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  1. Aug 3, 2023 · One of the most commonly used bioinformatics tools today to study DNA and protein sequences is called BLAST. BLAST stands for Basic Local Alignment Search Tool. It is a widely used bioinformatics program that was first introduced by Stephen Altschul et al. in 1990 and has since become one of the most popular tools for sequence similarity search.

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      Biological Databases- Types and Importance. A biological...

  2. 1. Introduction. BLAST is an acronym for Basic Local Alignment Search Tool and refers to a suite of programs used to generate alignments between a nucleotide or protein sequence, referred to as a “query” and nucleotide or protein sequences within a database, referred to as “subject” sequences. The original BLAST program used a protein ...

    • David Wheeler, Medha Bhagwat
    • 2007
  3. Aug 6, 2024 · The Basic Local Alignment Search Tool (BLAST) finds regions of similarity between sequences. The program compares nucleotide or protein sequences and calculates the statistical significance of matches. BLAST can be used to infer functional and evolutionary relationships between sequences as well as help identify members of gene families.

    • Elliott Smith
    • 2015
  4. Oct 10, 2023 · Introduction to BLAST What is BLAST. BLAST stands for Basic Local Alignment Search Tool; It is a widely used bioinformatics software; BLAST finds regions of local similarity between sequences; It compares nucleotide or protein sequences to sequence databases; It calculates the statistical significance of matches; How BLAST Works

  5. Jul 1, 2004 · BLAST is a heuristic that finds short matches between two sequences and attempts to start alignments from these ‘hot spots’. In addition to performing alignments, BLAST provides statistical information to help decipher the biological significance of the alignment; this is the ‘expect’ value, or false-positive rate.

    • Scott D. McGinnis, Thomas L. Madden
    • 10.1093/nar/gkh435
    • 2004
    • 2004/07/07
  6. HHS. USA.gov. 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. BLAST can be used to infer functional and evolutionary relationships between sequences as well as help ...

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  8. BLAST is a local alignment tool which means that it searches for regions of similiarity instead of trying to align the entire length of the sequences. Although global alignment methods result in the most mathematically optimized alignments of full length sequences, they may miss local regions of sequence similiarity.

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