BLAST
Enhancements in Recent Releases
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The
last two releases of BLAST (2.2.1 and 2.2.2) introduced several
enhancements:
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In both the Web and standalone versions of BLAST
and PSI-BLAST, composition-based statistics and edge-correction
have been improved.
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The latest standalone version of PSI-BLAST, blastpgp,
accepts batch input.
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Formatdb now automatically produces database volumes
if a source database is larger than 4 billion letters.
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The tabular output option has been added to blastpgp
and rpsblast under the command line switch "-m 8".
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A new -D option for fastacmd will dump an entire
BLAST database in FASTA format.
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| • | A new -c option for fastacmd creates separate definition
lines for multiple GI numbers (with duplicate sequenc data) that have
been merged together in nr. |
| • | Version 4 of the BLAST databases is now fully supported.
Use the -A option with formatdb to produce the new database version.
The BLAST binaries for release 2.2.2 are entirely compatible with both the current and the new version 4 of the BLAST databases. For more information, and to download the latest version, see: ftp://ftp.ncbi.nih.gov/blast/ To receive automatic notification of BLAST version releases, subscribe to the BLASTAnnounce service at: www.ncbi.nlm.nih.gov/ BLAST/blastannounce.html. |
