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Fast Structural Alignment of Biomolecules Using a Hash Table, N-Grams and String Descriptors
AbstractThis work presents a generalized approach for the fast structural alignment of thousands of macromolecular structures. The method uses string representations of a macromolecular structure and a hash table that stores n-grams of a certain size for searching. To this end, macromolecular structure-to-string translators were implemented for protein and RNA structures. A query against the index is performed in two hierarchical steps to unite speed and precision. In the first step the query structure is translated into n-grams, and all target structures containing these n-grams are retrieved from the hash table. In the second step all corresponding n-grams of the query and each target structure are subsequently aligned, and after each alignment a score is calculated based on the matching n-grams of query and target. The extendable framework enables the user to query and structurally align thousands of protein and RNA structures on a commodity machine and is available as open source from http://lajolla.sf.net.
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Bauer, R.A.; Rother, K.; Moor, P.; Reinert, K.; Steinke, T.; Bujnicki, J.M.; Preissner, R. Fast Structural Alignment of Biomolecules Using a Hash Table, N-Grams and String Descriptors. Algorithms 2009, 2, 692-709.View more citation formats
Bauer RA, Rother K, Moor P, Reinert K, Steinke T, Bujnicki JM, Preissner R. Fast Structural Alignment of Biomolecules Using a Hash Table, N-Grams and String Descriptors. Algorithms. 2009; 2(2):692-709.Chicago/Turabian Style
Bauer, Raphael André; Rother, Kristian; Moor, Peter; Reinert, Knut; Steinke, Thomas; Bujnicki, Janusz M.; Preissner, Robert. 2009. "Fast Structural Alignment of Biomolecules Using a Hash Table, N-Grams and String Descriptors." Algorithms 2, no. 2: 692-709.
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