Joel

Can you send all files directly to me.

NB. Any files sent to me will be held in strictest confidence.

Cheers

Nigel

---
Nigel W. Moriarty
Building 33R0349, Molecular Biophysics and Integrated Bioimaging
Lawrence Berkeley National Laboratory
Berkeley, CA 94720-8235
Phone : 510-486-5709     Email : NWMoriarty@LBL.gov
Fax   : 510-486-5909      Web  : CCI.LBL.gov


On Thu, Mar 25, 2021 at 6:02 PM Joel Tyndall <joel.tyndall@otago.ac.nz> wrote:

Hi all,

 

We have been finalising a structure with a ligand complexed to heme. I have been checking the close to final structure and I noticed that the ligand looks distorted away from what one would expect.  We use Phenix.refine

 

We initially used the grade server for our restraints files. I also just used elbow to generate a new one. Looking at both, the restraints look reasonable (similar in both) however the initial output pdb from elbow is distorted further. The angles /lengths looked reasonable and are similar to small molecule structures (CCDC).

 

The planarity of a bi-phenyl moiety is very distorted.

 

 

Are we missing something?

Do we need to tell phenix.refine to not over refine the model?

Should elbow give a distorted model?

 

Apologies if this is all online but my uni cant seem to access phenix.org!

 

Thanks in advance

 

Joel

 

 

Joel Tyndall | BSc(Hons) PhD

Associate Professor in Medicinal Chemistry
School of Pharmacy |
He Rau Kawakawa
University of Otago |
Te Whare Wānanga o Otāgo

PO Box 56 9054

Dunedin | Ōtepoti

New Zealand | Aotearoa 

Ph: 64 3 479 7293
Skype: jtyndall

Website | pharmacy.otago.ac.nz 

 

 

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