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- Basic Local Alignment Search Tool - BLAST
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
- Welcome to BLAST Help — BLASTHelp documentation
Welcome to BLAST Help ¶ Getting started ¶ Web BLAST quick start guide New BLAST databases 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 BLAST ¶ NCBI Handbook The Statistics of Sequence Similarity Scores BLAST
- NCBI Bioinformatics Resources: An Introduction: BLAST: Compare . . .
BLASTp (Protein BLAST): compares one or more protein query sequences to a subject protein sequence or a database of protein sequences This is useful when trying to identify a protein (see From sequence to protein and gene below)
- BLAST Quick Start - National Library of Medicine
Descriptions shows database matches sorted by significance (BLAST Score and Expect value) BLAST Score — the sum of the match scores (positive), mismatch and gap penalties (negative) in the BLAST aligment
- Introduction to BLAST - BLAST® Help - NCBI Bookshelf
NCBI Bookshelf A service of the National Library of Medicine, National Institutes of Health BLAST® Help [Internet] Bethesda (MD): National Center for Biotechnology Information (US); 2008-
- BLAST in Bioinformatics: Types, Steps Applications
Explore BLAST (Basic Local Alignment Search Tool) in bioinformatics: its definition, five types, working steps, and key applications in sequence analysis
- Nucleotide BLAST: Search nucleotide databases using a nucleotide query
Standard Nucleotide BLAST BLASTN programs search nucleotide databases using a nucleotide query more
- BLAST for beginners - Digital World Biology
BLAST for beginners introduces students to blastn, a commonly used tool for comparing nucleotide sequences (DNA and RNA) This popular tutorial shows how to do a blast search with a nucleotide sequence, highlights information in the search results, and shows how to interpret the E value and alignment scores
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