[phenixbb] hi

[Ralf W. Grosse-Kunstleve]

>  From the phenix manual:
>
> Refinement with minimization (selected part of model):
> % phenix.refine data.hkl model.pdb strategy=individual_sites 
> sites.individual="chain A"
>
> This will refine the coordinates of atoms in chain A while keeping fixed 
> the atomic coordinates in chain B.

We have a pretty general atom selection syntax which lets you select
for example

  sites.individual="resid 10:20"

in case the moving and the fixed part have the same chain id.
See the "Atom selection examples" in the phenix.refine docs.

Ralf