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+BLAST+ Command Line Applications
+
+The NCBI Basic Local Alignment Search Tool (BLAST) finds regions of
+local similarity between sequences. The program compares nucleotide or
+protein sequences to sequence databases and calculates the statistical
+significance of matches. BLAST can be used to infer functional and
+evolutionary relationships between sequences as well as help identify
+members of gene families.
+
+The Basic Local Alignment Search Tool (BLAST) is the most widely used
+sequence similarity tool. There are versions of BLAST that compare
+protein queries to protein databases, nucleotide queries to nucleotide
+databases, as well as versions that translate nucleotide queries or
+databases in all six frames and compare to protein databases or queries.
+PSI-BLAST produces a position-specific-scoring-matrix (PSSM) starting
+with a protein query, and then uses that PSSM to perform further
+searches. It is also possible to compare a protein or nucleotide query
+to a database of PSSM’s. The NCBI supports a BLAST web page (at
+blast.ncbi.nlm.nih.gov) as well as a network service. The NCBI also
+distributes stand-alone BLAST applications for users who wish to run
+BLAST on their own machines or with their own databases.
+
+BLAST+ is a new suite of BLAST tools that utilizes the NCBI C++
+Toolkit. The BLAST+ applications have a number of performance and
+feature improvements over the legacy BLAST applications (ncbi-blast).
+
+Some useful links:
+
+Help https://www.ncbi.nlm.nih.gov/books/NBK1762/
+Manual https://www.ncbi.nlm.nih.gov/books/NBK279690/
+Downloads ftp://ftp.ncbi.nih.gov/blast/executables/blast+/
+Databases ftp://ftp.ncbi.nlm.nih.gov/blast/db/
+ChangeLog http://www.ncbi.nlm.nih.gov/books/NBK131777
+Reference https://www.ncbi.nlm.nih.gov/pubmed/20003500
+
+Citing:
+BLAST+: architecture and applications. Camacho C, Coulouris G, Avagyan
+V, Ma N, Papadopoulos J, Bealer K, Madden TL. BMC Bioinformatics. 2009
+Dec 15;10:421. doi: 10.1186/1471-2105-10-421.