Contact Number
In chemistry, a contact number (CN) is a simple solvent exposure measure that measures residue burial in proteins.
The definition of CN varies between authors, but is generally defined as the number of either C or C atoms within a sphere around the C or C atom of the residue. The radius of the sphere is typically chosen to be between 8 and 14Å.
See also
- Kissing number, a similar concept in mathematics
References
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