---- Replied Message ----

From	Elaine Meng<meng@cgl.ucsf.edu>
Date	12/20/2023 00:23
To	duhq<duhq@fudan.edu.cn>
Cc	chimerax-users@cgl.ucsf.edu<chimerax-users@cgl.ucsf.edu>
Subject	Re: [chimerax-users] Adjust Torsions section of Build Structure is missing

Hello Haiqin Du,
You need to get a newer ChimeraX,  the 1.7 release or a 1.8 daily build.  According to the Change Log, this feature was added after the 1.6 release branch:

<https://www.rbvi.ucsf.edu/trac/ChimeraX/wiki/ChangeLog>

If you use the User Guide in the Help menu, it should match the version you downloaded.  If you instead search the web and find the User Guide on our website, the information may be newer than the version of the program you are using.

I hope this helps,
Elaine
-----
Elaine C. Meng, Ph.D.                       
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Dec 18, 2023, at 8:05 PM, duhq via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Hello,
I'm a freshman to ChimeraX. I'm building an atomic structure of a synthetic peptide-like compound, following the online tutorial, https://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/editing/editing.html#start

I copied a SMILES string from the SMILES translator, and it gives a structure. Very good. But I want to adjust some bond angles. But I can't find the Adjust Torsions section in the dialogue of Build Structure (see the screen-print below). I can't active it by using the "rotation" command either, even though the target bond is already selected.

<Adjust Torsions missing.png>

Would you please help me to figure out this?
Best regards,

Haiqin DU  
duhq

duhq@fudan.edu.cn