NCBI | Entrez | BLAST 2 sequences | BLAST | Example | Help

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BLAST 2 SEQUENCES

This tool produces the alignment of two given sequences using BLAST engine for local alignment.
The stand-alone executable for blasting two sequences (bl2seq) can be retrieved from NCBI ftp site
Reference: Tatiana A. Tatusova, Thomas L. Madden (1999), "Blast 2 sequences - a new tool for comparing protein and nucleotide sequences", FEMS Microbiol Lett. 174:247-250
Program
Matrix

Parameters used in BLASTN program only:
Reward for a match:Penalty for a mismatch:
Use Mega BLAST Strand option

Open gap and extension gap penalties
gap x_dropoff expect word size Filter

Sequence 1 Enter accession or GI or download from file
or sequence in FASTA format from:to:
Sequence 2 Enter accession or GI or download from file
or sequence in FASTA format from:to: