Choose program to use and database to search:

Program: BLASTN Use MegaBlast

Database

Enter here your input data as
Or load it from disk

Please read about FASTA format description

Set subsequence: From To

The query sequence is filtered for low complexity regions by default.
Filter Low complexity Mask for lookup table only Mask lower case

Expect
Perform ungapped alignment

Word Size
Percent Identity

Discontiguous Word options Template length
Template type
Require 2 word hits for extension

Other advanced options: Show Tax Blast reports

NCBI-gi Graphical Overview Alignment view
Descriptions
Alignments
Color schema

Return alignment endpoints only

Last modified: Jan 11, 2002