Dear colleagues, 

Is there a way to assign cryo-EM densities not included in the model sequence? 

Do you have any tools that can help?  

More closely, is there a way to screen the cryo-EM map + model, point out the unassigned densities, and provide the possible structures to fit in (e.g., water molecules, etc.)? 

Thank you.

Kind regards, 

Dmitry