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 …

Important update The ClusteredNR database is now the default Protein BLAST database. Learn more about ClusteredNR

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 …

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.

New Guide to BLAST home and search pages Blast report description Blast topics Frequently Asked Questions Getting Help ¶ Write to the help desk Mailing list BLAST tutorials About …

Local alignments algorithms (such as BLAST) are most often used. A global alignment should only be used on sequences that share significant similarity over most of their extents, and then …

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

Mar 17, 2025 · The Basic Local Alignment Search Tool (BLAST) finds regions of local similarity between sequences. The program compares nucleotide or protein sequences to sequence …

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 …

This document first introduces the BLAST databases available from NCBI (in Section 2). The actual guide (Section 3) divides BLAST searches into several categories according to the …