COCO(Complementary Coordinates) is a new computational tool developed by British and Spanish researchers seeks to contribute to the information held in protein data banks. This server is the result of collaboration between the University of Nottingham and the European Bioinformatics Institute, both in the UK, with the Spanish institutions IRB Barcelona –located at the Barcelona Science Park–, the "Instituto Nacional de Bioinformática" and the Barcelona Supercomputing Center (BSC). COCO, whose features are described in this month's issue of the journal Proteins, analyses the distribution of the proposed ensembles of structures and generates another ensemble that offers new solutions that better satisfy the data.

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