Jul 21, 2025 · The Basic Local Alignment Search Tool (BLAST) finds regions of local similarity between sequences. The program compares nucleotide or protein sequences to sequence databases and …

Standard Nucleotide BLAST BLASTN programs search nucleotide databases using a nucleotide query. more...

This title appears on all BLAST results and saved searches. Enter one or more queries in the top text box and one or more subject sequences in the lower text box. Then use the BLAST button at the …

Getting Help ¶ Write to the help desk Mailing list BLAST tutorials About BLAST ¶ NCBI Handbook The Statistics of Sequence Similarity Scores BLAST glossary References Blast+ Command Line …

This title appears on all BLAST results and saved searches. Enter one or more queries in the top text box and one or more subject sequences in the lower text box. Then use the BLAST button at the …

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Smart Blast searches a protein query against the landmark database Enter Protein Query Sequence

The NCBI provides a suite of command-line tools to run BLAST called BLAST+. This allows users to perform BLAST searches on their own server without size, volume and database restrictions.

You can expand a cluster on your BLAST results to view and download a report or the sequences of all member proteins, and you can also perform a BLAST alignment of all the members of the cluster.

Upload file : Your Saved Search Strategies (Click headers to sort columns) ... Please sign in to My NCBI to see your saved searches