Hi Zafer, An example command is write format mol2 #0 ~/Desktop/myfile.mol2 Of course, that example will only work if your structure(s) are open as model #0. Depending on what you did, it could be some other number. You would check this by looking in the Model Panel (open from Favorites menu), but generally the first thing opened is #0, the next one #1, etc. The “Usage” line in the manual page for the command shows that options (format mol2) should go before the model number (#0). <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/write.html> Like I said before, you should always try your commands in the GUI to get them right before you put them into a script. Lots of commands use model number or other atom specification, and there is a whole separate manual page for that with many examples: <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/atom_spec.html#basic> I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco
On Mar 18, 2019, at 8:40 AM, Zafer AYDIN <zafer.aydin@agu.edu.tr> wrote:
Dear Elaine,
I am struggling a little bit with the links you sent me and the command formats of chimea. I wrote the following Python script called addh_addcharge.py to add hydrogens and charges to a drug molecule.
import chimera from chimera import runCommand runCommand("addh") runCommand("addcharge") runCommand("write 1 format mol2 %s" % "drug.mol2")
I ran this code from command-line as
${chimera_dir}chimera --nogui --script "addh_addcharge.py" $drug_mol2_filename
Although I am able to add hydrogens and charges without any errors, I am getting the following error when I try to save the model using the last write command in my Python code:
MidasError: no model ids match "1" File "/vol1/software/edock/2018.08.6/script/beforedocking/chimera/share/Midas/__init__.py", line 4253, in _getModelsFromId raise MidasError, "no model ids match \"%s\"" % s
Looks like the command expects me to include a model number. I checked the link below but could not figure out which model number I should provide:
http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/framecommand.html
It would be quite useful if the link of each command includes an example.
I also tried the commands in
http://plato.cgl.ucsf.edu/trac/chimera/attachment/wiki/Scripts/save.py
but received other errors. I will appreciate if you can you tell me how I can save the model using the write command.
Thanks, Zafer
From: "Elaine Meng (meng@cgl.ucsf.edu)" <meng@cgl.ucsf.edu> To: Zafer AYDIN <zafer.aydin@agu.edu.tr> Cc: chimera List <chimera-users@cgl.ucsf.edu> Date: Fri, 15 Mar 2019 09:30:20 -0700 Subject: Re: [Chimera-users] could not find binaries for addh and addcharge programs
Please see the last paragraph of my previous reply.
First to figure out the commands you want, you would have to try them yourself in the GUI. Then, you would put the commands in a script. Then you would start Chimera with the nogui option and input your script. These topics are covered in the links I sent.
Best, Elaine
On Mar 15, 2019, at 9:11 AM, Zafer AYDIN <zafer.aydin@agu.edu.tr> wrote:
Dear Elaine,
I want to be able to run these commands (findhbond and addcharge) from Linux command-line only. I don't know how I can do it through the chimera executable. Can you send me an example command-line that does that? I don't want to open structures in GUI.
Thanks, Zafer
From: "Elaine Meng (meng@cgl.ucsf.edu)" <meng@cgl.ucsf.edu> To: Zafer AYDIN <zafer.aydin@agu.edu.tr> Cc: chimera-users@cgl.ucsf.edu Date: Fri, 15 Mar 2019 08:44:42 -0700 Subject: Re: [Chimera-users] could not find binaries for addh and addcharge programs
Hi Zafer Aydin, The commands are “findhbond” (or “hbonds”) and “addcharge” — they are in the Chimera executable, and they are not separate binaries.
<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/hbonds.html> <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/addcharge.html>
For example, open your structure(s) and then use commands:
findhbond reveal true addcharge
Of course, there are other command options, and you would need to read the manual pages linked above to decide whether you want to use any of them.
If you want to use Chimera without any graphical interface (not even the Chimera window), you need to start it with the nogui option and input your structures and commands in a script. See <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/startup.html> <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/options.html> <http://www.rbvi.ucsf.edu/chimera/docs/ProgrammersGuide/basicPrimer.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 Mar 15, 2019, at 7:31 AM, Zafer AYDIN <zafer.aydin@agu.edu.tr> wrote:
Hi,
I installed chimera software to my Ubuntu workstation. I want to add hydrogen bonds and charges to ligand molecules. I could not find the addh and addcharge executables under the chimera directory.
I would readlly appreciate if you can provide me basic guidelines for how to add hydrogen bonds and charges to ligand molecules using chimera from command-line (not from GUI).
Many thanks,
Zafer Aydin AGÜ Computer Engineering Department Kayseri, Turkey
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