BLASTN programs search nucleotide databases using a nucleotide query. more...
Enter Query Sequence


Enter a descriptive title for your BLAST search
BLAST results will be displayed in a new format by defaultNew
Enter Subject Sequence

Choose Search Set
Database sequences non-default value
Add organism

Enter organism common name, binomial, or tax id. Only 20 top taxa will be shown

Create custom database
Enter an Entrez query to limit search
Program Selection
Choose a BLAST algorithm

Choose a BLAST algorithm
Search database Nucleotide collection (nr/nt) using Megablast (Optimize for highly similar sequences)
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