[phenixbb] secondary structure restraint

[Jianghai Zhu]

Hi all,

I am trying to use hydrogen bond definitions to restrain my secondary  
structure in my refinement.  The number I use for distance_ideal is  
2.8.  What should I use for sigma?

Thanks.

Jianghai

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Jianghai Zhu, Ph.D
CBR Institute for Biomedical Research
Department of Pathology
Harvard Medical School
200 Longwood Ave., Boston, MA 02115
Ph: 617-278-3211
Fx: 618-278-3232
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