Some reading suggestions that should help (I'm not claiming this is a complete list of relevant resources!!!):

1) TLS from fundamentals to practice. Urzhumtsev A, Afonine PV, Adams PD. Crystallography Reviews 19, 230-270 (2013).

2) From deep TLS validation to ensembles of atomic models built from elemental motions. Urzhumtsev A, Afonine PV, Van Benschoten AH, Fraser JS, Adams PD Acta Cryst. D71, 1668-83 (2015).

3) "On atomic displacement parameters (ADP) and their parameterization in PHENIX"
http://phenix-online.org/newsletter/CCN_2010_07.pdf

4)
http://journals.iucr.org/d/issues/2012/04/00/ba5180/ba5180.pdf
Towards automated crystallographic structure refinement with phenix.refine. Afonine PV, Grosse-Kunstleve RW, Echols N, Headd JJ, Moriarty NW, Mustyakimov M, Terwilliger TC, Urzhumtsev A, Zwart PH, Adams PD. Acta Cryst. D68, 352-367 (2012).

Pavel

On 5/31/18 15:49, Eugene Osipov wrote:

Hi, everyone,

Can someone shed a light on B-factor refinement in PHENIX.refine.

I am refining the structure with 2.5 A resolution, with individual B-factors and automatically defined TLS groups. Despite isotropic refinement of B-factors I still see ANISOU entries for atoms.

I figured out that these ANISOU lines appear only after TLS refinement.

So the question is how these ANISOU values are calculated?

--

Eugene Osipov
Junior Research Scientist
Laboratory of Enzyme Engineering
A.N. Bach Institute of Biochemistry
Russian Academy of Sciences
Leninsky pr. 33, 119071 Moscow, Russia
e-mail: e.m.osipov@gmail.com