Bioinformatics Advance Access originally published online on October 23, 2006
Bioinformatics 2006 22(22):2735-2738; doi:10.1093/bioinformatics/btl274
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Helix Interaction Tool (HIT): a web-based tool for analysis of helix-helix interactions in proteins
Department of Molecular Biophysics and Biochemistry, Yale University New Haven, CT 06520, USA
*To whom correspondence should be addressed.
Motivation: In many proteins, helixhelix interactions can be critical to establishing protein conformation (folding) and dynamics, as well as determining associations between protein units. However, the determination of a set of rules that guide helixhelix interaction has been elusive. In order to gain further insight into the helixhelix interface, we have developed a comprehensive package of tools for analyzing helixhelix packing in proteins. These tools are available at http://helix.gersteinlab.org. They include quantitative measures of the helix interaction surface area and helix crossing angle, as well as several methods for visualizing the helical interaction. These methods can be used for analysis of individual protein conformations or to gain insight into dynamic changes in helix interactions. For the latter purpose, a direct interface from entries in the Molecular Motions Database to the HIT site has been provided.
Contact: Mark.Gerstein{at}yale.edu
Received on May 9, 2006; accepted on May 25, 2006