Hello, This was described by Eric just yesterday: <https://mail.cgl.ucsf.edu/mailman/archives/list/chimerax-users@cgl.ucsf.edu/message/PTDGZ5MOD7A67FWUWNI2LNT6EVW3HOPJ/> To summarize, you can use either of the following (A) Build Structure tool. Select the alpha-carbon of an amino acid residue (hide ribbons and show atoms, Ctrl-click CA atom). Open the tool from the menu: Tools... Structure Editing... Build Structure, and in that tool change from the Start Structure section to the Invert section, then click "Swap" <https://rbvi.ucsf.edu/chimerax/docs/user/tools/buildstructure.html#invert> (B) "build invert" command on the CA atom of an amino acid residue, for example residue 51 in chain A: build invert /A:51@ca <https://rbvi.ucsf.edu/chimerax/docs/user/commands/build.html#invert> I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco
On Jul 21, 2023, at 3:29 AM, Íñigo Izal Azcárate via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
Hi everyone,
Is there any way of changing the isomerism of protein residues from L to D? I use ChimeraX with students and it would be great to see what happens with some features of the structure like hydrophobicity after changing isomers.
Thanks so much in advance
Iñigo Izal Azcárate Personal de Apoyo a la Docencia, Coordinador del programa Science and Business Departamento de Bioquímica y Genética