Xray / neutron joint refinement
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Hi, I have just done a joint x-ray / neutron refinement in Phenix using 5PTI structure and data from PDB. The input contains H atoms, with positions as refined against neutron dataset. In the resulting model, all H atoms ended up in 'idealized X-ray' positions (C-H distance of 0.96A), just as they would if I performed refinement against xray data only with riding model for H hydrogen atoms. Is it possible to run joint X-ray neutron refinement in such a manner that final H atoms positions are based on neutron data? Regards, Anna Makal
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Hi Anna, which version of Phenix are you using? If it is from before 2012'ish, you may fix this by updating Phenix. Cheers, Tim On 01/16/2015 05:32 PM, Anna Makal wrote:
Hi,
I have just done a joint x-ray / neutron refinement in Phenix using 5PTI structure and data from PDB. The input contains H atoms, with positions as refined against neutron dataset.
In the resulting model, all H atoms ended up in 'idealized X-ray' positions (C-H distance of 0.96A), just as they would if I performed refinement against xray data only with riding model for H hydrogen atoms.
Is it possible to run joint X-ray neutron refinement in such a manner that final H atoms positions are based on neutron data?
Regards,
Anna Makal
_______________________________________________ phenixbb mailing list [email protected] http://phenix-online.org/mailman/listinfo/phenixbb
-- Dr Tim Gruene Institut fuer anorganische Chemie Tammannstr. 4 D-37077 Goettingen GPG Key ID = A46BEE1A
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Anna,
If possible try a different, perhaps more modern structure than 5PTI.
Leif
On Fri, Jan 16, 2015 at 12:33 PM, Tim Gruene
Hi Anna,
which version of Phenix are you using? If it is from before 2012'ish, you may fix this by updating Phenix.
Cheers, Tim
On 01/16/2015 05:32 PM, Anna Makal wrote:
Hi,
I have just done a joint x-ray / neutron refinement in Phenix using 5PTI structure and data from PDB. The input contains H atoms, with positions as refined against neutron dataset.
In the resulting model, all H atoms ended up in 'idealized X-ray' positions (C-H distance of 0.96A), just as they would if I performed refinement against xray data only with riding model for H hydrogen atoms.
Is it possible to run joint X-ray neutron refinement in such a manner that final H atoms positions are based on neutron data?
Regards,
Anna Makal
_______________________________________________ phenixbb mailing list [email protected] http://phenix-online.org/mailman/listinfo/phenixbb
-- Dr Tim Gruene Institut fuer anorganische Chemie Tammannstr. 4 D-37077 Goettingen
GPG Key ID = A46BEE1A
_______________________________________________ phenixbb mailing list [email protected] http://phenix-online.org/mailman/listinfo/phenixbb
participants (3)
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Anna Makal
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Leif Hanson
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Tim Gruene