Thank you, it works well. 

See the "Save relative to" near the bottom of the PDB Save dialog.  In your image it is saving relative to #0, a pdb file.  You need to change the model in that line to the map model.

You can check in the Model Panel (menu: Favorites... Model Panel) to see which models are which numbers.
I hope this helps,
Elaine
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Elaine C. Meng, Ph.D.                      
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco


> On May 11, 2020, at 9:01 PM, 李雄俊 <lixiongjun228@qq.com> wrote:
>
> Hello:
> I  dragged a partial thread pdb to dock a volume map with UCSF-Chemira, but when I saved the pdb, and open the new pdb and the mrc file, they are still uncouple. Please point out the mistakes in my method, thank you very much.
> <30FDE806@C4B4D716.A81FBA5E.jpg>
> fig 1. Yellow chain is the partial thread pdb, pink one is native pdb, grey one is the volume data.
>
> <3100E200@AE407D4E.A81FBA5E.jpg>
> fig 2. After dragging, docked pdb and volume data
>
> 
> <2CFDE501@53897A73.A81FBA5E.jpg>
> Fig 3. options of 'save pdb'
>
> After these actions, pdb and mrc are still uncouple when I reopen them in another Chemira.