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blast.ncbi.nlm.nih.gov /Blast.cgi In bioinformatics , BLAST ( basic local alignment search tool ) [ 3 ] is an algorithm and program for comparing primary biological sequence information, such as the amino-acid sequences of proteins or the nucleotides of DNA and/or RNA sequences.
The NCBI assigns a unique identifier (taxonomy ID number) to each species of organism. [5] The NCBI has software tools that are available through web browsers or by FTP. For example, BLAST is a sequence similarity searching program. BLAST can do sequence comparisons against the GenBank DNA database in less than 15 seconds.
Gish developed the first BLAST API, which was used in EST [10] annotation and Entrez data production, as well as in the NCBI BLAST version 1.4 application suite (Gish, unpublished). Gish was also the creator of and project manager for the earliest NCBI Dispatcher for distributed services (inspired by CORBA's Object Request Broker).
HPC-BLAST: NCBI compliant multinode and multicore BLAST wrapper. Distributed with the latest version of BLAST, this wrapper facilitates parallelization of the algorithm on modern hybrid architectures with many nodes and many cores within each node. [2] Protein: Burdyshaw CE, Sawyer S, Horton MD, Brook RG, Rekapalli B: 2017 CS-BLAST
Most BLAST implementations use a fixed default word length that is optimized for the query and database type, and that is changed only under special circumstances, such as when searching with repetitive or very short query sequences. Implementations can be found via a number of web portals, such as EMBL FASTA and NCBI BLAST.
Note: BLOSUM 62 is the default matrix for protein BLAST. Experimentation has shown that the BLOSUM-62 matrix is among the best for detecting most weak protein similarities. [1] Several sets of BLOSUM matrices exist using different alignment databases, named with numbers.
[4] [5] NCBI is the home of GenBank, [6] the U.S. node of the International Sequence Database Consortium, and PubMed, one of the most heavily used sites in the world for the search and retrieval of biomedical information. Lipman is one of the original authors of the BLAST sequence alignment program, and a respected figure in bioinformatics.
BLAST (biotechnology), Basic Local Alignment Search Tool, an algorithm used in bioinformatics; Blast cell or precursor cell, in cytology, a type of partially differentiated, usually unipotent cell; Blast disease, a disease of cereal crops; Blast injury, a complex type of physical trauma resulting from direct or indirect exposure to an explosion