Improved tools for biological sequence comparison.

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چکیده

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Improved tools for biological sequence comparison.

We have developed three computer programs for comparisons of protein and DNA sequences. They can be used to search sequence data bases, evaluate similarity scores, and identify periodic structures based on local sequence similarity. The FASTA program is a more sensitive derivative of the FASTP program, which can be used to search protein or DNA sequence data bases and can compare a protein sequ...

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Dedicated Hardware for Biological Sequence Comparison

Biological sequence comparison is a time consuming task on a Von Neuman computer. The addition of dedicated hardware for parallelizing the comparison algorithms results in a reduction of several orders of magnitude in the execution time. This paper presents and compares different dedicated approaches, based on the parallelization of the algorithms on linear arrays of processors.

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SAMBA: hardware accelerator for biological sequence comparison

MOTIVATION SAMBA (Systolic Accelerator for Molecular Biological Applications) is a 128 processor hardware accelerator for speeding up the sequence comparison process. The short-term objective is to provide a low-cost board to boost PC or workstation performance on this class of applications. This paper places SAMBA amongst other existing systems and highlights the original features. RESULTS R...

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Reducing storage requirements for biological sequence comparison

MOTIVATION Comparison of nucleic acid and protein sequences is a fundamental tool of modern bioinformatics. A dominant method of such string matching is the 'seed-and-extend' approach, in which occurrences of short subsequences called 'seeds' are used to search for potentially longer matches in a large database of sequences. Each such potential match is then checked to see if it extends beyond ...

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Geometric Aspects of Biological Sequence Comparison

We introduce a geometric framework suitable for studying the relationships among biological sequences. In contrast to previous works, our formulation allows asymmetric distances (quasi-metrics), originating from uneven weighting of strings, which may induce non-trivial partial orders on sets of biosequences. The distances considered are more general than traditional generalized string edit dist...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 1988

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.85.8.2444