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?

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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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