Basic Local Alignment Search Tool 2.2.19 (Default branch)


 
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Old 12-18-2008
Basic Local Alignment Search Tool 2.2.19 (Default branch)

BLAST is a set of similarity search programs designed to explore all of the available sequence databases regardless of whether the query is protein or DNA. It uses a heuristic algorithm which seeks local as opposed to global alignments, and is therefore able to detect relationships among sequences which share only isolated regions of similarity. It can be run locally as a full executable, and can be used to run BLAST searches against private, local databases, or downloaded copies of the NCBI databases. It runs on Mac OS, Win32, LINUX, Solaris, IBM AIX, SGI, Compaq OSF, and HP- UX systems. License: Open Software License Changes:
The BLASTDB environment variable now supports multiple database search paths. When possible, a smaller protein lookup table is used to improve performance. formatrpsdb now supports creating databases larger than 2G. seedtop now supports searches with gi lists. The X3 value for blastn/megablast was corrected. Image

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GLAM2-PURGE(1)							   glam2 Manual 						    GLAM2-PURGE(1)

NAME
glam2-purge - Removes redundant sequences from a FASTA file SYNOPSIS
glam2-purge file score [options] DESCRIPTION
glam2-purge is a modified version of Andrew Neuwald's purge program that removes redundant sequences from a FASTA file. This is recommended in order to prevent highly similar sequences distorting the search for motifs. Purge works with either DNA or protein sequences and creates an output file such that no two sequences have a (gapless) local alignment score greater than a threshold specified by the user. The output file is named <file>.<score>. The alignment score is based on the BLOSUM62 matrix for proteins, and on a +5/-1 scoring scheme for DNA. Purge can also be used to mask tandem repeats. It uses the XNU program for this purpose. OPTIONS
-n Sequences are DNA (default: protein). -b Use blast heuristic method (default for protein). -e Use an exhaustive method (default for DNA). -q Keep first sequence in the set. -x Use xnu to mask protein tandem repeats. SEE ALSO
glam2(1), glam2format(1), glam2mask(1), glam2scan(1), xnu(1) The full Hypertext documentation of GLAM2 is available online at http://bioinformatics.org.au/glam2/ or on this computer in /usr/share/doc/glam2/. REFERENCES
Purge was written by Andy Neuwald and is described in more detail in Neuwald et al., "Gibbs motif sampling: detection of bacterial outer membrane protein repeats", Protein Science, 4:1618-1632, 1995. Please cite it if you use Purge. If you use GLAM2, please cite: MC Frith, NFW Saunders, B Kobe, TL Bailey (2008) Discovering sequence motifs with arbitrary insertions and deletions, PLoS Computational Biology (in press). AUTHORS
Andrew Neuwald Author of purge, renamed glam2-purge in Debian. Martin Frith Modified purge to be ANSI standard C and improved the user interface. Timothy Bailey Modified purge to be ANSI standard C and improved the user interface. Charles Plessy <plessy@debian.org> Formatted this manpage in DocBook XML for the Debian distribution. COPYRIGHT
The source code and the documentation of Purge and GLAM2 are released in the public domain. GLAM2 1056 05/19/2008 GLAM2-PURGE(1)