Thanks Pavel. I was a little tired from an overnight Synchrotron run when I
wrote that. Lesson: Stay off the internet when you are tired. Haha. I
forgot that the TLS groups would be assigned per chain not per molecule.
Thanks for the correction. I didn't know you could run find TLS groups as
part of the refinement strategy. Very helpful.

-Yarrow


On Tue, Apr 15, 2014 at 8:36 PM, Pavel Afonine <[email protected]> wrote:

> Hello Yarrow,
>
> in some refinement software (phenix.refine), if you run TLS refinement and
>> you don't specify the TLS groups, the entire structure is considered one
>> TLS group
>
>
> if you use TLS parameterization and do not specify TLS groups, two
> scenarios are possible: a) each chain will be treated as one TLS group, b)
> if you define tls.find_automatically=true (or check appropriate box in the
> GUI) it will find TLS groups as part of refinement similarly to TLSMD but
> ~100 times faster.
>
>
>> This may be why the annotators could not find the TLS groups.
>
>
> In any case, if TLS refinement was used, then TLS matrices defining
> refined TLS parameters are always present in PDB file header (in REMARK 3
> records). In case of just one group there will be just one set of T,L and S.
>
> Finally, if you've done TLS refinement and decided not to use TLS in the
> next refinement you do not need to remove ANISOU records manually - the
> program will figure this out.
>
> All the best,
> Pavel
>
>

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