HOMD User Documentation     
4-94] Programs available for the BLAST search
The NCBI BLAST family of programs includes:

BLASTPCompares an amino acid query sequence against a protein sequence database
BLASTNCompares a nucleotide query sequence against a nucleotide sequence database
BLASTXCompares a nucleotide query sequence translated in all reading frames against a protein sequence database
TBLASTN Compares a protein query sequence against a nucleotide sequence database dynamically translated in all reading frames
TBLASTXCompares the six-frame translations of a nucleotide query sequence against the six-frame translations of a nucleotide sequence database. Please note that tblastx program cannot be used with the nr database on the BLAST Web page
MegaBLAST Compares a query to closely related sequences and works best if the target percent identity is 95% or more but is very fast
Discontiguous MegaBLASTUses an initial seed that ignores some bases (allowing mismatches) and is intended for cross-species comparisons
PSI-BLAST Allows the user to build a PSSM (position-specific scoring matrix) using the results of the first BlastP run
PHI-BLAST Performs the search but limits alignments to those that match a pattern in the query
DELTA-BLAST Constructs a PSSM using the results of a Conserved Domain Database search and searches a sequence database

Article last modified on 2015-09-15 11:08:27 by tsute; viewed 383 times; Category: User Documentation; Topic: Tools & Downloa

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