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Bioinformatics. 2008 Mar 15;24(6):872-3. doi: 10.1093/bioinformatics/btn040. Epub 2008 Jan 28.

On distance and similarity in fold space.

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  • 1Center of Applied Molecular Engineering, Division of Bioinformatics, Department of Molecular Biology, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria.


Metric information on similarities and distances in fold space is essential for quantitative work in structural bioinformatics and structural biology. Here we derive a suitable metric for protein structures from the fundamental axioms of similarity. Derivation of the metric also clarifies the relationship between the interrelated concepts of distance and similarity.

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