Dear colleagues, 

 

While refining my model, the Mg atom for some of the margin units moves far away from them. I am also using the ELBOW files of Mg during the refinement. 

 

What is the way to restrict the movement of atoms during refinement? 

I found that this behaviour can be observed after simulated annealing is on. And the harmonic_restraints may be acquired to restrict atom movement. 

Is that right? 

I am using the GUI version of Phenix, and I cannot see those parameters. 

 

Thank you. 

 

Sincerely, 

Dmitry