CC+: a relational database of coiled-coil structures

OD Testa, E Moutevelis, DN Woolfson

Research output: Contribution to journalArticle (Academic Journal)peer-review

124 Citations (Scopus)


We introduce the CC+ Database, a detailed, searchable repository of coiled-coil assignments, which is freely available at Coiled coils were identified using the program SOCKET, which locates coiled coils based on knobs-into-holes packing of side chains between α-helices. A method for determining the overall sequence identity of coiled-coil sequences was introduced to reduce statistical bias inherent in coiled-coil data sets. There are two points of entry into the CC+ Database: the ‘Periodic Table of Coiled-coil Structures’, which presents a graphical path through coiled-coil space based on manually validated data, and the ‘Dynamic Interface’, which allows queries of the database at different levels of complexity and detail. The latter entry level, which is the focus of this article, enables the efficient and rapid compilation of subsets of coiled-coil structures. These can be created and interrogated with increasingly sophisticated pull-down, keyword and sequence-based searches to return detailed structural and sequence information. Also provided are means for outputting the retrieved coiled-coil data in various formats, including PyMOL and RasMol scripts, and Position-Specific Scoring Matrices (or amino-acid profiles), which may be used, for example, in protein-structure prediction.
Translated title of the contributionCC+: a relational database of coiled-coil structures
Original languageEnglish
Pages (from-to)D315 - D322
Number of pages8
JournalNucleic Acids Research
Volume37 (suppl 1)
Publication statusPublished - Jan 2009

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