16154 citations
1 runs

bl2seq

By Altschul S., Lipman D., Last update 1494698998
All tools Run this tool

bl2seq description

Bl2seq (BLAST 2 Sequences) performs a comparison between two sequences using either the blastn or blastp algorithm. Both sequences must be either nucleotides or proteins. bl2seq allows the blast searching of one sequence against another sequence, without having to run formatdb to create a blast database of the sequence to be searched against. bl2seq is one of the programs distributed along with the old blastall program by the NCBI.


Parent program: blast

BLAST is a software for comparing a query sequence with a library or database of sequences. BLAST identifies library hits that resemble the query above a certain threshold. Different types of BLASTs are designed according to the query and database types and search specificity (nucleotide blast implemented by blastn, megablast anddiscontiguousmegablast algorithms, protein blast by algorithms blastp, psi-blast, phi-blast, delta-blast, and three mixed types – blastx, tblastn, tblastx). Some specialized BLAST search types are also provided.