Blast Off with Color: Creative Space Shuttle Designs to Print

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 calculates the statistical significance of matches. 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 bottom of the page to align your sequences. Smart Blast searches a protein query against the landmark database Enter Protein Query Sequence About Us Follow us for breaking news and latest updates: Policies and Standards Have a Tip? Terms of Use About The Blast Privacy Policy Contact Copyright © 2026 The Blast

BLAST can be used to infer functional and evolutionary relationships between sequences as well as help identify members of gene families. There are several types of BLAST searches. BLAST is also often used as part of other algorithms that require approximate sequence matching. BLAST is available on the web on the NCBI website. Different types of BLASTs are available according to the query sequences and the target databases.