Hi Eduardo, You probably need to get a newer version of ChimeraX. This "saveFile" option was added in April 2023, after the version 1.6 release branch according to the change log, <https://www.rbvi.ucsf.edu/trac/ChimeraX/wiki/ChangeLog> ... so you have to get the ChimeraX 1.7 daily build. Daily builds are available on the download page. If you use the help from inside ChimeraX (e.g. menu: Help... User Guide) it will show documentation that matches what you have downloaded. If you use web search, it may find documentation on our website that is newer than what you have downloaded. 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 7:50 PM, Eduardo Mauricio Martin via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

To whom it may concern:

According to the documentation sequences infor from a model can be retrieved by the following command:

info polymers #1 saveFile "C:\Users\faits\Documents\test8.txt"

Though the console keeps throwing the following error attached as image.

<A8E550E4EE8E42DDA9E9F46DE4EBA9EB.png>

I just need to retrieve the residue number for each subunit to run a Python script that removes sasa values from hetatm which are not in the protein per se. If there is a work around to acquiere this inforation in a file please let me know.

Kind regards,

Eduardo M Martin PhD Candidate Information systems Department Autonomous University of Aguascalientes.