TLS makes my r-factors shoot through the roof
Hi Phenixbb, 3.2A data, 110 Wilson B, I41, twinned. Imperfect inverted repeat dsDNA with 4 protein monomers, NCS not used in refinement. If I don't include TLS I get a nice stable R-factor while RMS goes down. If I include TLS (whether as one group per chain or as chosen by Phenix) this happens: [image: Inline images 1] Density disappears around some of the DNA bases as an obvious difference. If I run Refmac with TLS it just never finishes. While I could just refine without TLS this does make me worried that there is something wrong with my model or my data (besides being terrible). Cheers, Morten -- Morten K Grøftehauge, PhD Pohl Group Durham University
Hi Morten, I'm sorry about the problem. Are you using the latest Phenix? There was a bug in phenix.refine that I fixed a while ago, and the bug behavior was very similar to what I see happening in your case. Could you please try the latest version and see if the problem goes away? Please let me know. Pavel On 5/29/12 3:56 AM, Morten Groftehauge wrote:
Hi Phenixbb,
3.2A data, 110 Wilson B, I41, twinned. Imperfect inverted repeat dsDNA with 4 protein monomers, NCS not used in refinement. If I don't include TLS I get a nice stable R-factor while RMS goes down. If I include TLS (whether as one group per chain or as chosen by Phenix) this happens:
Density disappears around some of the DNA bases as an obvious difference. If I run Refmac with TLS it just never finishes.
While I could just refine without TLS this does make me worried that there is something wrong with my model or my data (besides being terrible).
Cheers, Morten
My version is 1.7.3-928. I'll try downloading the nightly and see if it
goes away. Don't know why I didn't think of that first.
Thanks
On 29 May 2012 12:23, Pavel Afonine
Hi Morten,
I'm sorry about the problem.
Are you using the latest Phenix? There was a bug in phenix.refine that I fixed a while ago, and the bug behavior was very similar to what I see happening in your case.
Could you please try the latest version and see if the problem goes away? Please let me know.
Pavel
On 5/29/12 3:56 AM, Morten Groftehauge wrote:
Hi Phenixbb,
3.2A data, 110 Wilson B, I41, twinned. Imperfect inverted repeat dsDNA with 4 protein monomers, NCS not used in refinement. If I don't include TLS I get a nice stable R-factor while RMS goes down. If I include TLS (whether as one group per chain or as chosen by Phenix) this happens:
Density disappears around some of the DNA bases as an obvious difference. If I run Refmac with TLS it just never finishes.
While I could just refine without TLS this does make me worried that there is something wrong with my model or my data (besides being terrible).
Cheers, Morten
______________________________**_________________ phenixbb mailing list [email protected] http://phenix-online.org/**mailman/listinfo/phenixbbhttp://phenix-online.org/mailman/listinfo/phenixbb
-- Morten K Grøftehauge, PhD Pohl Group Durham University
I like the new version but it does not seem to have helped much. Before it
shot up by 3%, this time by 2.5%.
[image: Inline images 1]
=/
On 29 May 2012 13:39, Morten Groftehauge
My version is 1.7.3-928. I'll try downloading the nightly and see if it goes away. Don't know why I didn't think of that first.
Thanks
On 29 May 2012 12:23, Pavel Afonine
wrote: Hi Morten,
I'm sorry about the problem.
Are you using the latest Phenix? There was a bug in phenix.refine that I fixed a while ago, and the bug behavior was very similar to what I see happening in your case.
Could you please try the latest version and see if the problem goes away? Please let me know.
Pavel
On 5/29/12 3:56 AM, Morten Groftehauge wrote:
Hi Phenixbb,
3.2A data, 110 Wilson B, I41, twinned. Imperfect inverted repeat dsDNA with 4 protein monomers, NCS not used in refinement. If I don't include TLS I get a nice stable R-factor while RMS goes down. If I include TLS (whether as one group per chain or as chosen by Phenix) this happens:
Density disappears around some of the DNA bases as an obvious difference. If I run Refmac with TLS it just never finishes.
While I could just refine without TLS this does make me worried that there is something wrong with my model or my data (besides being terrible).
Cheers, Morten
______________________________**_________________ phenixbb mailing list [email protected] http://phenix-online.org/**mailman/listinfo/phenixbbhttp://phenix-online.org/mailman/listinfo/phenixbb
-- Morten K Grøftehauge, PhD Pohl Group Durham University
-- Morten K Grøftehauge, PhD Pohl Group Durham University
Hi Morten, sorry for the trouble once again. Hm.. this seems like a case where I need the data to be able to reproduce the problem myself and fix it. Could you please send me all inputs so I can do it? I'll need data and model, and tell what exactly did you do, or just .eff file. Please send files off-list: directly to my email. I'm traveling right now so I might not be able to look right away, though I will do my best to address this problem asap (once I get the files). Thanks, Pavel On 5/29/12 7:39 AM, Morten Groftehauge wrote:
I like the new version but it does not seem to have helped much. Before it shot up by 3%, this time by 2.5%.
On 29 May 2012 12:23, Pavel Afonine
mailto:[email protected]> wrote: Hi Morten,
I'm sorry about the problem.
Are you using the latest Phenix? There was a bug in phenix.refine that I fixed a while ago, and the bug behavior was very similar to what I see happening in your case.
Could you please try the latest version and see if the problem goes away? Please let me know.
Pavel
On 5/29/12 3:56 AM, Morten Groftehauge wrote:
Hi Phenixbb,
3.2A data, 110 Wilson B, I41, twinned. Imperfect inverted repeat dsDNA with 4 protein monomers, NCS not used in refinement. If I don't include TLS I get a nice stable R-factor while RMS goes down. If I include TLS (whether as one group per chain or as chosen by Phenix) this happens:
Density disappears around some of the DNA bases as an obvious difference. If I run Refmac with TLS it just never finishes.
While I could just refine without TLS this does make me worried that there is something wrong with my model or my data (besides being terrible).
Cheers, Morten
Hi Morten, while I'm waiting for the files, and then while working on fixing the problem (if you send me the files), could you please try one more thing? Try switching from the default: bulk_solvent_and_scale.mode=fast to bulk_solvent_and_scale.mode=slow In the GUI you will need to go to "All parameters" to do so. Thanks, Pavel
participants (2)
-
Morten Groftehauge
-
Pavel Afonine