Phenix: Difference between revisions

161 bytes removed ,  26 March 2009
remove duplicate NCS entry; add entry about bond modifications etc
m (→‎TLS: add example for rigid body and NCS definition)
(remove duplicate NCS entry; add entry about bond modifications etc)
Line 38: Line 38:
  phenix.refine model.pdb data.mtz all_ligands.cif ...
  phenix.refine model.pdb data.mtz all_ligands.cif ...


== Occupancy refinement ==
== Restraints in real space ==
=== Occupancy ===


Adding "occupancy" to the "strategy" options will refine the occupancies of those parts of the model that have alternate conformations.
Adding "occupancy" to the "strategy" options will refine the occupancies of those parts of the model that have alternate conformations.


== NCS ==
=== NCS ===


Automatic detection of NCS groups:
Automatic detection of NCS groups:
Line 61: Line 62:
  }
  }


== TLS ==
=== TLS ===


* run your model through TLSMD server to identify TLS domains (it will produce PHENIX friendly TLS groups selections);
* run your model through TLSMD server to identify TLS domains (it will produce PHENIX friendly TLS groups selections);
Line 87: Line 88:
  }
  }


== NCS ==
== switching off specific interactions ==


example for ncs.def :
To switch off the interaction between a specific atom and its environment, e.g. to obtain unbiased (by restraints) estimates of distances, see http://www.phenix-online.org/documentation/refinement.htm#anch80
refinement.ncs.restraint_group {
  reference = chain 'A' and (resseq 1:44 or resseq 47 or resseq 49:88 ) and (not element H)
  selection = chain 'B' and (resseq 1:44 or resseq 47 or resseq 49:88 ) and (not element H)
  selection = chain 'C' and (resseq 1:44 or resseq 47 or resseq 49:88 ) and (not element H)
  selection = chain 'D' and (resseq 1:44 or resseq 47 or resseq 49:88 ) and (not element H)
}


== See also ==
== See also ==
1,328

edits