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  1. nih.gov
    https://blast.ncbi.nlm.nih.gov

    Basic Local Alignment Search Tool - BLAST

    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 …

  2. nih.gov
    https://blast.ncbi.nlm.nih.gov › BLAST_guide.pdf
    [PDF]

    BLAST Basic Local Alignment Search Tool

    Starting from the query sequence column on the left and cross-referencing to the right, a user will arrive at the specific BLAST program(s) best suited for that search. This document is also …

  3. nih.gov
    https://blast.ncbi.nlm.nih.gov › Blast.cgi

    BLAST: Basic Local Alignment Search Tool

    Click on a 'save' link (on the far right) to save the search parameters for that job to your My NCBI account. Click on 'download' to save the search strategy in ASN.1 format for use with …

  4. nih.gov
    https://blast.ncbi.nlm.nih.gov › doc › elastic-blast › overview.html

    Overview — ElasticBLAST 1.4.0 documentation

    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 …

  5. nih.gov
    https://blast.ncbi.nlm.nih.gov › Blast.cgi

    Nucleotide BLAST: Search nucleotide databases using a nucleotide …

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

  6. nih.gov
    https://blast.ncbi.nlm.nih.gov › Blast.cgi

    BLAST: Basic Local Alignment Search Tool

    Saved Strategies saves all of your search parameters. It saves query sequences only if they are expressed as accessions or as FASTA files less than 10,000 characters long.