Applications/Chimera.app/Contents/Resources/share/chimeraInit.py", line 680, in init import chimera File "/Applications/Chimera.app/Contents/Resources/share/chimera/__init__.py", line 2782, in <module> from SimpleSession import BEGIN_RESTORE_SESSION, END_RESTORE_SESSION File "/Applications/Chimera.app/Contents/Resources/share/SimpleSession/__init__.py", line 14, in <module> from save import saveSession, sessionID, noAutoRestore, autoRestorable, \ File "/Applications/Chimera.app/Contents/Resources/share/SimpleSession/save.py", line 13, in <module> from chimera import replyobj, selection, SessionPDBio, version File "/Applications/Chimera.app/Contents/Resources/share/chimera/selection/__init__.py", line 1033, in <module> from chimera import oslParser File "/Applications/Chimera.app/Contents/Resources/share/chimera/oslParser.py", line 690, in <module> import numpy File "/Applications/Chimera.app/Contents/Resources/lib/python2.7/site-packages/numpy/__init__.py", line 142, in <module> from . import core File "/Applications/Chimera.app/Contents/Resources/lib/python2.7/site-packages/numpy/core/__init__.py", line 91, in <module> raise ImportError(msg.format(path)) ImportError: Something is wrong with the numpy installation. While importing we detected an older version of numpy in ['/Applications/Chimera.app/Contents/Resources/lib/python2.7/site-packages/numpy']. One method of fixing this is to repeatedly uninstall numpy until none is found, then reinstall this version. I also tried rm -rf ~/Applications/Chimera.app/Contents/Resources/lib/python2.7/site-packages/numpy/ repeatedly, but that didn't work. I couldn't use Finder to navigate to the python2.7 folder to delete the files manually, either. Any help would be appreciated. Thanks, Garrett Scapellato Research Technician II Edwards Lab DHVI Duke University [cid:570bb78a-e702-4643-995c-11d5cdaf82fd]

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Importing Modules into Chimera
by Garrett Scapellato 28 Mar '24

28 Mar '24

Chimera Help, Hello, I hope you are doing well. I am attempting to use the "pandas" module while using Chimera to read python code. I receive this error any time I do. I am able to use pandas while using other python interpreters on my computer. I am also able to use other modules, such as NumPy when using Chimera to run python code. Any help in this issue would be greatly appreciated. Thank you for your time, Garrett Scapellato Research Technician II Edwards Lab DHVI Duke University [cid:d20c0851-a63b-49a0-a3e5-efa576c4dc55]

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Problems installing Chimera for command line use on Centos
by Evan Kantrowitz 25 Mar '24

25 Mar '24

Hi All, I am trying to move our viewmotions.bc.edu <http://viewmotions.bc.edu/> server to a new server running Centos 9. I downloaded the most recent chimera (chimera-1.17.3-linux_x86_64.bin <https://www.cgl.ucsf.edu/chimera/cgi-bin/secure/chimera-get.py?file=linux_x…>). Followed the install procedure with no issues. When I ran chimera I got these errors, both in commandline mode or regular. Any help would be appreciated. Thanks kantrow@localhost ~/vm_test]$ chimera --preferences /data/viewmotions/lib/chimeraVMPreferences --script chimera_script.py Traceback (most recent call last): File "/progs/share/__main__.py", line 73, in <module> value = chimeraInit.init(sys.argv) File "/progs/share/chimeraInit.py", line 680, in init import chimera File "/progs/share/chimera/__init__.py", line 2782, in <module> from SimpleSession import BEGIN_RESTORE_SESSION, END_RESTORE_SESSION File "/progs/share/SimpleSession/__init__.py", line 14, in <module> from save import saveSession, sessionID, noAutoRestore, autoRestorable, \ File "/progs/share/SimpleSession/save.py", line 13, in <module> from chimera import replyobj, selection, SessionPDBio, version File "/progs/share/chimera/replyobj.py", line 24, in <module> import Tkinter File "/progs/lib/python2.7/lib-tk/Tkinter.py", line 39, in <module> import _tkinter # If this fails your Python may not be configured for Tk ImportError: libXss.so.1: cannot open shared object file: No such file or directory ----------------------------------------------------------------------------- Evan R. Kantrowitz, Ph.D evan.kantrowitz(a)bc.edu <mailto:evan.kantrowitz@bc.edu> Emeritus Professor of Chemistry Cell: 617-775-9915 Boston College www2.bc.edu/evan-kantrowitz <http://www2.bc.edu/~kantrow> -----------------------------------------------------------------------------

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cannot access Chimera website
by lbmccusker＠retired.ethz.ch 19 Mar '24

19 Mar '24

I am an enthusiastic user of Chimera for non-protein applications (in particular zeolites), and would like to use it in an upcoming workshop on charge flipping. However, when I tried to check the website (https://www.cgl.ucsf.edu/chimera/ to give students instructions for downloading, I got the message Secure Connection Failed An error occurred during a connection to http://www.cgl.ucsf.edu PR_END_OF_FILE_ERROR Error code: PR_END_OF_FILE_ERROR The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem. Can you check into this? I tried Safari, Firefox and Edge, and all have the same problem. Thanks! Lynne McCusker

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