This tool produces the alignment of two given sequences using BLAST
engine for local alignment.

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 sequence in FASTA format from:to:

or upload FASTA file
Sequence 2 Enter sequence in FASTA format from:to:

or upload FASTA file

Comments and suggestions to blast-help@ncbi.nlm.nih.gov