It's place_ions at the CLI or "Place elemental ions" in the GUI on the "Refinement settings" tab. As Pavel said, UNX is an unknown ion so you can't really refine it. You could make it HOH to see what happens but you should know something about what it may be.

Cheers

Nigel

---
Nigel W. Moriarty
Building 33R0349, Molecular Biophysics and Integrated Bioimaging
Lawrence Berkeley National Laboratory
Berkeley, CA 94720-8235
Phone : 510-486-5709     Email : NWMoriarty@LBL.gov
Fax   : 510-486-5909       Web  : CCI.LBL.gov


On Fri, May 22, 2020 at 6:13 PM Muhammad Bashir Khan <mbk@ualberta.ca> wrote:
Hi Nigel;
I tried to find that option, but I can not find it. Could you please give some more hints where is that option is hidden.

Thanks

Bashir

On Fri, May 22, 2020 at 4:11 PM Pavel Afonine <pafonine@lbl.gov> wrote:
Hi,

please define "refinement still not working". I think phenix.refine wont accept UNX because it has undefined scattering type.

Pavel

On 5/22/20 13:41, Nigel Moriarty wrote:
Muhammad

There is an option in refinement that will determine the ion that best fits a density blob. You should try that after removing the UNX. 

Cheers

Nigel

---
Nigel W. Moriarty
Building 33R0349, Molecular Biophysics and Integrated Bioimaging
Lawrence Berkeley National Laboratory
Berkeley, CA 94720-8235
Phone : 510-486-5709     Email : NWMoriarty@LBL.gov
Fax   : 510-486-5909       Web  : CCI.LBL.gov


On Fri, May 22, 2020 at 1:27 PM Muhammad Bashir Khan <mbk@ualberta.ca> wrote:
Hi there;

I find some unknown density in my map, where I put SO4 and in some UNX. I merged and save all in one PDB. I run ReadySet to make cif. file, but refinement still not working. Can anybody explain what else I should provide?

Thanks in advance

Bashir

--
------------------------------------------------------
Muhammad Bashir Khan, Ph.D.
Research Associate
Department of Biochemistry
Medical Science Bldg.
Lab 3-27
University of Alberta
Edmonton AB, T6G 2H7

Phone: 780-492-4577-
e-mail: mbk@ualberta.ca
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--
------------------------------------------------------
Muhammad Bashir Khan, Ph.D.
Research Associate
Department of Biochemistry
Medical Science Bldg.
Lab 3-27
University of Alberta
Edmonton AB, T6G 2H7

Phone: 780-492-4577-
e-mail: mbk@ualberta.ca