NCBI BLAST Search

NCBI 2 Sequences Blast

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

Run BLAST

Program

Sequence 1

Enter accession or GI

or sequence in FASTA format:

Or load it from disk

Set subsequence: From to

Sequence 2

Enter accession or GI

or sequence in FASTA format:

Or load it from disk

Set subsequence: From to

Or load it from disk

Advanced settings

Use this section to customize the execution on BLAST.

Parameters used in BLASTN program only:

Reward for a match

Penalty for a mismatch

Open gap penalty

Extension gap penalty

Gap x_dropoff

Expect value

Word size

Filter